AS1670 — ANS-UK

AS1670 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

A network of ANS Communications (ANS-UK). ANS (Advanced Network and Services) was an early US internet backbone operator that built and ran the NSFNET T3 backbone.

What it's used for

• Backbone and transit networking, historically part of the ANS/NSFNET infrastructure.

Notable

• ANS was a pioneering national backbone provider; it was later acquired by AOL and its network passed to WorldCom/MCI.
• The low AS number reflects an early allocation from the internet's formative years.

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

Announced prefixes

• 210.81.255.0/24

Upstream networks

• AS703 Verizon Business

Adjacent networks

• AS703 Verizon Business

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.
• Listed in as-sets: AS-FTECHANS, AS-UUNETUK.