J2 — Kanto, Shin'etsu, Tokai, Hokuriku (now JA1, JA0, JA2, JA9) |
|
J2AAA |
|
Julian D. Hirsch |
|
|
JA-CQ#3 1947 |
|
J2AAB |
|
|
|
|
QST1946-11 |
|
J2AAC |
Lt Cmdr |
Donald. A. Yetter |
COMNAVFE, Tokyo |
|
1947-12-05-list |
|
J2AAF |
Major |
Jack G. Hines |
HQ PACUSA, Box 93, APO 925, San Francisco, Calfiornia |
W5GAB, KA1ABE, K4GIO |
JA-CQ#3 1947; QST 1946-10, 1946-11, 1947-01;
QSL dated 1946-09-01 in W5KNE's collection |
|
J2AAG |
ETM 2/Cl |
Carl M. Schontes |
USN Xmter Site, Totsuka, Navy 3923 |
|
1947-12-05-list |
|
J2AAK |
|
Joe Scaccia |
Navy 3923, Comm. Yokosuka, c/o F.P.O. San Francisco |
|
CQ Magazine 1947-06 |
|
J2AAL |
|
Tom L. Rothwell Jr. |
|
J5AAL, JA4AA, W6ZQZ, K6ZT |
His JA3AA QSL |
|
J2AAO |
Sgt |
Donn Weirick |
Tokyo, Box 119, HQ SQDN, FEAF, APO 925, c/o PM San Francisco, Calif.;
APO 925, c/o PM San Francisco, Calif.;
16th Comm Sq, FE/F, APO 925 |
JA2AB |
QSL dated 1947-03-22;
CQ Magazine 1947-06 (QST 1946-12);
1947-12-05-list |
|
|
Walt. |
HDQS.-SQDN.-Box119, APO 925, c/o PM San Francisco, Calif. |
|
QSL dated 1948-08-27 |
W2KFB/J2 |
J2AAP |
|
Julian D. Hirsch |
Johnson AAB, 27 miles Northwest of Tokyo |
|
QST 1946-12;
QSL dated 1946-07 in W5KNE's Collection |
|
J2AAQ |
|
Griffin L. Davis |
U.S. Army Signal Corps |
W5FJM, W2OOX, W4NGX |
1946-47 by W5KNE |
|
J2AAS |
Lt |
James E. Dalzell |
Air Comm Div, GHQ, APO 500, Tokyo |
|
1947-12-05-list |
|
J2AAT |
Civ |
Roger W. Cook |
72nd Sig Sv Bn, APO 503 |
|
1947-12-05-list |
|
J2AAY |
T/Sgt |
Frank Soltis |
139 AACS, APO 704, Tachikawa |
|
1947-12-05-list |
|
J2ABC |
|
Hank McTighe |
|
2AZS, 2ATY, W2BVU, W2EYD, KA2HM |
JA-CQ#2 1946; QST 1946-10,1946-12; "Henry" |
|
J2ACA |
CWO |
Lyle E. Scrivner |
3362 Sig Sv Bn, APO 181, Tokyo |
|
1947-12-05-list |
|
J2ACS |
Major |
Wayne E. Jones |
718th AAFBU, APO 181, Tokyo |
|
1947-12-05-list |
|
J2ADA |
2nd Lt |
C. H. Marshall |
317 Trp Carr Sq, APO 704, Tachikawa |
|
1947-12-05-list |
|
J2AEA |
1st Lt |
Henry F. Ciezak |
1st Sig Trp. 1st Cav Div, APO 201 |
|
1947-12-05-list |
|
J2AGA |
Civ |
Leonard N. Smith, Jr. |
718th AAFBU, APO 181 |
|
1947-12-05-list |
|
J2AHA |
Civ |
George W. Saylor |
8A SIg Corps School, APO 343-2 |
|
1947-12-05-list |
|
J2AHI |
Civ |
Mrs. Iris A. Colvin |
71st Sig Sv Bn, APO 500, Tokyo |
|
1947-12-05-list:
QSL dated 1948-01-05;
later JA2KG (Lt. Lloyd Colvin W6TG) |
|
J2AIA |
Civ |
Sydney Schneps |
314 Comp Wg, APO 994, Irumagawa |
|
1947-12-05-list |
|
J2AJA |
S/Sgt |
Manford C. Njust |
4th Air Trans Wing, 1539 AAFBU, APO 226 |
|
1947-12-05-list |
|
|
C. H. Thompson |
1539 AAFBU, APO 226 |
|
QSL dated June 22 (in a unknown year) |
