AS12775 — JPCINET The JPCINET Autonomous System

AS12775 announces 7 IPv4 prefixes covering 8,704 addresses and 1 IPv6 prefixes.

About this network

A netname with a two-digit year — 990525 — from before the registry settled on four.

What it's used for

• A British internet provider. 8,704 addresses across seven IPv4 prefixes, one IPv6 prefix, and 32 observed BGP neighbours.

Notable

• Five blocks in 212.113 carry the netname UK-JPCINET-990525; one more is JPCINET-SYSM.
• Two blocks, 46.231.164.0/23 and 46.231.166.0/24, are registered as UK-HYDRACOM-20110207 to Hydra Communications Ltd.
• The IPv6 announcement is 2a01:5400::/32.
• One sampled address answered, as 212-113-203-254.jpci-adsl.co.uk.

Interesting

• 990525 is 25 May 1999 written with a two-digit year, and every other dated netname in this sweep uses four. The convention changed, and records filed before it changed were never rewritten — so the registry contains both formats side by side, forever. Anyone parsing netnames for dates has to handle a field that silently changed shape in the middle.
• Hydra Communications blocks announced from JPC Infonet's AS, under their own registrant and their own 2011 date, is either an acquisition that never reached the registry or space carried for another operator. Both leave the same fingerprint, and only the operators know which it is.
• jpci-adsl.co.uk in reverse DNS marks the block as consumer broadband, and it uses a different domain from the company's registry name. Access networks routinely put subscriber addresses in a separate domain, so an address's reverse name says what it does rather than who owns it.

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

Announced prefixes

• 46.231.164.0/23
• 46.231.166.0/24
• 212.113.192.0/20
• 212.113.208.0/23
• 212.113.211.0/24
• 212.113.212.0/22
• 212.113.216.0/21
• 2a01:5400::/32

Upstream networks

• AS3257 GTT Communications Inc.
• AS25369 Hydra Communications Ltd
• AS6939 Hurricane Electric LLC
• AS48185 team.blue NV
• AS24482 SG.GS
• AS50300 CustodianDC Limited
• AS8218 Zayo Infrastructure France SA
• AS57463 NetIX Communications JSC
• AS21396 NetConnex Broadband Ltd.

Adjacent networks

• AS3257 GTT Communications Inc.
• AS25369 Hydra Communications Ltd
• AS6939 Hurricane Electric LLC
• AS48185 team.blue NV
• AS8218 Zayo Infrastructure France SA
• AS24482 SG.GS
• AS50300 CustodianDC Limited
• AS57463 NetIX Communications JSC
• AS21396 NetConnex Broadband Ltd.

Internet exchanges

• London Network Access Point — London, United Kingdom