LoTW resources by HB9BZA Current stats: 170 million QSO's / 13.4 million QSL's / 20,500 reg. users

LoTW users list (20,687 calls in 317 current countries - updated on 11-MAY-2008)

Please note this is not an official list, as the ARRL never considered releasing such a list as useful. This is a compilation of information from many sources, including the DX-Cluster, DX bulletins, WEB sites and files received from other LoTW users. If you would like to help making this list even bigger, then your list of callsigns you got LoTW credits from is very welcome (see the "HOW TO HELP" section below).

I hope this list will encourage other hams to use the LoTW system by showing them that most current DXCC entities, including very rare ones (Ducie Is, Heard Is, North Korea,...), can already be credited for the DXCC with this system! Confirmations via LoTW can also be received in incredibly short times. As an example, I worked 3A2MW one day at 1852Z, uploaded my log just after this contact and he did the same at 1928Z. Result: a QSL in 36 minutes!!!

Another purpose of this list was to integrate it into my free packet radio/telnet client RXCLUS to make it possible to work more LoTW participants and to get more credits for your DXCC awards! The current version 8.3 is able to identify LoTW users, import your lotwreport.adi file and generate alarms based on it. If you are interested, you can get it from my download page.

How to help

Here is how to download this lotwreport.adi file:

• log into the LoTW users site
• click on "Your QSOs"
• click on " Download Report"
• in the next screen, make sure that no start date is mentioned (unless you already sent me a file and remember when; in this case you can put that date)
• click on "Download report"

Once you got the file, you can .

Even if you already sent your file some months ago, sending  the latest version right now could be a good idea, as new credits appear frequently due to the increasing number of users of the system!

Lists I receive are used only to extract the new calls; they are not made available to anybody else.

Number of known callsigns over the time

I started this project in March 2005. A major effort to build the list was done in July-August 2005, which brought the list to the 9000 calls level. After that time, with the help of over 200 contributors, the list continued to grow quite regularly, with an average of about 300 new calls each month.

My LoTW QSL rate over the time

Those statistics were established in January 2008 based on almost  15,000 QSO's I entered on the system for the years 1980-2004, mostly HF CW and phone (no digital modes and not so many US stations worked). In 2005, I started working LoTW members selectively, so my QSL rate became much higher but has no more statistical meaning. This graphic shows quite a good QSL rate for the past 10 years (around 15 %), an "acceptable" one till 1989 (mostly 4 to 7 %), and a very low one (just above 1 %) for the rest of the 80's.

Very old QSO's confirmed on LoTW 

• K4ZCP - KP4AOO: 1958-08-14
• SM3CCM - SM6CMU: 1960-12-21 (+1961-03-21; 1961-05-14; 1961-12-28)
• SM6CMU - SM5CSS: 1960-12-20
  

Tutorials

Croatian by 9A2JK	English (ARRL)	French by F5LEN	French by F6IRF
German by DM3ML	Hungarian by HA5UY	Italian by IK1UWL	Japanese by JA0DWY
Japanese by JA7IC	Polish by SP3FAR	Polish by SP7DQR	Romanian by YO9CWY
Russian by EU1SA	Slovenian by S50U	Spanish

Miscellaneous

• FAQ about this list
• The official Logbook of the World site ( the place to start if you are not already a LoTW user )
• Reviews on eHam.net
• Discussion group about LoTW on Yahoo! Groups (requires membership)

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