19 Aug 19 Added APNKMX for KAM-XL and Added APAT51 for Anytone AT-D578UV APRS radio 16 Jul 19 expanded APMGxx to cover PiCrumbs and MiniGate 24 Jun 19 Added APTCMA for CAPI tracker - PU1CMA Brazil 4 Jun 19 added APATxx for Anytone 8 May 19 added APQTHx for W8WJB's QTH.app 12 Mar 19 added APLIGx for LightAPRS 3 Dec 18 added APRARX forVK5QI's radiosonde tracking 8 Nov 18 added APELKx for WB8ELK balloons 24 Oct 18 added APGBLN for NW5W's GoBalloon 18 Apr 18 added APBKxx for PY5BK Bravo Tracker in Brazil 7 Mar 18 added APERSx Runner tracking by Jason,KG7YKZ 8 Jan 18 added APTCHE PU3IKE in Brazil TcheTracker/Tcheduino 12 Dec 17 Added APHWxx for use in "HamWAN 11 Dec 17 Added APDVxx for OE6PLD's SSTV with APRS status exchange 20 Nov 17 added APPICO DB1NTO' PicoAPRS 18 Oct 17 Added APBMxx BrandMeister DMR Server for R3ABM 25 Sep 17 added APP6xx for APRSlib 05 Sep 17 Chged APTAxx to APTBxx for TinyAPRS by BG5HHP 17 Aug 17 Added APOCSG for POCSAG - N0AGI's APRS to Pagers 21 Jun 17 Added APCSMS for Cosmos (used for sending commands @USNA 08 Jun 17 Added APPMxx for DL1MX's RTL-SDR pytohon Igate 01 Jun 17 added APOFF digi off on PSAT,PSAT2 and APDTMF digi off mode on QIKCOM2 and DTMF ON and APRSON digi ON for PSAT and APDIGI digi ON for PSAT2 and QIKCOM-2 and APSAT digi ON for QIKCOM-1 20 Mar 17 added APTBxx for TinyAPRS by BG5HHP 06 Feb 17 added APIExx for W7KMV's PiAPRS system 25 Jan 17 added APSFxx F5OPV embedded devices - was APZ40 16 Dec 16 added APYSxx for W2GMD's Python APRS 14 Nov 16 Added APINxx for PinPoint by AB0WV 09 Nov 16 added APNICx for SQ5EKU http://sq5eku.blogspot.com/ 24 Oct 16 added APTKPT TrackPoint N0LP, removed APZTKP 24 Aug 16 added APK004 for Kenwood THD-74 29 Apr 16 added APFPRS for FreeDV by Jeroen PE1RXQ 25 Feb 16 Added APCDS0 for Leon Lessing ZS6LMG's cell tracker 21 Jan 16 added APDNOx for APRSduino by DO3SWW In 2015 Added APSTPO,APAND1,APDRxx,APZ247,APHTxx,APMTxx,APZMAJ APB2MF,APR2MF,APAVT5 In APRS, the AX.25 Destination address is not used for packet routing as is normally done in AX.25. So APRS uses it for two things. The initial APxxxx is used as a group identifier to make APRS packets instanantly recognizable on shared channels. Most applicaitons ignore all non APRS packets. The remaining 4 xxxx bytes of the field are available to indicate the software version number or application. The following applications have requested a TOCALL number series: APn 3rd digit is a number AP1WWX TAPR T-238+ WX station AP1MAJ Martyn M1MAJ DeLorme inReach Tracker AP4Rxy APRS4R software interface APnnnD Painter Engineering uSmartDigi D-Gate DSTAR Gateway APnnnU Painter Engineering uSmartDigi Digipeater APA APAFxx AFilter. APAGxx AGATE APAGWx SV2AGW's AGWtracker APALxx Alinco DR-620/635 internal TNC digis. "Hachi" ,JF1AJE APAXxx AFilterX. APAHxx AHub APAND1 APRSdroid (pre-release) http://aprsdroid.org/ APAMxx Altus Metrum GPS trackers APATxx for Anytone. 