AS12566 — SFR-BUSINESS-TEAM SFR Business Team

AS12566 announces 8 IPv4 prefixes covering 19,712 addresses and 0 IPv6 prefixes.

About this network

Five company names in one inventory, one of them recorded as a parenthetical aside inside a registry contact.

What it's used for

• Business connectivity for a French carrier. 19,712 addresses in nine IPv4 prefixes, one observed BGP neighbour, and no IPv6 announced.

Notable

• The netnames span FR-SFR-990707, FR-SFR-20051110, FR-SFR-20090202 and FR-SFR-20131106.
• One block is SFR-Altice-France and two are FR-JET-ON-LINE, registered through a JETMULTIMEDIA NOC.
• The technical contact on the 2005 block is named SFR Tech Contact (formerly Neuf Cegetel / LDCOM Networks) — the parenthesis is part of the recorded name.
• Reverse names come from two eras: copernic-vr2177.sfr-sh.net, external-ip-212-23-183-254.sfr-sh.net and sqlsrv1-nat.jetonline.fr.

Interesting

• That contact name is the best kind of accidental documentation. Somebody updating the record could not bring themselves to discard the old names, so they appended them in brackets, and a corporate history that took three mergers now lives in a field meant to hold a person's job title.
• sqlsrv1-nat names a database server and the fact that it sits behind address translation. Reverse DNS is public, so a name like that tells anyone looking what a machine is before they have to probe it — the kind of detail worth generating rather than writing by hand.
• One neighbour for nearly twenty thousand addresses places this inside a larger carrier rather than at the edge of the Internet. It is a business unit's AS, reached through its parent.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 87.255.128.0/19
• 95.181.220.0/22
• 185.39.216.0/22
• 194.153.88.0/23
• 194.153.90.0/24
• 194.153.92.0/24
• 194.153.97.0/24
• 212.23.160.0/19

Upstream networks

• AS15557 SFR SA

Adjacent networks

• AS15557 SFR SA