AS1689 — ANS-1689-AS

AS1689 announces 12 IPv4 prefixes covering 3,840 addresses and 0 IPv6 prefixes.

About this network

A network of ANS Communications (ANS-1689-AS). 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

• 63.126.25.0/24
• 152.178.64.0/24
• 152.178.68.0/24
• 152.178.72.0/24
• 152.186.80.0/24
• 152.186.84.0/24
• 152.186.88.0/23
• 152.186.92.0/23
• 152.186.96.0/23
• 193.78.65.0/24
• 203.166.41.0/24
• 203.193.104.0/24

Upstream networks

• AS701 Verizon Business
• AS702 Verizon Business
• AS703 Verizon Business

Adjacent networks

• AS701 Verizon Business
• AS702 Verizon Business
• AS703 Verizon Business