Comparison of 1911-1913 U.S. Ship Radio Calls (original) (raw)
Comparison of 1911-1913 U.S. Ship Radio Calls
Thomas H. White -- January 1, 2001
This is a review of radio callsigns used by U.S. merchant vessels as of four dates from 1911 through 1913. The chart's starting point consists of all the entries from the "vessels with radio apparatus" section in the June 30, 1911 and June 30, 1912 editions of Merchant Vessels of the United States. The other two date columns report the radio callsigns (if any) listed for these vessels in the January 1, 1912 edition of Wireless Telegraph Stations of the World, and the July 1, 1913 edition of Radio Stations of the United States.
The calls in the June 30, 1911 and January 1, 1912 lists were mostly two letters, and generally were self-assigned by the radio companies operating the on-board equipment. The June 30, 1912 calls were assigned by the Bureau of Navigation under its authority to specify ship signaling identifiers, with three-letter K calls going to ships along the Atlantic and Gulf Coasts, and three-letter W calls assigned to Pacific Coast vessels. The July 1, 1913 list was the first issued after the Commerce Department began licencing radio transmitters. There were few changes from the previous year, although new calls were assigned to ships which had been issued KA- and KC- callsigns, because KA-KC call block had subsequently been assigned by international agreement for exclusive use by German radio transmitters.
| Radio Callsign as of: | Rig. | Name of vessel. | Signalletters. | |||
|---|---|---|---|---|---|---|
| 6/30/1911 | 1/1/1912 | 6/30/1912 | 7/1/1913 | |||
| KD | KD | WNO | WNO | St. s. | A. G. Lindsay. | ---- |
| A2 | A2 | WWO | WWO | St. s. | Acapulco. | JMBP |
| UV | UV | KUV | KUV | St. s. | Admiral Dewey. | KNRS |
| UW | UW | KUW | WAF | St. s. | Admiral Farragut. | KNSW |
| AS | AS | WAS | WAS | St. s. | Admiral Sampson. | KNSB |
| UG | UG | KUX | KUX | St. s. | Admiral Schley. | KNSQ |
| MV | MV | KMV | KMV | St. s. | Advance. | KBDJ |
| AB | AB | --- | --- | St. s. | Alabama. | ---- |
| XG | XG | KSX | KSX | St. s. | Alabama. | ---- |
| HD | HD | WAA | WAA | St. s. | Alameda. | KBML |
| AJ | AJ | KAJ | KEJ | St. s. | Alamo. | KBQR |
| VG | VG | KVG | KVG | St. s. | Algonquin. | KHNP |
| -- | -- | WNK | WNK | St. s. | Al-Ki. | KCJT |
| Q5 | Q5 | KQA | KQA | St. s. | Alleghany. | JVMG |
| MA | MA | KMA | KMA | St. s. | Allianca. | KDNC |
| BW | BW | WRV | WRV | St. s. | Alliance. | KMVD |
| -- | -- | KYH | KYH | St. y. | Aloha. | LBKS |
| MAV | MAV | --- | --- | St. s. | Alva. | ---- |
| AM | AM | KNZ | KNZ | St. p. | America. | ---- |
| MS | MS | KMS | KMS | St. s. | Ancon. | KRNT |
| A3 | A3 | --- | WDN | St. s. | Ann Arbor No. 3. | ---- |
| A4 | A4 | --- | WDO | St. s. | Ann Arbor No. 4. | ---- |
| A5 | A5 | --- | WDP | St. s. | Ann Arbor No. 5. | ---- |
| KA | KA | KKA | KKA | St. s. | Antilles. | KWBN |
| VA | VA | KVA | KVA | St. s. | Apache. | KQVN |
| VB | VB | KVB | KVB | St. s. | Arapahoe. | KRBV |
| UV | UV | WTB | WTB | St. s. | Argyll. | KQGP |
| HC | HC | --- | WFG | St. s. | Arizona. | ---- |
