asn.dev

Autonomous system

AS21615 CEBRIDGE

Unclassified ARIN

IPv4 addresses 2.56K 7 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Cebridge Connections

United States of America · AI-generated

business isp rural fiber

CEBRIDGE is the autonomous system for Cebridge Connections, a rural telecommunications provider.

What it's used for

  • The address space carries customer access traffic, evidenced by netnames referencing specific towns such as CALDWELL-CEBRIDGE-CONNECTIONS, GRAINGEVILLE-CEBRIDGE-CONNECTIONS, BIDWELL-CEBRIDGE-CONNECTIONS, and SHINNSTON-CEBRIDGE-CONNECTIONS.
  • The AS announces 2560 IPv4 addresses across 7 prefixes with only 2 observed neighbours, a ratio that indicates an access or eyeball network rather than a transit provider.

Notable

  • Registrants are consistent with the announcer, listing Cebridge Connections for most blocks, while 209.33.20.0/24 and 209.33.22.0/24 list local customer groups as registrants.
  • The inventory includes a block registered to Optimum with the netname SUDDE-NETBLK-NCT, which does not align with the Cebridge branding seen in the other prefixes.
  • The address inventory is composed of small /23 and /24 blocks, reflecting a site-by-site segmentation typical of a regional fiber or DSL provider.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS23138FIRST STEP INTERNET, LLC455
AS5650Frontier Communications of America, Inc.114

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 7 prefixes · 2.56K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America7

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS21615
Registry name
CEBRIDGE
Registrant
Cebridge Connections
Abuse contact
abuse@suddenlink.net
Registered
2001-05-31
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
11% valid · 1 valid, 8 with no ROA
ROAs
2 authorising AS21615
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
40 naming AS21615

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,778 prefixes, as published 2026-10-20. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check