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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% | 94,143 | 57,931 | 🇺🇸 US | AS18779 | 2026-03-05 |
| 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 |
| 198.143.149.250 | 99% | 12,079 | 5,067 | 🇺🇸 US | AS32475 | 2026-03-05 |
| 91.208.92.163 | 99% | 6,828 | 1,692 | 🇬🇧 GB | AS212027 | 2026-03-04 |
| 77.83.240.228 | 98% | 3,876 | 2,588 | 🇺🇸 US | AS49870 | 2026-03-05 |
| 187.157.88.115 | 98% | 3,114 | 959 | 🇲🇽 MX | AS8151 | 2026-02-26 |
| 2.57.121.71 | 96% | 2,132 | 205 | 🇷🇴 RO | AS47890 | 2026-02-11 |
| 193.46.255.113 | 98% | 1,635 | 816 | 🇷🇴 RO | AS47890 | 2026-03-01 |
| 213.162.209.71 | 94% | 1,610 | 113 | 🇪🇸 ES | AS13287 | 2026-02-09 |
| 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 |
| 194.213.3.21 | 98% | 1,249 | 281 | 🇬🇧 GB | AS212027 | 2026-03-04 |
| 87.98.243.61 | 95% | 1,163 | 499 | 🇫🇷 FR | AS16276 | 2026-02-18 |
| 185.243.5.22 | 85% | 469 | 213 | 🇭🇰 HK | AS23470 | 2026-03-04 |
| 172.110.223.29 | 93% | 352 | 242 | 🇭🇰 HK | AS23470 | 2026-03-03 |
| 172.110.223.11 | 97% | 299 | 178 | 🇭🇰 HK | AS23470 | 2026-02-21 |
| 160.119.76.47 | 98% | 270 | 270 | 🇸🇨 SC | AS49870 | 2026-03-05 |
| 87.246.54.224 | 67% | 238 | 4 | 🇧🇬 BG | AS205352 | 2026-03-01 |