| KY | KY | --- | --- | St. s. | Arundell. | ---- |
| GS | GS | KTO | KTO | St. s. | Astral. | KSRN |
| GM | GM | WTX | WTX | St. s. | Asuncion. | KQLW |
| -- | MAT | KYA | KYA | St. y. | Atalanta. | KVQL |
| GN | GN | WTT | WTT | St. s. | Atlas. | KNTW |
| DAB | DAB | --- | --- | St. s. | Augustus B. Wolvin. | ---- |
| X2 | X2 | WWQ | WWQ | St. s. | Aztec. | KPWD |
| -- | -- | KCZ | KDX | St. s. | Bayamon. | LCJF |
| WD | WD | WWD | WWD | St. s. | Bear. | LBHM |
| WB | WB | WWB | WWB | St. s. | Beaver. | LBHN |
| -- | RD | KRD | KRD | St. s. | Belfast. | LBCQ |
| QH | QH | KQB | KQB | St. s. | Berkshire. | JVNR |
| P9 | P9 | WBR | WBR | St. s. | Bertha. | KPCW |
| -- | -- | KCW | KDW | St. s. | Borinquen. | LCFS |
| BN | BN | KXA | KXA | St. s. | Boston. | KTDG |
| AZ | AZ | KAZ | KEZ | St. s. | Brazos. | KWJN |
| EK | EK | WBK | WBK | St. s. | Breakwater. | JTRS |
| -- | -- | KOS | KOS | St. s. | Brunswick. | JSHT |
| P7 | P7 | WAB | WAB | St. s. | Buckman. | KRGC |
| JB | JB | KJB | KJB | St. s. | Bunker Hill. | KWDT |
| BV | BV | WBV | WBV | St. s. | Cabrillo. | KTFD |
| -- | -- | WNB | --- | St. s. | California. | ---- |
| RN | RN | KRN | KRN | St. s. | Calvin Austin. | KSNB |
| RC | RC | KRC | KRC | St. s. | Camden. | KWCG |
| -- | -- | WQC | WQC | St. s. | Camino. | LCND |
| GB | GB | WTV | WTV | St. s. | Captain A. F. Lucas. | KTNW |
| DB | DB | KDB | KDB | St. s. | Caracas. | KGMT |
| NC | NC | WNC | WNC | St. s. | Carlos. | KWRT |
| NC | NC | --- | WFE | St. s. | Carolina. | ---- |
| CB | CB | KCB | KGB | St. s. | Carolina. | KMTB |
| -- | -- | KNF | KNF | St. s. | Carolyn. | LCMN |
| -- | -- | WTI | WTI | St. s. | Catania. | KNLC |
| -- | SD | WSN | WSN | St. s. | Centralia. | KSFD |
| KC | KC | KKC | KKC | St. s. | Chalmette. | JTNB |
| NV | NV | --- | --- | St. s. | Charles Nelson. | KNLF |
| NA | NA | WSH | WSH | St. s. | Chehalis. | KQSP |
| VK | VK | KVK | KVK | St. s. | Cherokee. | KDNP |
| HN | HN | KXQ | KXQ | St. s. | Chester W. Chapin. | ---- |
| HO | HO | --- | WFI | St. p. | Chicago. | ---- |
| AB | AB | WAC | WAC | St. s. | Chicago. | ---- |
| MCI | MCI | --- | --- | St. s. | Chili. | ---- |
| WA | WA | WWA | WWA | St. s. | China. | KNLT |
| BH | BH | WBH | WBH | St. s. | Chippewa. | KVRW |
| KC | KC | --- | WFJ | St. s. | Christopher Columbus. | ---- |
| FB | FB | KFB | KFB | St. s. | City of Atlanta. | KTFN |
| FJ | FJ | KFJ | KFJ | St. s. | City of Augusta. | JVBF |
| XO | XO | KRY | KRY | St. s. | City of Baltimore. | LBTG |
| AQ | AQ | --- | WDV | *St. p. | City of Benton Harbor. | ---- |
| CF | CF | --- | WFQ | St. p. | City of Buffalo. | ---- |
| PQ | PQ | --- | WDT | St. s. | City of Chicago. | ---- |
| CO | CO | --- | WEA | St. p. | City of Cleveland. | ---- |
| FA | FA | KFA | KFA | St. s. | City of Columbus. | KTBS |
| CD | CD | --- | WEC | St. p. | City of Detroit. | ---- |
| CP | CP | --- | WFP | St. s. | City of Erie. | ---- |
| GF | GF | KTQ | KTQ | St. s. | City of Everett. | KMCQ |
| WE | WE | KXB | KXB | St. s. | City of Lowell. | KLWV |
| FC | FC | KFC | KFC | St. s. | City of Macon. | KSLD |
| FD | FD | KFD | KFD | St. s. | City of Memphis. | KRPQ |
