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
- Enterprise allocation +4
- Trust score 57 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 15 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS31133 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) |
|---|---|---|
| 188.162.152.0/22 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 178.178.253.0/24 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 178.178.252.0/24 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 85.26.189.0/24 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 188.162.136.0/23 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 178.178.254.0/23 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 188.162.161.0/24 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 83.149.28.0/24 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 85.26.185.0/24 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 188.162.129.0/24 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 188.162.146.0/23 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 188.162.133.0/24 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 178.178.251.0/24 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 109.106.199.0/24 | AS31133, AS31163 | 2026-09-10 15:10:46 |
| 188.162.162.0/24 | AS31133, AS31163 | 2026-09-10 14:40:46 |
Network profile
Source: PeeringDB →Present at 20 internet exchanges: DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, MSK-IX Moscow: MSK-IX peering network, AMS-IX, Netnod Stockholm GREEN -- MTU4470: STH-A -- MTU4470, Netnod Stockholm GREEN -- MTU1500: STH-A -- MTU1500, Netnod Stockholm BLUE -- MTU1500: STH-B -- MTU1500, Netnod Stockholm BLUE -- MTU4470: STH-B -- MTU4470, DE-CIX New York: DE-CIX New York Peering LAN, DE-CIX Marseille: DE-CIX Marseille Peering LAN, NL-ix: Main, …
AS31133 — global IP footprint
Cities where AS31133 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 AS31133 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 |
|---|---|---|
| 83.169.194.0/24 | 256,359 | 2026-09-10 18:08:46 |
| 188.162.76.0/23 | 129,673 | 2026-09-10 18:07:53 |
| 188.162.72.0/22 | 129,134 | 2026-09-10 18:07:53 |
| 178.178.126.0/24 | 94,024 | 2026-09-10 18:08:55 |
| 188.162.14.0/23 | 86,264 | 2026-09-10 18:07:53 |
| 188.162.80.0/24 | 82,173 | 2026-09-10 18:07:53 |
| 37.29.6.0/24 | 69,501 | 2026-09-10 18:08:55 |
| 31.173.128.0/24 | 64,978 | 2026-09-10 18:08:55 |
| 31.173.144.0/24 | 61,593 | 2026-09-10 18:08:55 |
| 31.173.149.0/24 | 61,448 | 2026-09-10 18:08:55 |
| 31.173.172.0/24 | 58,138 | 2026-09-10 18:08:55 |
| 31.173.156.0/24 | 57,300 | 2026-09-10 18:08:55 |
| 83.169.193.0/24 | 56,938 | 2026-09-10 18:08:46 |
| 31.173.168.0/24 | 56,104 | 2026-09-10 18:08:55 |
| 128.204.66.0/24 | 55,488 | 2026-09-10 18:08:26 |
| 31.173.140.0/24 | 55,374 | 2026-09-10 18:08:55 |
| 31.173.141.0/24 | 55,329 | 2026-09-10 18:08:55 |
| 31.173.169.0/24 | 55,256 | 2026-09-10 18:08:55 |
| 31.173.171.0/24 | 55,242 | 2026-09-10 18:08:55 |
| 31.173.153.0/24 | 55,221 | 2026-09-10 18:08:55 |
| 31.173.155.0/24 | 55,098 | 2026-09-10 18:08:55 |
| 31.173.159.0/24 | 55,046 | 2026-09-10 18:08:55 |
| 37.29.97.0/24 | 54,960 | 2026-09-10 18:08:55 |
| 31.173.139.0/24 | 54,521 | 2026-09-10 18:08:55 |
| 31.173.154.0/24 | 54,248 | 2026-09-10 18:08:55 |
| 31.173.151.0/24 | 54,000 | 2026-09-10 18:08:55 |
| 37.29.96.0/24 | 53,917 | 2026-09-10 18:08:55 |
| 31.173.148.0/24 | 53,825 | 2026-09-10 18:08:55 |
| 31.173.152.0/24 | 53,556 | 2026-09-10 18:08:46 |
| 31.173.160.0/22 | 52,976 | 2026-09-10 18:07:33 |
| 37.29.8.0/24 | 52,491 | 2026-09-10 18:08:55 |
| 31.173.130.0/23 | 52,413 | 2026-09-10 18:07:48 |
| 95.141.237.0/24 | 52,081 | 2026-09-10 18:08:55 |
| 95.141.239.0/24 | 52,067 | 2026-09-10 18:08:55 |
| 95.141.238.0/24 | 52,055 | 2026-09-10 18:08:55 |
| 95.141.233.0/24 | 52,050 | 2026-09-10 18:08:55 |
| 95.141.232.0/24 | 52,034 | 2026-09-10 18:08:55 |
| 95.141.234.0/24 | 52,022 | 2026-09-10 18:08:55 |
| 95.141.235.0/24 | 52,007 | 2026-09-10 18:08:55 |
| 95.141.230.0/24 | 51,995 | 2026-09-10 18:08:55 |
| 95.141.236.0/24 | 51,994 | 2026-09-10 18:08:55 |
| 95.141.229.0/24 | 51,993 | 2026-09-10 18:08:55 |
| 95.141.228.0/24 | 51,985 | 2026-09-10 18:08:55 |
| 95.141.227.0/24 | 51,971 | 2026-09-10 18:08:55 |
| 95.141.225.0/24 | 51,970 | 2026-09-10 18:08:55 |
| 95.141.231.0/24 | 51,959 | 2026-09-10 18:08:55 |
| 83.149.21.0/24 | 51,468 | 2026-09-10 18:08:55 |
| 31.173.150.0/24 | 51,458 | 2026-09-10 18:07:51 |
| 83.169.201.0/24 | 50,571 | 2026-09-10 18:07:54 |
| 109.95.229.0/24 | 50,316 | 2026-09-10 18:08:55 |
Showing top 50 of 557 announced prefixes by sample volume.
Frequently Asked Questions
What is AS31133?
AS31133 is an Autonomous System Number assigned to PJSC MegaFon. 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 AS31133 announce?
AS31133 announces 373.0K IPv4 addresses distributed across 197 routed CIDR prefixes. The network is registered in Russia.
Who operates AS31133?
AS31133 is operated by PJSC MegaFon. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.
What country is AS31133 registered in?
AS31133 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