|
J2AKA |
S/Sgt |
Charles R. Anderson |
1559th AAFUB, APO 226, Haneda |
|
1947-12-05-list |
|
J2ALA |
Cpl |
James F. Ronan |
16th Communications Sq, APO 925 |
|
1947-12-05-list |
|
J2AMA |
Lt Col |
A. E. Stuart |
3rd Bomb Gp, Yokota AAB, APO 328 |
|
1947-12-05-list |
|
J2AMC |
Lt Col |
Eugene C. Lavier |
J.MA, T.WB, APO 704 |
|
1947-12-05-list |
|
J2AOA |
T/4 |
Ronald E. Quirk |
Johnson AAB, APO 994 |
|
1947-12-05-list |
|
J2AQA |
Acrm |
Paul D. Bonnett |
COMNAVFE, Tokyo |
|
1947-12-05-list |
|
J2ARA |
Pfc |
David T. Yamaski |
Hqs Trp, 1st Cav Brig, APO 201-1 |
|
1947-12-05-list |
|
J2ARB |
|
|
Tokyo, Japan, Co. B, Sig. Svc. Battalion, APO 503, c/o F.P.O. San Francisco |
|
CQ Magazine 1947-06 |
|
J2ATA |
Civ |
R. H. Ahmann |
Hqs 16th Comm Sq, APO 925 |
|
1947-12-05-list |
|
J2ATC |
Brig Gen |
Ivan Lonsdale Farman |
Hq WPW-ATC, APO 226, Haneda AAB |
6MG, K6RG |
1947-12-05-list; W5KNE |
|
J2AUA |
S/Sgt |
Robert C. Northrup |
Hqs Trp, 8th Cavalry, APO 201-2 |
|
1947-12-05-list |
|
J2AUW |
|
|
|
|
QST 1946-11 |
|
J2AVA |
T/4 |
Lloyd R. King |
1st Sig Trp. 1st Cav Div, APO 201 |
|
1947-12-05-list |
|
J2AWA |
M/Sgt |
Robert J. Stadtlander |
317 Trp Carr Sq, Tachikawa, APO 704 |
|
1947-12-05-list |
|
J2AXI |
2nd Lt |
Norman J. Harner |
Hqs 8th Army (Sig Sec), APO 343 |
|
1947-12-05-list |
|
J2AZA |
Capt. |
Charles F. Janes |
Hq Det 519th M P Bn., APO 503 c/o P. M. San Francisco |
|
QSL postmarked as 1948-04-19; in Yahoo! Auction 2017-12-24 |
|
J2BAE |
|
R. H. Gauldin |
|
W0ZTD |
QSL dated 1948-11-09 |
|
J2BBD |
Civ |
Clarence A Horlitz |
Hqs 16th Comm Sq, APO 925 |
|
1947-12-05-list |
|
J2BGK |
Capt |
John R. Kersten |
Hqs Sugamo Prison, APO 181 |
|
1947-12-05-list |
|
J2BMC |
Civ |
Thomas C. Bradley |
Hqs FEAMCOM, APO 704 |
|
1947-12-05-list |
|
J2BNR |
|
Emil Rettig |
304th SIG. OPR. BN., c/o Postmaster, S.F., Calif. |
|
QSL dated 1948-05-29; Unit info: by W5KNE |
|
J2BRX |
Magor |
C. Q. Wadsworth |
c/o 8A Sig C School, APO 343-2 |
|
1947-12-05-list |
|
J2CAL |
Capt |
Charles A. Lotter |
GHQ, FEC, APO 500, Tokyo |
|
1947-12-05-list |
|
J2COM |
M/Sgt |
Roy S. Miller |
Johnson AAB, APO 994 |
JA2AT, W5FOZ |
1947-12-05-list; W5KNE |
|
J2DMR |
CWO |
Charles M. Miller |
Shiroi AAB, APO 181 |
|
1947-12-05-list |
|
J2DND |
Major |
Howard N Detrick |
139th AACS (769th AAFBU), APO 710 |
|
1947-12-05-list |
|
J2DON |
Cpl |
Don W. Roberts |
9th Weather Station, APO 226 |
|
1947-12-05-list |
|
J2EAR |
|
Karl |
3186 Sig Sv Bn APO 503; Near Yokohama |
|
eBay QSL dated 1947-04-17, reported by W5KNE |
|
J2ECH |
Civ |
Edgar C. Harrison |
Hq Brit Com, Sub Area, Tokyo |
|