| FY | FY | KFY | KFY | St. s. | City of Montgomery. | LBKQ |
| XN | XN | KRZ | KRZ | St. s. | City of Norfolk. | LBTM |
| M2 | M2 | WWP | WWP | St. s. | City of Panama. | JNTF |
| R2 | R2 | WWF | WWF | St. s. | City of Para. | JSWK |
| GQ | GQ | WGQ | WGQ | St. s. | City of Puebla. | JVRN |
| FK | FH | KFK | KFK | St. s. | City of Savannah. | KWGQ |
| GA | GA | WGA | WGA | St. s. | City of Seattle. | KHLJ |
| BX | BX | --- | WDI | St. s. | City of South Haven. | ---- |
| CG | CG | --- | WEG | St. p. | City of St. Ignace. | ---- |
| FX | FX | KFX | KFX | St. s. | City of St. Louis. | LBKR |
| S2 | S2 | WWG | WWG | St. s. | City of Sydney. | JRMP |
| -- | Q | KXL | KXL | St. p. | City of Taunton. | --- |
| GY | GY | WGY | WGY | Ga. s. | City of Topeka. | KCPL |
| WQ | WQ | --- | --- | St. s. | City of Traverse. | ---- |
| CA | CA | KCA | KGA | St. s. | Coamo. | KQGB |
| P4 | P4 | WTS | WTS | St. s. | Col. E. L. Drake. | KSJN |
| MX | MX | KMX | KMX | St. s. | Colon. | KPBW |
| AF | AF | KAF | --- | St. s. | Colorado. | JTKC |
| XC | XC | KRO | KRO | St. s. | Columbia. | KWBD |
| -- | -- | WHC | WHC | St. s. | Columbia. | LCMQ |
| AM | AM | KAM | KEM | St. s. | Comal. | KDFC |
| VC | VC | KVC | KVC | St. s. | Comanche. | KMLR |
| CW | CW | KXC | KXC | St. p. | Commonwealth. | KWPJ |
| KD | KD | KKD | KKD | St. s. | Comus. | KPSB |
| AC | AC | KAC | KEC | St. s. | Concho. | KJHD |
| AF | AF | KNC | KNC | St. s. | Concord. | KJCV |
| -- | -- | KXO | KXO | St. p. | Connecticut. | ---- |
| -- | -- | WAR | WAR | St. s. | Cordova. | LCHP |
| NR | NR | WSO | WSO | St. s. | Coronado. | KQHT |
| -- | -- | KYC | KYC | St. y. | Corsair. | KNWS |
| HO | HO | WNN | WNN | St. s. | Corwin. | ---- |
| KR | KR | KKR | KKR | St. s. | Creole. | KWDR |
| QZ | QZ | KQC | KQC | St. s. | Cretan. | JWBH |
| MD | MD | KMD | KMD | St. s. | Cristobal. | KRSV |
| -- | -- | KUC | KUC | St. s. | Cuba. | KQSM |
| GK | GC | --- | WGK | St. s. | Curaçao. | KMNJ |
| CV | CV | KNU | KNU | St. s. | Currier. | LBRF |
| DGK | DGK | --- | --- | St. s. | D. G. Kerr. | ---- |
| -- | -- | KTW | KTW | Sch. | Delaware Sun. | KSRL |
| -- | -- | WGD | WGD | St. s. | Delhi. | KVPJ |
| AD | AD | KAD | KED | St. s. | Denver. | KRFN |
| NL | NL | WNL | WNL | Bk. | Diamond Head. | KPWH |
| -- | -- | WAO | WAO | St. s. | Dirigo. | KNGW |
| AU | AU | WAU | WAU | St. s. | Dolphin. | KLHD |
| AT | AT | WAH | WAH | St. s. | Dora. | ---- |
| QD | QD | KQD | KQD | St. s. | Dorchester. | KGDQ |
| CD | CD | KNA | KNA | St. s. | Dorothy Bradford. | KGPQ |
| CS | OS | --- | WEE | St. p. | Eastern States. | ---- |
| ES | ES | --- | --- | St. s. | Easton. | ---- |
| -- | -- | WAE | WAE | St. s. | Edith. | KQNL |
| -- | -- | KKL | KKL | St. s. | El Alba. | KRLC |
| -- | -- | KKT | KKT | St. s. | El Cid. | KPMH |
| -- | -- | KKY | KKY | St. s. | El Dia. | KRDQ |
| -- | -- | KKU | KKU | St. s. | El Mundo. | LBQK |
| -- | EN | KKN | KKN | St. s. | El Norte. | KPJC |
| -- | -- | KKX | KKX | St. s. | El Occidente. | LBRM |
| -- | -- | KKV | KKV | St. s. | El Oriente. | LBRC |
| -- | -- | KKZ | KKZ | St. s. | El Rio. | KPJW |
| -- | -- | KKS | KKS | St. s. | El Siglo. | KRHL |
