W2DHS APRS Search Page.

For my personal use only, format borrowed from N1BQ

Location of APRS Stations currently digipeating through the International Space Station
  http://www.ariss.net
 List of APRS Emergency Beacons recorded - last 24 hours
 Track, Location, Current Position and Messaging of APRS Stations
 Location(s) of call     
Wildcard permitted (Example: N1BQ*)
 View track for call    
Use specific CALL-SSID (no wildcard)

 For track displays on detailed maps go to the APRS Track Page.

 Messages from/to call 
Use specific CALL-SSID (no wildcard)
Find APRS Stations in vicinity of:
 By callsign:      
Use specific CALL-SSID (no wildcard)
 By zipcode (US only):
 
 By latitude  and longitude
(negative for southern and western hemispheres)
To see current APRS activity in specific regions on detailed maps
 Call in * - all stations, or N1*, or W1*,W2*,KA7*

Warning - large scale maps will have positions distorted somewhat!

APRS Weather Stations: View Weather Data - Use specific CALL-SSID (no wildcard)
 Table summary   from call for the last hours
 Graphic summary from call for the last hours
Find APRS Weather Stations in the vicinity of

 By Call

 By zip code (US only)

 By Latitude   and Longitude  (negative for southern and western hemispheres)
Display Raw Data for Specific Station - Use specific CALL-SSID (no wildcard)
Position -  for call start hrs ago, get hrs of data
Weather - for call start hrs ago, get hrs of data