81 for 878 HT APAT51 for Anytone AT-D578UV APRS mobile radio APAVT5 SainSonic AP510 which is a 1watt tracker APAWxx AGWPE APB APBxxx Beacons or Rabbit TCPIP micros? APB2MF DL2MF - MF2APRS Radiosonde for balloons APBLxx BigRedBee BeeLine APBLO MOdel Rocketry K7RKT APBKxx PY5BK Bravo Tracker in Brazil APBPQx John G8BPQ Digipeater/IGate APBMxx BrandMeister DMR Server for R3ABM APC APCxxx Cellular applications APCBBx VE7UDP Blackberry Applications APCDS0 Leon Lessing ZS6LMG's cell tracker APCLEY EYTraker GPRS/GSM tracker by ZS6EY APCLWX EYWeather GPRS/GSM WX station by ZS6EY APCLEZ Telit EZ10 GSM application ZS6CEY APCSMS for Cosmos (used for sending commands @USNA) APCWP8 John GM7HHB, WinphoneAPRS APCYxx Cybiko applications APD APD4xx UP4DAR platform APDDxx DV-RPTR Modem and Control Center Software APDFxx Automatic DF units APDGxx D-Star Gateways by G4KLX ircDDB APDHxx WinDV (DUTCH*Star DV Node for Windows) APDInn DIXPRS - Bela, HA5DI APDIGI Used by PSAT2 to indicate the digi is ON APDIGI digi ON for PSAT2 and QIKCOM-2 APDKxx KI4LKF g2_ircddb Dstar gateway software APDNOx APRSduino by DO3SWW APDOxx ON8JL Standalone DStar Node APDPRS D-Star originated posits APDRxx APRSdroid Android App http://aprsdroid.org/ APDSXX SP9UOB for dsDigi and ds-tracker APDTxx APRStouch Tone (DTMF) APDTMF digi off mode on QIKCOM2 and DTMF ON APDUxx U2APRS by JA7UDE APDVxx OE6PLD's SSTV with APRS status exchange APDWxx DireWolf, WB2OSZ APE APExxx Telemetry devices APECAN Pecan Pico APRS Balloon Tracker APELKx WB8ELK balloons APERXQ Experimental tracker by PE1RXQ APERSx Runner tracking by Jason,KG7YKZ APF APFxxx Firenet APFGxx Flood Gage (KP4DJT) APFIxx for APRS.FI OH7LZB, Hessu APFPRS for FreeDV by Jeroen PE1RXQ APG APGxxx Gates, etc APGOxx for AA3NJ PDA application APGBLN for NW5W's GoBalloon APH APHKxx for LA1BR tracker/digipeater APHAXn SM2APRS by PY2UEP APHTxx HMTracker by IU0AAC APHWxx for use in "HamWAN API APICQx for ICQ APICxx HA9MCQ's Pic IGate APIExx W7KMV's PiAPRS system APINxx PinPoint by AB0WV APJ APJAxx JavAPRS APJExx JeAPRS APJIxx jAPRSIgate APJSxx javAPRSSrvr APJYnn KA2DDO Yet another APRS system APK APK0xx Kenwood TH-D7's APK003 Kenwood TH-D72 APK004 Kenwood TH-D74 APK1xx Kenwood D700's APK102 Kenwood D710 APKRAM KRAMstuff.com - Mark. G7LEU APL APLIGx LightAPRS - TA2MUN and TA9OHC APLQRU Charlie - QRU Server APLMxx WA0TQG transceiver controller APM APMxxx MacAPRS, APMGxx PiCrumbs and MiniGate - Alex, AB0TJ APMIxx SQ3PLX http://microsat.com.pl/ APMTxx LZ1PPL for tracker APN APNxxx Network nodes, digis, etc APN3xx Kantronics KPC-3 rom versions APN9xx Kantronics KPC-9612 Roms APNAxx WB6ZSU's APRServe APNDxx DIGI_NED APNICx SQ5EKU http://sq5eku.blogspot.com/ APNK01 Kenwood D700 (APK101) type APNK80 KAM version 8.0 APNKMP KAM+ APNKMX KAM-XL APNMxx MJF TNC roms APNPxx Paccom TNC roms APNTxx SV2AGW's TNT tnc as a digi APNUxx UIdigi APNXxx TNC-X (K6DBG) APNWxx SQ3FYK.com WX/Digi and SQ3PLX http://microsat.com.pl/ APO APRSpoint APOFF Used by PSAT and PSAT2 to indicate the digi is OFF APOLUx for OSCAR satellites for AMSAT-LU by LU9DO APOAxx OpenAPRS - Greg Carter APOCSG For N0AGI's APRS to POCSAG project APOTxx Open Track APOD1w Open Track with 1 wire WX APOU2k Open Track for Ultimeter APOZxx www.KissOZ.dk Tracker. OZ1EKD and OZ7HVO APP APP6xx for APRSlib APPICx DB1NTO' PicoAPRS APPMxx DL1MX's RTL-SDR pytohon Igate APPTxx KetaiTracker by JF6LZE, Takeki (msg capable) APQ APQxxx Earthquake data APQTHx W8WJB's QTH.app APR APR8xx APRSdos versions 800+ APR2MF DL2MF - MF2APRS Radiosonde WX reporting APRARX VK5QI's radiosonde tracking APRDxx APRSdata, APRSdr APRGxx aprsg igate software, OH2GVE APRHH2 HamHud 2 APRKxx APRStk APRNOW W5GGW ipad application