| -- | -- | KKB | KKB | St. s. | El Sol. | LBPK |
| -- | -- | KKQ | KKQ | St. s. | El Sud. | KPGH |
| -- | -- | KKW | KKW | St. s. | El Valle. | KQTV |
| ME | ME | --- | --- | St. y. | Electra. | KCMN |
| -- | -- | KVU | --- | St. s. | Elmer A. Keeler. | KTMR |
| -- | -- | KTK | KTK | St. s. | Elsegundo. | ---- |
| P1 | P1 | WMN | WMN | St. s. | Enterprise. | KQRD |
| -- | -- | KTM | KTM | St. s. | Eocene. | LCFV |
| WZ | WZ | KWZ | KWZ | St. s. | Esperanza. | KQRN |
| QE | QE | KQE | KQE | St. s. | Essex. | KJLW |
| -- | -- | KNE | KNE | St. s. | Evelyn. | LCKQ |
| KO | KO | KKO | KKO | St. s. | Excelsior. | JWNR |
| SK | SK | WRU | WRW | St. s. | F. A. Kilburn. | KSVR |
| FBS | FBS | --- | --- | St. s. | F. B. Squire. | ---- |
| GF | GF | WRK | WRK | St. s. | Falcon. | KWPF |
| ID | ID | WSU | --- | St. s. | Fearless. | ---- |
| -- | -- | WPF | --- | St. s. | Fearless. | ---- |
| RF | RF | WRF | WRF | St. s. | Fifield. | KWQP |
| -- | MTK | KYF | KYF | St. y. | Florence. | KRMT |
| XF | XF | KSY | KSY | St. s. | Florida. | KWJF |
| ST | ST | --- | --- | St. s. | Fort Bragg. | LBQP |
| -- | -- | WSB | WSB | St. s. | Francis H. Leggett. | KSHC |
| DAN | DAN | --- | --- | St. s. | Frank H. Peavey. | ---- |
| DHN | DHN | --- | --- | St. s. | Frank T. Heffelfinger. | ---- |
| QK | QK | KQF | KQF | St. s. | Frederick. | JPRK |
| -- | -- | KFF | KFF | St. s. | Frieda. | ---- |
| DFB | DFB | --- | --- | St. s. | Frederick B. Wells. | ---- |
| AY | AY | WRT | WRT | St. s. | Geo. W. Elder. | JPHT |
| F2 | -- | WNG | WNG | St. s. | George W. Fenwick. | KWLS |
| DUF | DUF | --- | --- | St. s. | George W. Peavey. | ---- |
| GC | GC | --- | WFA | St. s. | Georgia. | ---- |
| -- | -- | WBZ | WBZ | Bge. | Glory of the Seas. | ---- |
| QY | QY | KQG | KQG | St. s. | Gloucester. | KLTC |
| B3 | B3 | WPG | WPG | St. s. | Goliah. | KWLP |
| GV | GV | WGV | WGR | St. s. | Governor. | KWFN |
| RB | RB | KRB | KRB | St. s. | Governor Cobb. | KVQJ |
| RV | RV | KRV | KRV | St. s. | Governor Dingley. | KPLG |
| HV | HV | --- | --- | St. s. | Grant. | KVTL |
| -- | -- | KCV | KDV | St. s. | Grayson. | LCFT |
| QG | QG | KQR | KQR | St. s. | Grecian. | KPSF |
| -- | -- | WQG | WQG | St. s. | Greenwood. | ---- |
| -- | -- | KTG | KTG | St. s. | Gulfoil. | LCNR |
| GY | CY | --- | --- | St. s. | Gypsy III. | ---- |
| DBO | DBO | --- | --- | St. s. | H. P. Bope. | ---- |
| OA | OA | KOA | KOA | St. s. | Hamilton. | KNWT |
| HN | HN | WHN | WHN | St. s. | Hanalei. | KQNW |
| -- | -- | KCT | KDT | St. s. | Harry Luckenbach. | KPQT |
| RH | RH | WRH | WRH | St. s. | Harvard. | KWGD |
| WH | WH | KWH | KWH | St. s. | Havana. | KVST |
| UHF | UHF | KFH | KFH | St. s. | Herman Frasch. | LBJP |
| BP | BP | WBP | WBP | St. s. | Hermosa. | KRPV |
| P2 | P2 | WMM | WMM | St. s. | Hilonian. | KVFD |
| NQ | NQ | --- | WDW | St. s. | Holland. | ---- |
| NW | NW | WKH | WKH | St. s. | Honolulan. | LBQT |
| QJ | QJ | KQH | KQH | St. s. | Howard. | KMHN |
| HX | HX | WHX | WHX | St. s. | Humboldt. | KMWP |
| VH | VH | KVH | KVH | St. s. | Huron. | KSDT |
| BT | BT | WMK | WMK | St. s. | Hyades. | KPVW |
