AS15557
Societe Francaise Du Radiotelephone - SFR SA
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
- Isp allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
About SFR
SFR S.A. is a French telecommunications company.
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS15557 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) |
|---|---|---|
| 91.220.200.0/24 | AS15557, AS16347 | 2026-07-21 16:23:13 |
Network profile
Source: PeeringDB →Present at 11 internet exchanges: SFINX, Equinix New York, LINX LON1: Main, Equinix Paris: Equinix IX - PA Metro, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, France-IX AURA: lyonix-peering, AMS-IX, France-IX Paris, France-IX Marseille, LINX LON2, …
Web3 footprint
AS15557 hosts 2 observed decentralized-network nodes across 1 network. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.
AS15557 — global IP footprint
Cities where AS15557 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 AS15557 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 |
|---|---|---|
| 143.196.16.0/24 | 2,445,597 | 2026-07-21 15:23:07 |
| 143.196.17.0/24 | 2,445,080 | 2026-07-21 15:23:07 |
| 143.196.1.0/24 | 2,444,833 | 2026-07-21 15:23:07 |
| 143.196.0.0/24 | 2,444,177 | 2026-07-21 15:23:07 |
| 143.196.18.0/24 | 2,444,136 | 2026-07-21 15:23:07 |
| 143.196.124.0/24 | 2,443,935 | 2026-07-21 15:23:07 |
| 143.196.20.0/24 | 2,442,308 | 2026-07-21 15:23:07 |
| 143.196.21.0/24 | 2,441,970 | 2026-07-21 15:23:07 |
| 91.220.200.0/24 | 46,862 | 2026-07-21 15:23:07 |
| 88.143.255.0/24 | 12,481 | 2026-07-21 16:15:09 |
| 194.88.222.0/24 | 9,167 | 2026-07-21 16:12:20 |
| 195.202.8.0/24 | 7,906 | 2026-07-21 16:14:56 |
| 194.88.223.0/24 | 7,856 | 2026-07-21 16:12:20 |
| 88.143.254.0/24 | 7,610 | 2026-07-21 15:23:36 |
| 88.143.252.0/24 | 6,760 | 2026-07-21 16:13:39 |
| 143.196.144.0/24 | 6,462 | 2026-07-21 16:12:20 |
| 185.197.101.0/24 | 6,428 | 2026-07-21 16:12:20 |
| 143.196.159.0/24 | 6,414 | 2026-07-21 16:12:20 |
| 88.143.253.0/24 | 6,126 | 2026-07-21 15:23:55 |
| 195.190.156.0/24 | 6,093 | 2026-07-21 16:12:20 |
| 192.102.224.0/24 | 6,001 | 2026-07-21 16:12:53 |
| 193.56.37.0/24 | 5,311 | 2026-07-21 16:12:20 |
| 88.143.251.0/24 | 4,926 | 2026-07-21 15:23:54 |
| 79.80.0.0/12 | 4,502 | 2026-07-21 16:13:32 |
| 77.144.0.0/12 | 4,474 | 2026-07-21 16:13:58 |
| 77.192.0.0/12 | 4,437 | 2026-07-21 16:13:32 |
| 37.64.0.0/13 | 4,421 | 2026-07-21 16:13:58 |
| 86.64.0.0/12 | 4,414 | 2026-07-21 16:13:32 |
| 78.112.0.0/12 | 4,404 | 2026-07-21 16:13:32 |
| 93.0.0.0/11 | 4,383 | 2026-07-21 16:13:32 |
| 89.156.0.0/14 | 4,376 | 2026-07-21 16:13:32 |
| 109.0.0.0/11 | 4,369 | 2026-07-21 16:13:32 |
| 46.218.0.0/16 | 4,361 | 2026-07-21 16:12:20 |
| 89.224.0.0/14 | 4,347 | 2026-07-21 16:13:32 |
| 79.174.192.0/18 | 4,317 | 2026-07-21 16:12:20 |
| 77.142.0.0/16 | 4,311 | 2026-07-21 16:12:20 |
| 62.8.0.0/19 | 4,311 | 2026-07-21 16:12:20 |
| 77.104.0.0/18 | 4,309 | 2026-07-21 16:12:20 |
| 77.137.200.0/21 | 4,297 | 2026-07-21 16:12:20 |
| 77.137.208.0/20 | 4,286 | 2026-07-21 16:12:20 |
| 92.88.0.0/13 | 4,282 | 2026-07-21 16:13:32 |
| 46.35.0.0/19 | 4,281 | 2026-07-21 16:12:20 |
| 62.39.0.0/16 | 4,279 | 2026-07-21 16:12:20 |
| 81.64.0.0/14 | 4,275 | 2026-07-21 16:13:32 |
| 88.219.0.0/16 | 4,267 | 2026-07-21 16:12:20 |
| 62.106.128.0/17 | 4,265 | 2026-07-21 16:12:20 |
| 62.62.128.0/17 | 4,264 | 2026-07-21 16:12:20 |
| 77.128.0.0/13 | 4,264 | 2026-07-21 16:13:32 |
| 77.136.0.0/16 | 4,263 | 2026-07-21 16:12:20 |
| 91.151.112.0/20 | 4,262 | 2026-07-21 16:12:20 |
Showing top 50 of 150 announced prefixes by sample volume.
Frequently Asked Questions
What is AS15557?
AS15557 is an Autonomous System Number assigned to Societe Francaise Du Radiotelephone - SFR SA. 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 AS15557 announce?
AS15557 announces 15.81M IPv4 addresses distributed across 320 routed CIDR prefixes. The network is registered in France.
Who operates AS15557?
AS15557 is operated by Societe Francaise Du Radiotelephone - SFR SA. The organization is based in France. You can view all IP ranges and related ASNs on the organization page.
What country is AS15557 registered in?
AS15557 is registered in France. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
