AS9142 — Commercial ISP

Network type: residential

AS9142 announces 2 IPv4 prefixes covering 73,728 addresses and 0 IPv6 prefixes.

About this network

Internexus Networks Limited is a UK ISP; its address space carries the Supanet and TalkGas consumer brands.

What it's used for

A retail access network. The AS announces ~24 IPv4 prefixes (~74k addresses), including the legacy 213.40.0.0/16, with three observed neighbours. Sampled reverse DNS is subscriber dial-up and ADSL naming: ip213040136000.adsl.supanet.net.uk and dynamic24001.dial.talkgas.net. This is consumer broadband and dial-up space.

Notable

• The dial.talkgas.net and adsl.supanet.net.uk naming is a fossil of the UK's late-1990s/2000s dial-up and ADSL ISP era; the 213.40.0.0/16 block has been announced from this AS since 2000.

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

Announced prefixes

• 212.111.128.0/19
• 213.40.0.0/16

Upstream networks

• AS3257 GTT Communications Inc.
• AS174 Cogent Communications, LLC

Adjacent networks

• AS3257 GTT Communications Inc.
• AS174 Cogent Communications, LLC