| UHG | UHG | KFI | KFI | *Sch. | I. D. Fletcher. | LBFT |
| RQ | RQ | KRQ | KRQ | St. s. | I. J. Merritt. | KPML |
| YN | YN | --- | WCZ | St. s. | Illinois. | ---- |
| Q1 | Q1 | KQI | KQI | St. s. | Indian. | KGVF |
| SC | SC | --- | WFC | St. s. | Indiana. | ---- |
| DC | DC | --- | WFD | St. s. | Iowa. | ---- |
| VF | VF | KVF | KVF | St. s. | Iroquois. | KGCN |
| BG | BG | WBG | WBG | St. s. | Iroquois. | KVSB |
| QI | QI | KQU | KQU | St. s. | Itasca. | JKTD |
| NU | NU | WTK | WTK | St. s. | J. A. Chanslor. | LBJN |
| SC | SC | WSC | WRC | St. s. | J. B. Stetson. | KVDP |
| QF | QF | KTF | KTF | St. s. | J. M. Guffey. | KRNL |
| DJC | DJC | --- | --- | St. s. | James C. Wallace. | ---- |
| DAM | DAM | --- | --- | St. s. | James H. Hoyt. | ---- |
| DJR | DJR | --- | --- | St. s. | James H. Reed. | ---- |
| OC | OC | KOC | KOC | St. s. | Jamestown. | KLVJ |
| OD | OD | KOD | KOD | St. s. | Jefferson. | KPCM |
| HM | HM | WAJ | WAJ | St. s. | Jefferson. | KSTP |
| RE | -- | --- | --- | Bkn. | John S. Emery. | KGTS |
| -- | -- | WSJ | WSJ | St. s. | John A. Hooper. | ---- |
| BI | BI | WPZ | WPZ | Ga. s. | Joseph Pulizer. | ---- |
| JO | -- | --- | --- | St. s. | Josephine. | ---- |
| -- | -- | KCU | --- | St. s. | Julia Luckenbach. | KSCP |
| QN | QN | KQJ | KQJ | St. s. | Juniata. | KNFH |
| AX | AX | WWS | WWS | St. s. | Kansas City. | KGRV |
| --- | MTJ | KYR | KYR | Sch. y. | Karina. | LBVN |
| QL | QL | KQK | KQK | St. s. | Kershaw. | KNWB |
| DH | DH | WPK | WPK | St. s. | Kingfisher. | KRWC |
| YA | KSM | KYK | KYK | St. y. | Kismet. | KRTD |
| NI | NI | WSX | WSX | St. s. | Klamath. | LBGP |
| WK | WK | WWK | WWK | St. s. | Korea. | KRNC |
| NS | NS | WNS | WNS | St. s. | Kvichak. | KPSM |
| AP | AP | KAP | KEP | St. s. | Lampasas. | KBNT |
| UD | UD | WTC | WTC | St. s. | Lansing. | KSVF |
| QA | QA | KTA | KTA | St. s. | Larimer. | KSML |
| AI | AI | WAI | WAI | St. s. | Latouche. | LBQM |
| --- | L2 | WNI | WNI | St. s. | Leelanaw. | KNGR |
| --- | --- | WNH | WNH | St. s. | Lewis Luckenbach. | KSTB |
| QX | QX | KQL | KQL | St. s. | Lexington. | JSPT |
| AS | AS | KNB | KNB | St. s. | Lexington. | KJBV |
| QO | QO | KTD | KTD | St. s. | Ligonier. | KSLC |
| XQ | XQ | KRL | KRL | St. p. | Louise. | JCMW |
| IU | IN | KNQ | KNQ | St. s. | Lucy Neff. | ---- |
| U2 | U2 | WML | WML | St. s. | Lurline. | KWMR |
| --- | MGB | KYL | KYL | St. y. | Lysistrata. | ---- |
| P3 | NY | --- | --- | St. s. | M. F. Plant. | KNMV |
| HW | HW | WHW | WHW | St. s. | Mackinaw. | KLBC |
| OG | OG | KOG | KOG | St. s. | Madison. | LBSP |
| MA | MA | KXD | KXD | St. s. | Maine. | KLDB |
| WE | WE | WWE | WWE | St. s. | Manchuria. | KSWC |
| MN | MN | --- | WFW | St. s. | Manitou. | ---- |
| DM | DM | KDM | KDM | St. s. | Maracaibo. | KPLQ |
| HK | HK | WHK | WHK | St. s. | Mariposa. | KBGT |
| OW | OW | KOW | KOW | St. s. | Mascotte. | KDGQ |
| JM | JM | KJM | KJM | St. s. | Massachusetts. | KWBM |
| MW | MW | --- | --- | Ga. y. | Maurence. | ---- |
| GH | GH | WTW | WTW | St. s. | Maverick. | KHBS |
| QM | QM | KQM | KQM | St. s. | Merrimack. | JTMH |
| WX | WX | KWX | KWX | St. s. | Mexico. | KVJR |
