callsign.jp

Have you ever wondered how JA Ham's call sign system works?
This site unravels the tangled details. Thanks for visiting.

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Amateur Station

Past

An Overview of Amateur Call Signs—Past and Present in JA

Online Old Callbooks

Prewar Stations [in Japanese]

J-Prefix Stations during the Occupation

JA-Prefix Stations during the Occupation

KA-Prefix AMRS: Auxiliary Military Radio Stations

Present

The Enigma of Japanese Call Sign System (by Courtesy of Rin, JG1VGX)

"8j-station.info"—Special Event Stations in JA

Untold Facts [in Japanese]

Sequential Call Sign Update since 1980

Sequential Call Sign Update by the Telecommunications Bureaux [in Japanese]

License Data Search

License Data Search — API [in Japanese]

Future

Call Sign Forecast

ARISS School Contact Schedule Viewer

Recommendable Resources

G — RF-man's British Amateur Callsigns
http://www.geocities.com/rf-man/ukcalls.html

I — I0JX's Ham-radio callsign assignment in Italy
http://www.geocities.com/SiliconValley/Pines/5440/callsigns.html

SP — SP8DA's Amateur Radio Callsigns in Poland
http://www.qsl.net/sp8da/calls.html

U — NG3K's Territories, Prefixes and Suffixes of the Former USSR Amateur Radio Callsigns
http://www.ng3k.com/Cis/

VE — Industry Canada's RIC-9 - Call Sign Policy and Special Event Prefixes
http://strategis.ic.gc.ca/epic/internet/insmt-gst.nsf/vwGeneratedInterE/sf02102e.html

VE — VE1BC's The International Call Signs, Amateur Call Signs, Section 12
http://www.coastalradio.org.uk/spud12.pdf

W — FCC's Call Sign Systems
http://wireless.fcc.gov/services/amateur/callsigns/

9M — Guideline on the Allocation of Call Sign to the Amateur Radio Service
http://www.mcmc.gov.my/facts_figures/codes_gl/guidelines/callsign/Callsign-Feb04.pdf

Other Stations

Call Sign Allocation

Examples of Experimental Stations

International Designator Allocation

Prewar International Designator Allocation

3-Letter Call Signs [in Japanese]

Recommendable Resources [in Japanese]

Broadcasting Stations' Call Signs and Historical Data Room
~~http://www.miera.fm/radio/callsign/~~
http://miera.fun/radio/callsign/frame-1.html

Japan's Broadcasting Stations before the War
~~http://homepage1.nifty.com/OkaLab/DXing/~~
http://okalab.hotcom-web.com/index.html

Radio Stations List in the Past of the Nazaki Radio Transmitting Station
~~http://homepage2.nifty.com/nazaki-tx1/WEB/INDEX1.htm~~
http://x680.x0.com/nazaki-tx1/WEB/INDEX1.htm

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Ryota "Roy" Motobayashi <jj1wtl@jarl.com>