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Represents an unsolicited SIP INVITE request targeting a long numeric destination, with the request accepted for processing by the SIP server (100 Trying). While the Call-ID format appears consistent with legitimate SIP implementations, the absence of prior registration and the use of a PSTN-style numeric target indicate probing of call routing or gateway behavior rather than normal call setup. This behavior is commonly observed during early-stage toll-fraud reconnaissance or PBX routing validation.
| IP Address | Risk | Events | Sessions | Country | ASN | Last Seen |
|---|---|---|---|---|---|---|
| 173.245.76.90 | 98% | 130,810 | 94,598 | 🇺🇸 US | AS18779 | 2026-04-07 |
| 179.43.150.26 | 97% | 60,399 | 60,386 | 🇨🇭 CH | AS51852 | 2026-04-06 |
| 45.61.184.223 | 100% | 46,637 | 46,635 | 🇺🇸 US | AS53667 | 2026-04-13 |
| 64.95.96.70 | 98% | 44,699 | 40,448 | 🇳🇱 NL | AS32475 | 2026-03-03 |
| 104.243.45.175 | 100% | 33,143 | 17,359 | 🇺🇸 US | AS23470 | 2026-02-19 |
| 185.243.5.12 | 99% | 18,380 | 18,365 | 🇭🇰 HK | AS23470 |
| 2026-02-21 |
| 194.213.3.21 | 99% | 7,345 | 6,377 | 🇬🇧 GB | AS212027 | 2026-03-31 |
| 160.119.76.47 | 96% | 4,834 | 4,834 | 🇸🇨 SC | AS49870 | 2026-03-29 |
| 198.12.115.30 | 97% | 3,902 | 3,900 | 🇺🇸 US | AS36352 | 2026-03-27 |
| 77.83.240.228 | 98% | 3,876 | 2,588 | 🇺🇸 US | AS49870 | 2026-03-05 |
| 187.157.88.115 | 98% | 3,167 | 1,012 | 🇲🇽 MX | AS8151 | 2026-04-17 |
| 179.43.143.146 | 98% | 3,071 | 3,069 | 🇨🇭 CH | AS51852 | 2026-03-17 |
| 193.46.255.113 | 77% | 1,635 | 816 | 🇷🇴 RO | AS47890 | 2026-03-01 |
| 104.243.40.194 | 87% | 1,587 | 1,541 | 🇺🇸 US | AS23470 | 2026-02-23 |
| 85.203.44.25 | 98% | 1,258 | 1,258 | 🇸🇪 SE | AS42708 | 2026-02-18 |
| 87.98.243.61 | 95% | 1,163 | 499 | 🇫🇷 FR | AS16276 | 2026-02-18 |
| 107.189.12.131 | 87% | 948 | 948 | 🇩🇪 DE | AS53667 | 2026-04-07 |
| 172.110.223.34 | 94% | 714 | 714 | 🇵🇭 PH | AS47154 | 2026-04-16 |
| 185.243.5.22 | 87% | 653 | 397 | 🇭🇰 HK | AS23470 | 2026-04-15 |
| 45.61.186.45 | 96% | 647 | 647 | 🇺🇸 US | AS53667 | 2026-03-30 |