AS14978 — CSSBB

AS14978 announces 8 IPv4 prefixes covering 11,520 addresses and 3 IPv6 prefixes.

About this network

Seventeen BGP neighbours on 11,520 addresses, far more connections than a network this size usually keeps.

What it's used for

• A broadband provider's network. 11,520 addresses across eight IPv4 prefixes plus three IPv6 prefixes, with 17 observed BGP neighbours.

Notable

• Blocks in 63.249 carry the netname CSSBB with a Tier3 Support contact; blocks in 74.213 carry CSSBB-2. Both are registered to Consolidated Smart Systems LLC.
• Each range is announced as a halving chain: 63.249 runs /21, /22, /23, /24, and 74.213 runs /20, /21, /22, /23.
• The IPv6 prefixes are 2607:ec80::/38, 2607:ec80:800::/37 and 2607:ec80:1400::/38, three pieces of one allocation.
• Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

• Seventeen neighbours is what a network gets by joining internet exchanges, where one connection buys peering with everyone else in the room. A provider serving many buildings across a metro area has good reason to do that, and few other ways to reach this count.
• Two ranges, two netnames and two identical halving chains say the same operator ran the same process twice. The habit is visible in the routing table long after whoever set it is gone.
• Splitting an IPv6 allocation into three announcements at two different lengths, rather than one, carries the IPv4 habit into a protocol that has no need for it.
• A support contact named for a tier tells you the registry record was filled in by someone reading off an org chart.

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

Announced prefixes

• 63.249.48.0/21
• 63.249.56.0/22
• 63.249.60.0/23
• 63.249.62.0/24
• 74.213.224.0/21
• 74.213.232.0/23
• 74.213.236.0/22
• 74.213.240.0/20
• 2607:ec80::/38
• 2607:ec80:800::/37
• 2607:ec80:1400::/38

Upstream networks

• AS6461 Zayo Bandwidth
• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS7575 Australian Academic and Research Network (AARNet)
• AS14907 Wikimedia Foundation Inc.
• AS20205 Amplex Electric, Inc.

Adjacent networks

• AS6461 Zayo Bandwidth
• AS6939 Hurricane Electric LLC
• AS1299 Arelion Sweden AB
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS7575 Australian Academic and Research Network (AARNet)
• AS14907 Wikimedia Foundation Inc.
• AS20205 Amplex Electric, Inc.

Internet exchanges

• Any2 California — Los Angeles, United States
• Equinix Internet Exchange Dallas — Dallas, United States
• Ohio IX — Columbus, United States