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
- Active-threat / abuse risk −12
- Cdn allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
About Imperva
Imperva, Inc. was an American cyber security software and services company which provided protection to enterprise data and application software.
⚠ 2 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS19551 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) |
|---|---|---|
| 103.231.26.0/24 | AS19551, AS151059 | 2026-11-08 21:53:28 |
| 45.162.0.0/24 | AS14187, AS19551 | 2026-11-08 05:08:22 |
Network profile
Source: PeeringDB →Present at 78 internet exchanges: MegaIX Dusseldorf, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, LINX LON1: Main, AMS-IX, JPIX TOKYO, Equinix Warsaw, IX.br (PTT.br) São Paulo: ATM/MPLA, MIX-IT, Equinix Chicago, Equinix San Jose, …
AS19551 — global IP footprint
Cities where AS19551 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS19551 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 |
|---|---|---|
| 198.143.41.0/24 | 8,212,236 | 2026-11-09 00:08:35 |
| 198.143.57.0/24 | 1,355,623 | 2026-10-09 19:53:58 |
| 45.60.184.0/24 | 433,647 | 2026-11-08 22:28:59 |
| 107.154.59.0/24 | 391,519 | 2026-11-09 00:54:06 |
| 131.125.180.0/24 | 318,094 | 2026-11-08 22:28:59 |
| 131.125.178.0/24 | 281,373 | 2026-11-08 22:28:59 |
| 131.125.179.0/24 | 275,948 | 2026-11-08 22:28:59 |
| 131.125.177.0/24 | 252,962 | 2026-11-08 22:28:59 |
| 131.125.166.0/24 | 226,990 | 2026-11-08 22:28:59 |
| 198.143.49.0/24 | 224,094 | 2026-11-09 00:50:41 |
| 131.125.169.0/24 | 218,790 | 2026-11-08 22:28:59 |
| 107.154.203.0/24 | 181,210 | 2026-11-09 00:54:06 |
| 198.143.45.0/24 | 174,992 | 2026-11-08 23:29:57 |
| 45.223.81.0/24 | 169,000 | 2026-11-09 00:48:42 |
| 107.154.58.0/24 | 163,094 | 2026-11-08 22:29:01 |
| 45.60.214.0/24 | 160,867 | 2026-11-08 22:29:02 |
| 45.223.80.0/24 | 152,096 | 2026-11-09 00:54:06 |
| 131.125.212.0/24 | 150,032 | 2026-11-09 00:54:07 |
| 107.154.98.0/24 | 145,028 | 2026-11-09 00:48:41 |
| 198.143.33.0/24 | 144,783 | 2026-11-08 22:29:02 |
| 131.125.183.0/24 | 135,640 | 2026-11-09 00:54:06 |
| 131.125.241.0/24 | 135,600 | 2026-11-09 00:54:06 |
| 131.125.147.0/24 | 132,739 | 2026-11-09 00:48:42 |
| 107.154.99.0/24 | 118,294 | 2026-11-09 00:48:41 |
| 107.154.188.0/24 | 117,670 | 2026-11-08 23:49:09 |
| 107.154.187.0/24 | 117,522 | 2026-11-08 23:49:09 |
| 131.125.136.0/24 | 117,152 | 2026-11-08 22:29:08 |
| 131.125.139.0/24 | 115,552 | 2026-11-09 00:54:06 |
| 45.223.231.0/24 | 110,391 | 2026-11-09 00:54:07 |
| 45.223.245.0/24 | 110,356 | 2026-11-09 00:54:07 |
| 45.223.232.0/24 | 110,347 | 2026-11-09 00:54:07 |
| 192.230.126.0/24 | 102,534 | 2026-11-09 00:48:42 |
| 45.223.251.0/24 | 102,013 | 2026-11-09 00:33:34 |
| 192.230.125.0/24 | 100,672 | 2026-11-09 00:54:07 |
| 103.77.142.0/24 | 97,745 | 2026-11-08 23:14:51 |
| 42.200.61.0/24 | 96,075 | 2026-11-08 23:29:56 |
| 107.154.25.0/24 | 95,400 | 2026-11-09 00:54:07 |
| 131.125.162.0/24 | 90,956 | 2026-11-09 00:54:07 |
| 131.125.194.0/24 | 86,296 | 2026-11-09 00:10:16 |
| 45.223.189.0/24 | 85,201 | 2026-11-09 00:10:16 |
| 103.225.240.0/24 | 85,174 | 2026-11-09 00:48:41 |
| 45.60.224.0/24 | 84,517 | 2026-11-08 23:13:07 |
| 103.225.241.0/24 | 84,437 | 2026-11-09 00:48:41 |
| 45.60.208.0/24 | 84,246 | 2026-11-08 23:13:07 |
| 198.143.34.0/24 | 83,904 | 2026-11-09 00:54:07 |
| 45.60.186.0/24 | 82,904 | 2026-11-08 23:13:07 |
| 45.60.187.0/24 | 82,589 | 2026-11-08 23:13:07 |
| 45.223.225.0/24 | 82,122 | 2026-11-09 00:54:07 |
| 192.230.85.0/24 | 81,751 | 2026-11-09 00:54:07 |
| 45.223.91.0/24 | 81,612 | 2026-11-09 00:54:07 |
Showing top 50 of 957 announced prefixes by sample volume.
Frequently Asked Questions
What is AS19551?
AS19551 is an Autonomous System Number assigned to Incapsula Inc. 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 AS19551 announce?
AS19551 announces 237.1K IPv4 addresses distributed across 208 routed CIDR prefixes. The network is registered in United States.
Who operates AS19551?
AS19551 is operated by Incapsula Inc. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS19551 registered in?
AS19551 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