| OZ | OZ | KOZ | KOZ | St. s. | Miami. | KNGB |
| MK | MK | KNM | KNM | St. s. | Millinocket. | LBNM |
| PJ | -- | KRR | KRR | St. s. | Mills. | KQSR |
| MIN | MIN | --- | WEK | St. s. | Minnesota. | ---- |
| MI | MI | WMI | WMI | St. s. | Minnesota. | KTDS |
| HN | HN | --- | WFX | St. s. | Missouri. | ---- |
| MK | MO | KXE | KXE | St. s. | Mohawk. | KMQC |
| VM | VM | KVM | KVM | St. s. | Mohawk. | KWRL |
| -- | MQ | KXM | KXM | St. s. | Mohegan. | KMRC |
| KM | KM | KKM | KKM | St. s. | Momus. | KVRL |
| WN | WN | WWN | WWN | St. s. | Mongolia. | KSTH |
| OM | OM | KOM | KOM | St. s. | Monroe. | KSGN |
| MG | MG | KNT | KNT | St. p. | Montauk. | ---- |
| WY | WY | KWY | KWY | St. s. | Monterey. | KQVM |
| WC | WC | KWC | KWC | St. s. | Morro Castle. | KQFG |
| FP | FP | KFP | KFP | St. s. | Nacoochee. | JWVM |
| BO | BQ | WBO | WBO | St. s. | Nann Smith. | KWLJ |
| QU | QU | KQN | KQN | St. s. | Nantucket. | KPBJ |
| G2 | G2 | WNJ | WNJ | St. s. | Navajo. | LBVC |
| -- | -- | KNL | KNL | St. s. | Nelson. | ---- |
| NS | NS | KXF | KXF | St. s. | New Hampshire. | KLFC |
| -- | MV | KXN | KXN | St. s. | New Haven. | KWDL |
| NJ | NJ | KNJ | KNJ | St. s. | New Jersey. | KSCW |
| Q9 | Q9 | KQV | KQV | St. s. | New Orleans. | JLSC |
| -- | N2 | WWH | WWH | St. s. | Newport. | JTVP |
| MNK | MNK | KSN | KSN | St. s. | New York. | KLPB |
| NK | NK | KNK | KNK | St. s. | New York. | KNBM |
| N2 | N2 | --- | WWH | St. s. | Newport. | JTVP |
| MAN | MAN | KYN | KYN | St. y. | Niagara. | KNHR |
| MJS | MJS | KYO | KYO | St. y. | Noma. | KRVB |
| SN | SN | WRN | WRN | St. s. | Nome City. | KPVF |
| NX | NX | WNX | WNX | St. s. | Northland. | KTDR |
| ND | ND | --- | WCN | St. s. | North Land. | ---- |
| JD | JD | KJD | KJD | St. s. | North Land. | LBJT |
| JS | JS | KJS | KJS | St. s. | North Star. | KQVW |
| AN | AN | WAN | WAN | St. s. | Northwestern. | KGVM |
| SG | SG | WSG | WSG | St. s. | Norwood. | KTLB |
| AH | AH | KAH | KEH | St. s. | Nueces. | KDSM |
| NE | NE | WNE | WNE | St. s. | Nushagak. | KTCB |
| QB | QB | KTB | KTB | St. s. | Oklahoma. | KWNH |
| JO | JO | KJO | KJO | St. s. | Old Colony. | KWHQ |
| UK | UK | WTD | WTD | St. s. | Oleum. | KQMJ |
| OV | OV | KOV | KOV | St. s. | Olivette. | KDQR |
| --- | --- | WPX | WPX | St. s. | Oneonta. | ---- |
| Q2 | Q2 | KQO | KQO | St. s. | Ontario. | KTGJ |
| MH | MH | KMH | KMH | St. s. | Panama. | KNTV |
| YA | YA | KTT | KTT | St. s. | Paraguay. | KQLB |
| Q3 | Q3 | KQP | KQP | St. s. | Parthian. | KDVH |
| V2 | V2 | WWI | WWI | St. s. | Pennsylvania. | JMQL |
| -- | NK | KXP | KXP | St. s. | Pequonnock. | KVGT |
| -- | -- | KTN | KTN | St. s. | Perfection. | LCBV |
| 15 | 15 | --- | WDA | St. s. | Pere Marquette. | ---- |
| 17 | 17 | --- | WDC | St. s. | Pere Marquette 17. | ---- |
| 18 | 18 | --- | WDD | St. s. | Pere Marquette 18. | ---- |
| 19 | 19 | --- | WDB | St. s. | Pere Marquette 19. | ---- |
| 20 | 20 | --- | WDE | St. s. | Pere Marquette 20. | ---- |
| QR | QR | KQX | KQX | St. s. | Persian. | JWNG |
| B2 | B2 | WWJ | WWJ | St. s. | Peru. | KLJD |
| DA | DA | KDA | KDA | St. s. | Philadelphia. | KCWD |
