Autonomous system
AS27521 CATCOMM-ASN - CATCOMM INTERNET SERVICES, LLC
Unclassified ARIN
Summary
CatComm Internet Services
business isp leased us
The AS handle CATCOMM-ASN is held by CatComm Internet Services, LLC.
What it's used for
- The address space carries a mix of corporate and third-party registrations, including netnames like
LVLT-CIS-149-69-45-224,CATCOMMNBLK1, andFON-110141491275648. - Specific /24 blocks are registered to distinct entities such as
DataSystems Technology Networks, Inc.,Blessey Marine Services, Inc., andYakutat Telecom Company, LLC, indicating leased or managed space for specific clients. - With 6,400 IPv4 addresses announced across 12 prefixes and only 2 observed neighbours, the ratio suggests a small-scale access or business network rather than a large transit provider.
Notable
- Registrants largely align with the announcer, though several prefixes are registered to different companies, reflecting a model of providing connectivity to specific business clients.
- The inventory consists of 12 IPv4 prefixes with no IPv6 announcements, showing a purely IPv4-based service footprint.
- The address space includes blocks originally associated with Level 3 Communications (
LVLT-CIS), suggesting historical acquisition or reassignment of infrastructure.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-01, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 12 prefixes · 6.40K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 12 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS27521- Registry name
- CATCOMM-ASN
- Registrant
- CATCOMM INTERNET SERVICES, LLC
- Abuse contact
- manny@catcomm.net
- Registered
- 2003-03-21
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 25 with no ROA
- ROAs
- 0 authorising AS27521
- ASPA
- no ASPA record
- IRR
- 92% registered · 23 of 25 announcements 2 other origin
- Route objects
- 14 naming AS27521
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 1,843 prefixes, as published 2026-11-02. 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