1947-12-05-list |
|
J2EPK |
|
|
|
|
JA-CQ#2 1946 |
|
J2ESS |
Civ |
ESS/FI, GHQ, SCAP, APO 500 |
Radio Osaka Bldg, APO 660, Osaka |
|
1947-12-05-list |
|
J2EUG |
Crm |
Curtis W. Rickley |
USS APL-46, Tokyo |
|
1947-12-05-list;
QST 1946-12 |
|
J2EVT |
Lt Jg |
Nelson D. Large |
Fleet Activ, Yokosuka, Navy 3923 |
|
1947-12-05-list |
|
J2FEB |
Civ |
Frank E. Bristow |
Hqs Fifth Air Force, APO 710 |
|
1947-12-05-list |
|
J2FOX |
Capt |
Richard J. Fox |
72nd SIg Sv Bn, APO 503, Tokyo |
|
1947-12-05-list;
QSL dated 1947-02-15 (near Yokohama) |
|
J2FRS |
S/Sgt |
Frank E. DeBarry |
Flight Section, FEAF, APO 925 |
|
1947-12-05-list |
|
J2GHQ |
Major |
Robert M. Lantz |
Gen Acc Sec, SCAP, APO 500, Tokyo |
|
1947-12-05-list;
later JA2AV |
|
J2GIL |
Major |
Bruce W. Gillanders |
Hqs FEAMCOM, APO 323 |
JA2AW, W5BFR |
1947-12-05-list; W5KNE |
|
J2GJP |
2nd Lt |
George J. Porter |
753rd AAA Gun Bn, APO 503 |
|
1947-12-05-list |
|
J2HUK |
Civ |
H. J. Huck |
7th AACS Wing, APO 925 |
|
1947-12-05-list |
|
J2HYS |
Capt |
James R. Bates |
72nd Sig Sv Bn, APO 503 |
|
1947-12-05-list |
|
J2ILR |
Civ |
John B. Davidson |
Fifth Air Force, APO 710, Nagoya |
|
1947-12-05-list |
|
J2ISF |
Civ |
Rufus F Gatlin, Jr. |
139th AACS Sq, Det 140, APO 994 |
W4ISF |
1947-12-05-list |
|
J2ISH |
Pfc |
Tatsuo Ishiguro |
2nd Cav Brigade, APO 201-2 |
|
1947-12-05-list |
|
J2JCQ |
WOJG |
William H. Rumsey |
Yokohama Signal Depot, APO 503 |
|
1947-12-05-list |
|
J2JET |
T/5 |
John Thompson |
Det C, Co B, 204th Sig Opn Bn, APO 503 |
|
1947-12-05-list |
|
J2JIM |
Capt |
James W. Davis |
FEAMCOM, APO 323 |
|
1947-12-05-list |
|
J2JSB |
|
|
|
|
QST 1946-11 |
|
J2JWM |
ChiElect |
J. W. Marchant |
USN Xmtr Site, Totsuka, Navy 3923 |
|
1947-12-05-list |
|
J2KIF |
Capt |
Paul R. Stoney |
7th ACS Wisp, AFO 925 |
|
1947-12-05-list |
|
J2KTU |
1st Lt |
Ellis J. Melton |
91st AAFBU, 7th AACS Wg, APO 925 |
|
1947-12-05-list |
|
J2LGG |
Civ |
Robert M. Sternberg |
71st Sig Sv Bn, APO 500, Tokyo |
|
1947-12-05-list |
|
J2LPG |
1st Lt |
B. T. Richardson |
70th Sig Base Maint Co, APO 503 |
|
1947-12-05-list |
|
J2MAX |
1st Lt |
Max E. Bates |
613 ACW Sq, Johnson AAB, APO 994 |
|
1947-12-05-list |
|
J2MNB |
Civ |
William T. Kawai |
CCS, GHQ, SCAP, APO 500, Tokyo |
|
1947-12-05-list |
|
J2NYC |
1st Lt |
E. T. Hansen |
Johnson AAB, APO 994 |
|
1947-12-05-list |
|
J2NZI |
Civ |
Norman A. Sapiro |
Civilian Bk's, J.MA, APO 704 |
|
1947-12-05-list |
|
J2POY |
Civ |
J. E. Whitehouse |
Civil Comm Sec, SCAP, APO 500, Tokyo |
|
1947-12-05-list;
QSL dated 1948 in K8CX's collection;
later JA2BG |
|
J2RBC |
M/Sgt |
Lester S. Morgan |
