AS12496 — IDNET IDNet

AS12496 announces 6 IPv4 prefixes covering 20,992 addresses and 2 IPv6 prefixes.

About this network

A British ISP with 86 neighbours, a 1997 netname from a company it absorbed, and a customer's broadcast address named in full.

What it's used for

• Residential and business internet access. 20,992 addresses in six IPv4 prefixes, two IPv6 prefixes, and 86 observed BGP neighbours.

Notable

• The company's own netnames are dated: UK-IDNET-990615 in YYMMDD, then 20040308, 20061108 and 20080409 in YYYYMMDD.
• 195.72.33.0/24 is netname UK-WORLDINTERNET-970609, registered to INDEXSCOPE LIMITED — a 1997 record for a company of a different name entirely.
• 91.90.171.0/24 belongs to VPW Systems (UK) Ltd, netname VPWSYSUK-PD1, and its reverse names end .pd.vpwsys.net — the same PD as the netname.
• One of those addresses is named core-a-broadcast.pd.vpwsys.net.
• Subscriber addresses read cust255-dsl91-135-7.idnet.net.

Interesting

• UK-WORLDINTERNET-970609 is the oldest thing in this inventory by nearly two years, and it names neither the announcer nor the registrant. Three companies have touched that /24 and the netname remembers the first.
• Labelling a broadcast address by name, and marking the router as core-a, is a hand-maintained zone. Nobody generates core-a-broadcast; somebody typed it so that the next person to see the address in a log would not have to work it out.
• 86 neighbours for 21,000 addresses is a British ISP that peers heavily, which is what the London exchanges made both possible and expected.

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

Announced prefixes

• 91.90.171.0/24
• 91.135.0.0/20
• 93.89.128.0/20
• 195.72.33.0/24
• 212.69.32.0/19
• 217.144.80.0/20
• 2001:678:b60::/48
• 2a02:390::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS24482 SG.GS
• AS48185 team.blue NV
• AS37721 Virtual Technologies & Solutions
• AS33891 Core-Backbone GmbH
• AS50300 CustodianDC Limited
• AS48362 Stadtwerke Feldkirch
• AS8218 Zayo Infrastructure France SA
• AS42708 Glesys AB
• AS57463 NetIX Communications JSC
• AS12552 GlobalConnect AB
• AS3741 Dimension Data
• AS37100 SEACOM Limited
• AS9002 RETN Limited
• AS17639 Converge ICT Solutions Inc.
• AS213241 TECHIT.BE SRL
• AS29075 IELO-LIAZO SERVICES SAS
• AS13030 Init7 (Switzerland) Ltd.

Downstream networks

• AS59617 Andy Davidson
• AS199385 Midland Press Ltd
• AS44697 Computer & Communication Co. Limited
• AS65020

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS59617 Andy Davidson
• AS199385 Midland Press Ltd
• AS44697 Computer & Communication Co. Limited
• AS34549 meerfarbig GmbH & Co. KG
• AS24482 SG.GS
• AS48362 Stadtwerke Feldkirch
• AS50300 CustodianDC Limited
• AS48185 team.blue NV
• AS33891 Core-Backbone GmbH
• AS37721 Virtual Technologies & Solutions
• AS12552 GlobalConnect AB
• AS37100 SEACOM Limited
• AS57463 NetIX Communications JSC
• AS3741 Dimension Data
• AS8218 Zayo Infrastructure France SA
• AS42708 Glesys AB
• AS9002 RETN Limited
• AS4637 Telstra Global
• AS65020
• AS213241 TECHIT.BE SRL
• AS29075 IELO-LIAZO SERVICES SAS
• AS13030 Init7 (Switzerland) Ltd.

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• London Network Access Point — London, United Kingdom