APRRTx RPC electronics APRS Generic, (obsolete. Digis should use APNxxx instead) APRSON Used by PSAT to indicate the DIGI is ON APRXxx >40 APRSmax APRXxx <39 for OH2MQK's igate APRTLM used in MIM's and Mic-lites, etc APRtfc APRStraffic APRSTx APRStt (Touch tone) APS APSxxx APRS+SA, etc APSARx ZL4FOX's SARTRACK APSAT digi ON for QIKCOM-1 APSCxx aprsc APRS-IS core server (OH7LZB, OH2MQK) APSFxx F5OPV embedded devices - was APZ40 APSK63 APRS Messenger -over-PSK63 APSK25 APRS Messenger GMSK-250 APSMSx Paul Dufresne's SMSGTE - SMS Gateway APSTMx for W7QO's Balloon trackers APSTPO for N0AGI Satellite Tracking and Operations APT APT2xx Tiny Track II APT3xx Tiny Track III APTAxx K4ATM's tiny track APTBxx TinyAPRS by BG5HHP Was APTAxx till Sep 2017 APTCHE PU3IKE in Brazil TcheTracker/Tcheduino APTCMA CAPI tracker - PU1CMA Brazil APTIGR TigerTrack APTKPT TrackPoint N0LP APTTxx Tiny Track APTWxx Byons WXTrac APTVxx for ATV/APRN and SSTV applications APU APU1xx UIview 16 bit applications APU2xx UIview 32 bit apps APU3xx UIview terminal program APUDRx NW Digital Radio's UDR (APRS/Dstar) APV APVxxx Voice over Internet applications APVRxx for IRLP APVLxx for I-LINK APVExx for ECHO link APW APWxxx WinAPRS, etc APWAxx APRSISCE Android version APWSxx DF4IAN's WS2300 WX station APWMxx APRSISCE KJ4ERJ APWWxx APRSISCE win32 version APX APXnnn Xastir APXRnn Xrouter APY APYxxx Yeasu APY008 Yaesu VX-8 series APY350 Yaesu FTM-350 series APYTxx for YagTracker APYSxx for W2GMD's Python APRS APZ APZxxx Experimental APZ247 for UPRS NR0Q APZ0xx Xastir (old versions. See APX) APZMAJ Martyn M1MAJ DeLorme inReach Tracker APZMDR for HaMDR trackers - hessu * hes.iki.fi] APZPAD Smart Palm APZTKP TrackPoint, Nick N0LP (Balloon tracking)(depricated) APZWIT MAP27 radio (Mountain Rescue) EI7IG APZWKR GM1WKR NetSked application Authors with similar alphabetic requirements are encouraged to share their address space with other software. Work out agreements amongst yourselves and keep me informed. REGISTERED ALTNETS: ------------------- ALTNETS are uses of the AX-25 tocall to distinguish specialized traffic that may be flowing on the APRS-IS, but that are not intended to be part of normal APRS distribution to all normal APRS software operating in normal (default) modes. Proper APRS software that honors this design are supposed to IGNORE all ALTNETS unless the particular operator has selected an ALTNET to monitor for. An example is when testing; an author may want to transmit objects all over his map for on-air testing, but does not want these to clutter everyone's maps or databases. He could use the ALTNET of "TEST" and client APRS software that respects the ALTNET concept should ignore these packets. An ALTNET is defined to be ANY AX.25 TOCALL that is NOT one of the normal APRS TOCALL's. The normal TOCALL's that APRS is supposed to process are: ALL, BEACON, CQ, QST, GPSxxx and of course APxxxx. The following is a list of ALTNETS that may be of interest to other users. This list is by no means complete, since ANY combination of characters other than APxxxx are considered an ALTNET. But this list can give consisntecy to ALTNETS that may be using the global APRS-IS and need some special recognition. Here are some ideas: SATERN - Salvation Army Altnet AFMARS - Airforce Mars AMARS - Army Mars