| MPH | MPH | KSM | KSM | St. s. | Philadelphia. | KLPC |
| GM | GM | KXG | KXG | St. p. | Pilgrim. | KBDV |
| I2 | I2 | WNP | WNP | St. s. | Pleiades. | KPSL |
| HY | HY | KXH | KXH | St. p. | Plymouth. | KHQS |
| CP | CP | KCP | KGP | St. s. | Ponce. | KPJD |
| -- | P3 | WNV | WNV | St. s. | Portland. | KQFP |
| QP | QP | KQY | KQY | St. s. | Powhatan. | KLVM |
| GW | GW | WGW | WGP | St. s. | President. | KVTF |
| OB | OB | KOB | KOB | St. s. | Princess Anne. | KNBV |
| CA | CA | KXI | KXI | St. p. | Priscilla. | KLWJ |
| KP | KP | KKP | KKP | St. s. | Proteus. | KPTR |
| PV | PV | KXJ | KXJ | St. p. | Providence. | KTQP |
| SQ | SQ | --- | WDU | St. s. | Puritan. | ---- |
| RN | RN | KXK | KXK | St. p. | Puritan. | KGJQ |
| QV | QV | KQQ | KQQ | St. s. | Quantico. | JWRL |
| GX | GX | WGX | WGX | St. s. | Queen. | JVWG |
| GO | GO | --- | --- | St. s. | Ramona. | KRWP |
| SU | SU | WBM | WBM | St. s. | Redondo. | KRPW |
| --- | RX | KVZ | KVZ | St. s. | Relay. | ---- |
| RJ | RJ | KRJ | KRJ | St. s. | Relief. | KWBH |
| IB | IB | --- | --- | St. s. | Resolute. | ---- |
| -- | -- | WSR | WSR | Shp. | Reuce. | JVPM |
| -- | RP | KXR | KXR | St. s. | Richard Peck. | KLGF |
| AG | AG | KAG | KEG | St. s. | Rio Grande. | JSDV |
| AM | AM | WRM | WRM | St. s. | Riverside. | KWPM |
| AQ | AQ | WRR | WRR | St. s. | Roanoke. | JVTN |
| UN | UN | WTE | WTE | St. s. | Roma. | KRTC |
| RK | RK | --- | --- | St. s. | Roosevelt. | KTWC |
| H2 | H2 | WWR | WWR | St. s. | Rose City. | KGTR |
| BM | BM | WTL | --- | St. s. | Rosecrans. | KNTC |
| CD | GD | WTU | WTU | *Sch. | S. O. Co. No. 91. | KSBP |
| P5 | P5 | WTY | WTY | *Sch. | S. O. Co. No. 93. | KSCL |
| GK | GH | KTP | KTP | *Sch. | S. O. Co. No. 94. | KTBG |
| GP | GP | WTZ | WTZ | *Sch. | S. O. Co. No. 95. | KTDJ |
| YA | YA | KCS | KDS | St. s. | S. V. Luckenbach. | KVCF |
| AB | AB | KAB | KEB | St. s. | Sabine. | KGNS |
| NY | NY | WNY | WNY | St. s. | St. Helens. | KWGT |
| MSL | MSL | KSL | KSL | St. s. | St. Louis. | HSPT |
| -- | -- | WSS | WSS | Shp. | St. Nicholas. | JHDG |
| MSP | MSP | KSO | KSO | St. s. | St. Paul. | HPTS |
| AS | AS | KAS | KES | St. s. | San Jacinto. | KSRV |
| O2 | O2 | WWL | WWL | St. s. | San Jose. | JWDV |
| CJ | CJ | KCJ | KGJ | St. s. | San Juan. | KPNW |
| J2 | J2 | WWM | WWM | St. s. | San Juan. | JWHL |
| AK | AK | KAK | KEK | St. s. | San Marcos. | JVSF |
| -- | -- | WNW | WNW | St. s. | San Ramon. | ---- |
| -- | -- | WAL | WAL | St. s. | Santa Ana. | KPRF |
| AK | AK | WRS | WRS | St. s. | Santa Clara. | KQGC |
| KS | KS | WPA | WPA | St. s. | Santa Cruz. | JBWH |
| UM | UM | WTF | WTF | St. s. | Santa Maria. | KRJH |
| US | US | WTG | WTG | St. s. | Santa Rita. | KRPL |
| GI | -- | --- | WGN | St. s. | Santa Rosa. | KCDR |
| WS | WS | KWS | KWS | St. s. | Saratoga. | KWDB |
| SAT | SAT | --- | --- | St. s. | Satellite. | ---- |
| HS | HS | KRS | KRS | St. s. | Savage. | KPNM |
| -- | WY | KYS | KYS | Ga. y. | Sea Otter. | KWDQ |
| -- | -- | WSV | --- | St. s. | Sea Rover. | KSBH |
| WG | WG | KWG | KWG | St. s. | Seguranca. | KHLT |
| VJ | VJ | KVJ | KVJ | St. s. | Seminole. | KDNS |
| GS | GS | WGS | WGS | St. s. | Senator. | KNJF |