7th Air Serv Gp, Yokota AAB, APO 328 |
|
1947-12-05-list |
|
J2RKD |
Civ |
George L. Daley |
2nd T Major Port, FS-258, APO 503 |
|
1947-12-05-list |
|
J2RLK |
|
Robert 'Bob' L. Klucheski |
Kawasaki |
W2DBD |
LNDX WEB site QSL dated 1948-02-27 |
|
J2ROC |
Major |
C. E. McBrayer |
Hqs Fifth Air Force, APO 710;
Nagoya, Japan, APO 710, c/o P.M. San Francisco |
|
1947-12-05-list; CQ Magazine 1947-06 |
|
J2RSM |
Sgt |
Geroge T. Sherman |
Johnson AAB, APO 994 |
|
1947-12-05-list;
QSL dated 194_-06-20 (Irumagawa) |
|
J2RWL |
Civ |
Rudolph W. Liska |
Civil Comm Sec, SCAP, APO 500 Tokyo |
|
1947-12-05-list |
|
J2SAB |
Major |
R. E. Dwinnell |
Tachikawa, B, APO 704 |
|
1947-12-05-list |
|
J2SCS |
M/Sgt |
Ervin W. Madsen |
8A Sig C School, APO 343-2 |
|
1947-12-05-list |
|
J2SDL |
Civ |
S. D. Larks |
Hq 8th Army (sig Sec), APO 343 |
|
1947-12-05-list |
|
J2SJS |
WOJG |
Glenn A. Johnson |
8 Army Auto Maint School, APO 343-2 |
|
1947-12-05-list |
|
J2USA |
Major |
(FEARL) C. Q. Wadsworth |
c/o 8A SigC School, APO 343-2 |
|
1947-12-05-list;
later JA2US |
|
J2UUU |
1st Lt |
Howard J. Hanson |
Hqs Co, 72nd Sig Sv Bn, APO 503;
South Yokohama, HQ Company, 72nd Signal Service BN, APO 503 |
|
1947-12-05-list; W5KNE (QSL 28 March 1948) |
|
J2UVW |
|
|
|
|
JA-CQ#3 1947 |
|
J2VFW |
Major |
Lawrence D. Terry |
Hqs Army Security Agency Pac, APO 500 |
|
1947-12-05-list |
|
J2YAB |
Cpl |
James W. Walker |
9th Recon Sq(VLR), Yokota, APO 328 |
|
1947-12-05-list |
|
J2YSD |
Pfc |
Arthur F. Froy |
70th Sig Base maint Co, APO 503 |
|
1947-12-05-list |
J3 — Kinki (now JA3) |
|
J3AAA |
Lt Col |
Dale T. Elliott |
25th Inf Div, APO 25, Hanayashiki |
|
1947-12-05-list;
JA-CQ#2 1946 |
|
J3AAD |
Capt |
Frank O. Stevens |
58th Signal Bn, APO 713, Kyoto;
Kyoto, Japan, APO 301, c/o P.M. San Francisco |
|
1947-12-05-list;
QSL dated 1948-05-29 in W5KNE's collection;
CQ Magazine 1947-06 |
|
J3AAH |
Capt |
Edger M. Harrell |
25th Inf Div, APO 25, Osaka |
|
1947-12-05-list |
|
J3AAI |
T/5 |
Willis S. Athearn |
Hqs Co, 35th Inf Regt, APO 25 |
|
1947-12-05-list |
|
J3GNX |
Capt |
Willard D. Tiffany |
126 Sig Sv Co, APO 713, Kyoto |
W6GNX, W6IDG, JA4AA, HL1KT |
1947-12-05-list
Aug. - Dec., 1948 (https://www.paara.org/newsletter/1974/graph197406.pdf) |
|
J3HRP |
|
|
APO 301, c/o PM San Francisco, Calif. |
|
CQ Magazine 1947-06 |
|
J3ICC |
Major |
John A. Gahr |
58th Signal Bn, APO 713, Kyoto |
|
1947-12-05-list |
|
J3KBE |
M/Sgt |
Edward O. Henderson |
1st Region(I Corps)441 CIC Det, APO 713 |
|
1947-12-05-list |
|
J3KVI |
T/3 |
Richard P. McNeill |
126 Sig Svc Co,. APO 713 |
|
1947-12-05-list |
|
J3VTQ |
T/5 |
