AS15557 Societe Francaise Du Radiotelephone - SFR SA

AS15557Societe Francaise Du Radiotelephone - SFR SAISP

WHOIS Topology

France · RIPE NCCsfr.fr

Hosts top sitesHome broadbandMobile networkRPKI filtering

IPv4 addresses

15,829,504

147 announced prefixes

IPv6 addresses

1.17 × 10³¹

12 announced prefixes

BGP neighbours

…

CAIDA rank

#498

Customer cone 93 ASNs

Estimated users

8.91M

APNIC: 8.91M

RPKI

93% valid

0 invalid · 11 not covered

Average purity

224 sampled IPs

IXPs / facilities

11 / 6

Operator self-reported

History

How prefixes were announced and changed hands, registration changes, and outage or hijack incidents.

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IP ranges

Currently announced prefixes with their RIR registration and geolocation.

Prefix	RPKI	Registration	Geolocation	Addresses
93.0.0.0/11	Valid	FR-SFR-20071030RIPE	Dijon	2,097,152
109.0.0.0/11	Valid	FR-SFR-20090813RIPE	France	2,097,152
77.144.0.0/12	Valid	FR-SFR-20100831RIPE	Passy	1,048,576
77.192.0.0/12	Valid	FR-SFR-20061130RIPE	Poncins	1,048,576
78.112.0.0/12	Valid	FR-SFR-20070503RIPE	Aubervilliers	1,048,576
79.80.0.0/12	Valid	FR-SFR-20070717RIPE	Toulouse	1,048,576
86.64.0.0/12	Valid	FR-SFR-20050302RIPE	Cachan	1,048,576
37.64.0.0/13	Valid	FR-SFR-20120117RIPE	Paris	524,288
77.128.0.0/13	Valid	FR-SFR-20100831RIPE	France	524,288
84.96.0.0/13	Valid	FR-SFR-20040401RIPE	France	524,288
92.88.0.0/13	Valid	FR-SFR-20071017RIPE	Plaisir	524,288
81.64.0.0/14	Valid	FR-SFR-20020103RIPE	Massy	262,144
84.4.0.0/14	Valid	FR-SFR-20040903RIPE	France	262,144
85.168.0.0/14	Valid	FR-SFR-20041221RIPE	Tourcoing	262,144
88.136.0.0/14	Valid	N9UF-DYN-DSLRIPE	France	262,144
89.156.0.0/14	Valid	FR-SFR-20050726RIPE	Montmorency	262,144
89.224.0.0/14	Valid	FR-COMPLETEL-20060420RIPE	France	262,144
91.68.0.0/14	Valid	FR-SFR-20060811RIPE	Colombes	262,144
77.140.0.0/15	Valid	FR-NCNUMERICABLERIPE	Dijon	131,072
80.118.0.0/15	Valid	FR-SFR-20010830RIPE	Labbeville	131,072

/24 block profile

One square per /24: colour shows the risk type, shade how many addresses are flagged, stripes mark datacenter blocks. Click a square to see all 256 addresses.

/24s with data 271 / 61,834 （<1%） · flagged 142

No risk flagsDatacenter (no flags)ProxyVPNAbuse / blocklistTorDarker = more flagged addresses; dashed = block screen only

37.64.0.0/1355/2048 with data · 29 flagged

93.0.0.0/1130/8192 with data · 13 flagged

78.112.0.0/1230/4096 with data · 16 flagged

81.64.0.0/1416/1024 with data · 8 flagged

77.192.0.0/1215/4096 with data · 9 flagged

79.80.0.0/1215/4096 with data · 7 flagged

109.0.0.0/1113/8192 with data · 5 flagged

88.136.0.0/1412/1024 with data · 8 flagged

86.64.0.0/1210/4096 with data · 6 flagged

77.144.0.0/128/4096 with data · 5 flagged

85.168.0.0/148/1024 with data · 1 flagged

81.220.0.0/168/256 with data · 4 flagged

Hover a square for its numbers; click to see all 256 addresses.

Each prefix shows its 64 /24s with the most data. Built daily from lookups, neighbour sampling, public lists and block screening.

IP reputation

IPs from this network that CleanIP has analysed: purity, abuse reports and the riskiest /24 blocks.

Purity distribution

85–100 5370–84 12650–69 430–49 2

0.01%

Share of IPv4 reported or blocklisted

1,727

Listed IPs

224

Analysed IPs

Riskiest /24 blocks

/24 block	Flagged	Analysed
37.67.198.0/24	1	1
80.124.109.0/24	1	1
85.169.254.0/24	1	1

Flagged = VPN, proxy, Tor or purity below 50. Samples come from user lookups and neighbour sampling, not every address in this network.

Geography

Where this network’s IPv4 addresses are located.

France99.9%
Guadeloupe0.1%
Martinique0.0%
Réunion0.0%
Russia0.0%

Scope: Single country
In registered country: 99.9%

Estimated by sampling IPv4 ranges against a geolocation database.

Traffic observation

AS15557 · Last 7 days

Mobile vs. Desktop

Desktop47.7%Mobile52.2%

Bot vs. Human

Human86.3%Bot13.7%

Adoption & Usage

Adoption and usage of key protocols

Internet Protocol (IP) Version

IPv433.5%IPv666.5%

HTTP Version

HTTP/1.x

12.0%HTTP/2

56.8%HTTP/3

31.1%

TLS Version

TLS 1.0/1.1< 0.1%TLS 1.24.4%TLS 1.364.1%QUIC31.5%

Security & Attacks

Insights into network and application layer attack traffic

Layer 7 Attacks

GET

81.9%POST

13.9%HEAD

2.9%OPTIONS

0.8%PATCH

0.4%Other

0.1%

BGP Announcements

Hourly BGP route announcements over the last 7 days

626,208

7-day total

28,308

Hourly peak

Data: Cloudflare Radar, licensed under CC BY-NC 4.0

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BGP upstreams and neighbours

AS15557Standalone page

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WHOIS record

The registry’s record for this AS number: holder, status, dates and contacts.

Sources

Where the information on this page comes from and when it was updated.

Information	Source	Updated
Registered country	RIR daily delegation statistics	2026-10-20
Registered address & allocation date	RIR registration data (RDAP)	2026-10-03
Organization & company country	AS-to-organization data	2026-10-21
Network type	CleanIP ASN canon	2026-10-20
Exchanges & facilities	Operator self-reported interconnection data	2026-10-21
Announced prefixes & BGP neighbours	Public BGP routing data	2026-10-22
IPv4 geography	Geolocation database	—
RPKI validation	RPKI ROA validation data	2026-10-22
Rank & customer cone	CAIDA AS Rank	2026-10-01
Estimated users (APNIC)	APNIC Labs user estimates	2026-10-19
Network tags	Public routing data community tags	2026-10-21
IP reputation	CleanIP lookups and neighbour sampling	—

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Multi-source cross-checks · In-house reputation data · Real data only