| AV | AV | WAV | WAV | St. s. | Seward. | KWHD |
| MC | MC | --- | --- | St. p. | Sheboygan. | ---- |
| QC | QC | KTC | KTC | *Sch. | Shenango. | KSLR |
| MD | MD | KNS | KNS | St. p. | Shinnecock. | ---- |
| WU | WU | WWU | WWU | St. s. | Siberia. | KRWG |
| SM | SM | WHJ | WHJ | St. s. | Sierra. | KQHP |
| Q4 | Q4 | KQS | KQS | St. s. | Somerset. | LBVG |
| -- | -- | WHI | WHM | St. s. | Sonoma. | KQLV |
| GE | GE | WGE | WGE | St. s. | Spokane. | KRLV |
| D2 | -- | WSD | WSD | St. s. | Stanley Dollar. | KWNM |
| GL | GL | WGL | WGL | St. s. | State of California. | JTGP |
| -- | -- | WPS | WPS | St. s. | Starr. | LCPF |
| UDS | UDS | KTU | KTU | St. s. | Sun. | KVWH |
| QS | QS | KQZ | KQZ | St. s. | Suwannee. | LBTH |
| SC | SC | KFT | KFT | St. s. | Tasco. | LBHT |
| MG | MG | WPE | WPE | St. s. | Tatoosh. | ---- |
| TN | TN | --- | --- | St. s. | Tennessee. | ---- |
| SV | SV | --- | WCT | St. s. | Theodore Roosevelt. | ---- |
| UDG | YD | KTV | KTV | St. s. | Toledo. | KSBT |
| Q7 | Q7 | KQT | KQT | St. s. | Tuscan. | KVSW |
| A3 | A3 | WPC | WPC | St. s. | Tyee. | ---- |
| IA | IA | WPB | WPB | St. s. | Tyee Junior. | ---- |
| GU | GU | WGU | WGU | St. s. | Umatilla. | JVKF |
| FA | SA | --- | --- | St. s. | United States. | ---- |
| UN | UN | --- | --- | Ga. y. | Unome. | ---- |
| -- | -- | WNZ | WNZ | St. s. | Vanguard. | KTMJ |
| -- | -- | WHL | WHL | St. s. | Ventura. | KQML |
| AD | AD | WAD | WAD | St. s. | Victoria. | KNRM |
| WV | WV | KWV | KWV | St. s. | Vigilancia. | KHSN |
| BC | BC | --- | WFH | St. s. | Virginia. | ---- |
| XH | XK | KSZ | KSZ | St. s. | Virginia. | ---- |
| BVA | BVA | --- | --- | St. y. | Virginia. | KPMW |
| BD | BD | WTM | WTM | St. s. | W. S. Porter. | KVRD |
| -- | -- | WPY | WPY | St. s. | Wallula. | ---- |
| DWA | DWA | --- | --- | St. s. | Ward Ames. | ---- |
| -- | -- | KYW | KYW | St. y. | Warrior. | KVHJ |
| UG | UG | WTH | WTH | St. s. | Washtenaw. | KMFJ |
| P8 | P8 | WAW | WAW | St. s. | Watson. | KRGF |
| WS | WS | --- | WED | St. p. | Western States. | ---- |
| UH | UN | WUH | WHT | St. s. | Whittier. | KSJL |
| NH | NR | WMO | WMO | St. s. | Wilhelmina. | LBHF |
| SW | SW | WSW | WSW | St. s. | Willamette. | LCDV |
| WB | WB | --- | --- | St. s. | William B. Davock. | ---- |
| NF | NF | WTN | WTN | St. s. | Wm. F. Herrin. | LBTD |
| MFD | CMI | --- | --- | St. s. | William H. Gratwick. | ---- |
| WHM | WHM | --- | --- | St. s. | William Henry Mack. | ---- |
| SND | SND | --- | WER | St. s. | William P. Snyder. | ---- |
| SNW | SNW | --- | WEU | St. s. | Wilpen. | ---- |
| -- | -- | WND | WND | St. s. | Windber. | KTWF |
| QW | QW | KTE | KTE | St. s. | Winifred. | KNRC |
| MJ | MJ | KNW | KNW | St. s. | Wyandotte. | ---- |
| -- | -- | KCY | KDY | St. s. | Yaguez. | LCJB |
| RY | RY | WRY | WRY | St. s. | Yale. | KWBR |
| SY | SY | WSY | WQY | St. s. | Yosemite. | KVFM |
| AG | AG | WAG | WMY | St. s. | Yucatan. | KHNF |
| -- | -- | WBS | WBQ | St. s. | Yukon. | KNMV |
| -- | -- | WPQ | WPQ | St. s. | Zapora. | ---- |
| MZA | MZA | KNR | KNR | St. s. | Zealandia. | KNLM |
| DZ | DZ | KDZ | KDZ | St. s. | Zulia. | KQWV |