Richard F. Dir |
Radio Osaka Bldg, APO 660, Osaka |
|
1947-12-05-list |
|
J3VTQ |
Pfc |
Berdon W. Smith |
Radio Osaka Bldg, APO 660, Osaka |
|
1947-12-05-list |
|
J3WGT |
|
John R. Wine |
|
|
QSL dated 1947-05-30 |
J4 — Chugoku & Shikoku (now JA4, JA5) |
|
J4AAC |
Major |
Jack Metheun Leslie Drudge-Coates |
British Indian Division Signals, British Commonwealth Forces;
Brindin Signals, B.C.O.F. Okayama, Japan |
G2DC DL2RO Y-DCR (India 1927). |
QSL dated 1946 in W5KNE's collection; CQ Magazine 1947-06 |
|
J4AAD |
S/L |
D. C. McGlashan |
Hq BCOF, APO 301, Kure |
|
1947-12-05-list |
|
J4AAG |
Capt |
V. H. Gilchrist |
Hq BCOF Signals, Kure, APO 301 |
|
1947-12-05-list |
|
J4AAI |
|
Keith Shore |
Iwakuni Air Field |
ZL4AI |
http://www.jking.kol.co.nz/ZL4AI.htm |
|
J4AAJ |
|
Tim Teeham |
Royal Australian Air Force Station, Bofu |
ZL2SK, VK2FW |
LNDX WEB site QSL dated 1947-03-13 |
|
J4AAK |
Cpl |
B. M. R. Selby |
BCAIR Station, BCOF, Miho, APO 301 |
G4LV |
1947-12-05-list; QSL dated 1947 in W5KNE's collection |
|
J4AAM |
WCI |
A. L. Jonson |
WLKS, BCOF, Kure, APO 301 |
|
1947-12-05-list |
|
J4AAO |
F/Lt |
L. R. Purston |
BCOF, 111 MCFU, Iwakuni, APO 301 |
|
1947-12-05-list |
|
J4AAP |
|
L. R. Bryant |
RAF Station Iwakuni, BCOF |
|
LNDX WEB site QSL dated 1948-04-27 |
|
J4AAQ |
|
Andre C. O'Neil |
BCOF Signals, Kure |
|
LNDX WEB site QSL dated 1949-05-19 |
|
J4AAV |
L/Rm |
Gerald A. Johnson |
HMS Adament, c/o NOIC Kure, APO 301 |
|
1947-12-05-list |
|
J4AAW |
Civ |
L. H. Martin |
NZ Bdcs'g Unit, BCOF, NZAPO 222, c/o 30 |
|
1947-12-05-list |
|
J4AAX |
Cfn |
W. W. Lambert |
BritComBaseWorkshops, Kure, APO 301 |
|
1947-12-05-list |
|
J4AAY |
L/C |
R. J. H. Leach |
BCAIR Sta, NZAPO 333, Iwakuni |
|
1947-12-05-list |
|
J4AAZ |
Cpl |
William Robert Hamer |
2 NZEF, NZAPO 222, BCOF, c/o APO 301 |
|
1947-12-05-list |
|
J4ABA |
CPO |
V. G. P. Weake |
AMS Sussex, FMO, NOIC, Kure, APO 301 |
|
1947-12-05-list |
|
J4ACA |
LAC |
E. Crossman |
BCAIR Station, Iwakuni, BCOF |
|
1947-12-05-list |
|
J4ADA |
LAC |
L. R. Svendson |
NZRAF, NZAPO 333, BCOF |
|
1947-12-05-list |
|
J4AEA |
Cpl |
D. E. Hocper |
NZRAF, NZAPO 333, BCOF |
|
1947-12-05-list |
|
J4AFA |
W/O |
H. G. Chandler |
81st Wing Hq, RAAF, BCOF |
|
1947-12-05-list;
QSL dated 1948-05 (Iwakuni) |
|
J4MLC |
|
J.V. Schlitz |
|
|
LNDX WEB site QSL dated 1948-07-03 |
|
J4WWP |
F/Lt |
W. W. Page |
Hq BCOF, Eta Jima, APO 301 |
|
1947-12-05-list |
J5 — Kyushu (now JA6) |
|
J5AAA |
|
|
24 Division Sig. Co., APO 24, c/o PM San Francisoc, Calif. |
|
CQ Magazine 1947-06 |
|
J5AAB |
M/Sgt |
Harro C. Beyer |
Hq 19th Inf Regt, APO 24, Kyushu |
|
