Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Multiple-origin (MOAS) routing anomaly −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
About Neustar
Neustar, Inc. is an American technology company that provides real-time information and analytics for risk, digital performance, defense, telecommunications, entertainment, and marketing industries, and also provides clearinghouse and directory services to the global communications and Internet industries.
⚠ 13 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS19905 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 95.172.76.0/24 | AS19905, AS21734 | 2026-07-18 11:37:44 |
| 156.154.102.0/24 | AS12008, AS19905 | 2026-07-18 11:37:44 |
| 147.160.159.0/24 | AS19905, AS394965 | 2026-07-18 11:37:44 |
| 37.209.196.0/24 | AS12008, AS19905 | 2026-07-18 11:37:44 |
| 46.184.42.0/24 | AS19905, AS47794 | 2026-07-18 11:37:44 |
| 156.154.101.0/24 | AS12008, AS19905 | 2026-07-18 11:37:44 |
| 37.209.194.0/24 | AS12008, AS19905 | 2026-07-17 19:22:38 |
| 156.154.103.0/24 | AS12008, AS19905 | 2026-07-17 19:22:38 |
| 208.253.53.0/24 | AS19905, AS39997 | 2026-07-17 19:22:38 |
| 185.148.148.0/24 | AS19905, AS202982 | 2026-07-17 19:22:38 |
| 209.10.184.0/24 | AS19905, AS39997 | 2026-07-17 19:22:38 |
| 156.154.100.0/24 | AS12008, AS19905 | 2026-07-17 19:22:38 |
| 204.74.99.0/24 | AS12008, AS19905 | 2026-07-17 09:22:34 |
Network profile
Source: PeeringDB →Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS19905 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 209.163.69.0/24 | 168,800 | 2026-07-18 11:24:38 |
| 156.154.162.0/24 | 56,208 | 2026-07-18 10:52:37 |
| 204.74.100.0/24 | 55,855 | 2026-07-18 10:52:37 |
| 74.115.30.0/24 | 45,932 | 2026-07-18 10:54:40 |
| 192.235.216.0/24 | 39,849 | 2026-05-27 18:47:45 |
| 204.74.99.0/24 | 29,559 | 2026-07-16 09:24:27 |
| 156.154.217.0/24 | 19,744 | 2026-07-18 10:52:49 |
| 156.154.230.0/24 | 19,601 | 2026-07-18 10:52:36 |
| 156.154.219.0/24 | 17,435 | 2026-07-18 11:07:52 |
| 23.252.243.0/24 | 17,402 | 2026-07-12 18:06:47 |
| 206.206.198.0/24 | 17,306 | 2026-07-11 11:30:22 |
| 156.154.232.0/24 | 17,273 | 2026-07-18 11:07:52 |
| 156.154.212.0/24 | 15,339 | 2026-07-18 10:54:40 |
| 74.115.26.0/24 | 14,886 | 2026-07-18 10:52:06 |
| 156.154.229.0/24 | 14,659 | 2026-07-18 10:52:36 |
| 156.154.222.0/24 | 14,569 | 2026-07-18 10:52:48 |
| 156.154.216.0/24 | 14,563 | 2026-07-18 10:52:55 |
| 156.154.238.0/24 | 14,437 | 2026-07-18 10:52:36 |
| 156.154.178.0/24 | 14,128 | 2026-07-18 10:54:40 |
| 156.154.225.0/24 | 13,708 | 2026-07-18 10:52:56 |
| 156.154.234.0/24 | 12,656 | 2026-07-18 10:52:46 |
| 199.40.15.0/24 | 12,501 | 2026-07-18 10:53:02 |
| 74.115.27.0/24 | 11,256 | 2026-07-18 10:52:06 |
| 156.154.166.0/24 | 11,089 | 2026-07-18 10:52:55 |
| 206.83.161.0/24 | 9,989 | 2026-07-11 14:28:21 |
| 198.186.236.0/24 | 9,761 | 2026-07-18 10:52:36 |
| 83.111.28.0/24 | 9,501 | 2026-07-18 10:52:06 |
| 160.62.21.0/24 | 9,494 | 2026-06-04 07:29:08 |
| 213.5.173.0/24 | 9,478 | 2026-07-18 10:52:51 |
| 37.209.196.0/24 | 9,310 | 2026-06-03 12:08:18 |
| 74.115.24.0/24 | 9,137 | 2026-07-18 10:52:06 |
| 185.98.183.0/24 | 9,067 | 2026-07-18 10:52:36 |
| 156.154.224.0/24 | 8,958 | 2026-07-18 10:52:41 |
| 213.5.174.0/24 | 8,950 | 2026-07-18 10:52:51 |
| 91.102.237.0/24 | 8,617 | 2026-07-18 10:52:06 |
| 95.140.161.0/24 | 8,453 | 2026-07-18 10:52:18 |
| 185.148.148.0/24 | 8,339 | 2026-07-18 10:48:48 |
| 95.140.160.0/24 | 8,272 | 2026-07-18 10:52:18 |
| 91.102.236.0/24 | 8,246 | 2026-07-18 10:52:06 |
| 156.137.195.0/24 | 8,245 | 2026-07-18 10:52:36 |
| 91.102.233.0/24 | 8,052 | 2026-07-18 10:52:06 |
| 91.102.235.0/24 | 8,027 | 2026-07-18 10:52:06 |
| 209.163.68.0/24 | 7,838 | 2026-07-15 19:01:55 |
| 194.36.112.0/24 | 7,659 | 2026-07-07 15:38:36 |
| 37.209.192.0/24 | 7,576 | 2026-06-03 12:08:18 |
| 185.78.207.0/24 | 7,508 | 2026-07-06 22:26:42 |
| 23.252.255.0/24 | 7,051 | 2026-07-08 16:15:24 |
| 165.72.190.0/24 | 7,011 | 2026-07-18 10:52:36 |
| 206.83.16.0/24 | 6,902 | 2026-07-12 20:55:22 |
| 206.83.25.0/24 | 6,879 | 2026-07-12 20:55:22 |
Showing top 50 of 343 announced prefixes by sample volume.
Frequently Asked Questions
What is AS19905?
AS19905 is an Autonomous System Number assigned to Vercara, LLC. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS19905 announce?
AS19905 announces 55.0K IPv4 addresses distributed across 147 routed CIDR prefixes. The network is registered in United States.
Who operates AS19905?
AS19905 is operated by Vercara, LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS19905 registered in?
AS19905 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
