Amateur Radio Ham URL Callbook
Andorra QSL Bureau (C3)
Belgian Callbook (ON)
Brazilian Callbook - Guia do Radioamador
Buckmaster's World Wide HamCall (tm) Server
Bulgarian Callbook (LZ)
Callbook ARI Italiano
Callbook de Nicaragua
Callbook of HB9-OMs
Callbook Thailand 1998 by HS2JFW
CIS Callsign Database
CRAQ Callbook
Croatian CallBook OnLine
Czech Republic Callbook (OK)
DB0SDX QSL DataBases
DK0TUI: QSL Information for HAM's
DK0TUI: Database Search for Egypt (SU) - Callsigns
DK0TUI: Inofficial German (DL) Callbook
DK0TUI: Radio Amateur Contest Schedules
DK0TUI: Taiwan Callbook Database Search
Dutch Callbook (PA)
EA5EYJ Web Site - QSL Total
Egypt Callbook
El Salvador - CRAS Callbook (YS)
ES-Callbook Stand: May 09, 1997
Estonian Callbook 1998 by ES5AAW
EY Callbook - Tajikistan
FCC Callsign Database
FIRAC Rapid Callbook
Greek Radio Amateur Callbook
Grupo CW de Sergipe - Callbook
Guatemala - CRAG Callbook (TG)
Guayaquil Radio Club (GRC) Callbook
Guernsey Amateur Radio Callbook
HAM Thai CallBook
HL On Line CallBook
Iceland Callbook (TF) - Félagatal Í.R.A. 1998
Latvian (YL) Radio Amateurs (incomplete list)
Lithuanian (LY) Callbook '98
LX - Callbook
MARTS Callbook - Malaysia (9M2)
Mongolian Callbook (JT)
One-by-One CallSign DataBase
Poland CallBook Database
QRZ Home Page
QSL - Bureau of CIS, ex-USSR
QSL Info Database
QSL Info Database Search
QSL Info System by IK4LZH
QSL.net - Master Index
Quick QSL Manager Lookup
Register of Radiocommunication Licences: Licence Searches (VK)
RL - Luxembourg Callbook
S5 Radioamateurs CallBook of Slovenia
SARL - South African Callbook
SM5ARL QSL Information
SV Callbook
Taiwan Ham Radio Callbook
Tampa CallBook Server
The Australian Amateur Radio Callsign Database
The Canadian Amateur Radio Callsign Database
The Finnish Callbook 1997 - Finland
The Golist, QSL Manager List
The VP9 Callbook - The Radio Society of Bermuda
The World Radio Amateur Directory
TK5EP's Callbook
U.S. Amateur Radio Callsign Lookup Page
U.S. Callbook Search by WM7D
WECA - Callbook and FCC Info
WM7D's Callsign Database
WWW-Callbook-SP
YO Call Book On Line! - Romanian Amateur Radio Federation
Yugoslovian Callbook (YU)