AS1661 — ANS-ATLANTA
AS1661 announces 26 IPv4 prefixes covering 11,008 addresses and 0 IPv6 prefixes.
About this network
An Atlanta-area node of ANS Communications (ANS-ATLANTA). 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 regional 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
- 63.64.24.0/24
- 63.77.76.0/23
- 63.78.210.0/24
- 63.87.16.0/23
- 63.97.104.0/23
- 63.110.102.0/23
- 63.118.0.0/23
- 63.118.90.0/23
- 65.198.234.0/24
- 65.203.146.0/23
- 65.210.178.0/23
- 65.210.180.0/24
- 65.211.120.0/23
- 65.217.40.0/23
- 65.243.172.0/23
- 152.189.92.0/23
- 152.189.95.0/24
- 152.189.96.0/24
- 152.189.117.0/24
- 152.189.118.0/24
- 193.67.62.0/23
- 193.67.76.0/23
- 194.115.38.0/23
- 194.115.116.0/23
- 195.124.6.0/24
- 212.136.178.0/23
Upstream networks
Adjacent networks
BGP / ASN / CIDR
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IPv4
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED