asn.dev

Autonomous system

AS27557 AS27557 - Catalina Broadband Solutions, LLC

Unclassified ARIN

IPv4 addresses 2.30K 5 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Catalina Broadband Solutions

United States of America · AI-generated

residential broadband isp us

AS27557 is operated by Catalina Broadband Solutions, LLC.

What it's used for

  • The address space carries residential broadband traffic, evidenced by reverse DNS entries pointing to unassigned.midatlanticbb.com and registrant netnames like ECS-MABB-NETWORK (Economic Computer Systems Inc. dba Mid Atlantic Broadband) and yondoo BroadBand.
  • The AS announces 2304 IPv4 addresses across 5 prefixes with only 1 observed neighbour, a ratio indicative of an access or eyeball network rather than a transit provider.

Notable

  • Registrants include yondoo BroadBand and Economic Computer Systems Inc. dba Mid Atlantic Broadband, which differ from the AS holder name but align with the midatlanticbb.com domain in the reverse DNS sample.
  • The inventory consists of five IPv4 prefixes within the 66.225.0.0/16 range, with no IPv6 prefixes announced.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS54483GeoLinks462

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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 5 prefixes · 2.30K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America5

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS27557
Registry name
AS27557
Registrant
Catalina Broadband Solutions, LLC
Abuse contact
abuse@midatlanticbb.com
Registered
2009-12-28
Last changed
2013-06-18
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 7 with no ROA
ROAs
0 authorising AS27557
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
11 naming AS27557

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: 447 networks and 1,845 prefixes, as published 2026-10-31. 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