1947-12-05-list |
|
J5AAD |
1st Lt |
Henry Ruppert |
Hq 34th Inf Regt, APO 24, Sasebo |
|
1947-12-05-list |
|
J5AAG |
T/4 |
William S. Cage |
Hq Co, 19th Inf Regt, APO 24 |
|
1947-12-05-list |
|
J5AAH |
T/5 |
Herbart L. Mussie |
14th Field Artillery Bn, APO 24 |
|
1947-12-05-list |
|
J5AAJ |
|
R. E. Levin |
315 Composite Wing APO 929, Fukuoka |
|
QSL dated 1947-07-01 in 5B4AHJ's collection |
|
|
Dewitte E. Field |
|
W4LQK, J5LQK, JA7AC, JA7AF |
W5KNE |
|
J5AAK |
M/Sgt |
Jess W. Smith |
24th Sig Co, APO 24, Kokura |
|
1947-12-05-list |
|
J5AAL |
M/SGt |
K. H. Hixson |
769th AAFBU, Kanoya AAB, APO 929-1 |
|
1947-12-05-list |
J2AAL |
|
Tom L. Rothwell Jr. |
|
JA3AA, W6ZQZ, K6ZT |
His JA3AA QSL |
|
J5ABA |
|
|
Kyusha, Japan, APO 929, c/o P.M. San Francisco |
|
QST 1947-01; CQ Magazine 1947-06 |
|
J5AIR |
1st Lt |
Harold D. Wilson |
Btry A, 13th FA Bn, APO 24 |
|
1947-12-05-list |
|
J5IBE |
S/Sgt |
James J. Orbison |
71st Air Eng Gp, Ashiya AAB, APO 929 |
|
1947-12-05-list; QSL dated 1948-12-02 in Club Log |
J5AAJ |
J5LQK |
Capt |
Dewitte E. Field |
527th Air Control & Warn Gp, APO 929 |
JA7AC, JA7AF, W4LQK |
1947-12-05-list; QSL dated 1947-12-05 in Hamgallery |
|
J5PDQ |
Civ |
John Saboe |
Hqs 364th Air Sv Gp, Itazuke AAB |
|
1947-12-05-list |
J6 — Tohoku (now JA7) |
|
J6AAG |
|
Bernard H, Coleman |
APO 468 Unit 1, c/o P.M., San Francisco, California |
|
QSL dated 1948-07-10 in W5KNE's collection |
|
J6BMC |
|
Thomas C. Bradley |
U.S. Technical Representative, Philco Corporatoin, 613 ACW SQDN, APO 919, Care P.M. San Francisco, Calif. |
|
LNDX WEB site QSL dated 1948-09-20 |
|
J6LPP |
|
J.P. (Joe) Meyash |
|
|
LNDX WEB site QSL dated 1948-11-07 |
|
J6STG |
M/Sgt |
Joseph Sosnowski |
Hqs 62nd Sig Bn School, APO 547 |
|
1947-12-05-list |
J7 — Hokkaido (now JA8) |
|
J7ABN |
|
Chunk |
|
|
LNDX WEB site QSL dated 1948-09-20 |
|
J7ELS |
Civ |
Elmer L. Stokes |
139th AACS Sig APO 919 |
|
1947-12-05-list |
The following list came from GHQ/SCAP microfich in the National Diet Library.
The microfich numbers are AG(B)-01603 D-3 and D-4.
The original doccuments were sent from HQ PHIL-RYUKYUS to CINCFE on Dec 16, 1947.
The following figure is a call area map at that time, extracted from QST Jan 1947 (TKS TO JA1BWA).
These 1×3 format call signs above had used until Dec. 31, 1948, and then changed to 2×2 format.
Here is a sample of the reallocation order, which states to change Major R. M. Lantz's call sign from J2GHQ to JA2AV (Microfich# AG(B)-01955 A-13).
Unfortunately, "Chart of Amateur Districts" and "List of Authorised Amateur Stations" are not attached in the microfich....