Autonomous system
AS54103 MODMC-54103-AS
Unclassified ARIN
Summary
MOD Mission Critical
hosting colocation managed-services
MODMC-54103-AS is held by MOD Mission Critical, LLC.
What it's used for
- The address space carries colocation and managed infrastructure, evidenced by netnames such as
CAC-BLOCK5andMOD-MISSIONCRITICAL, and reverse DNS entries pointing tordns.ColocationAmerica.comandcolocationamerica.com. - The AS announces 114,688 IPv4 addresses across 179 prefixes and 4 IPv6 prefixes, while maintaining only 11 observed neighbours; this high address-to-neighbour ratio indicates a hosting or data center role rather than transit.
- Traffic from this AS consists of web/API endpoints, managed servers, and hybrid cloud workloads for enterprise clients, consistent with MOD Mission Critical’s business as a managed services provider specializing in colocation and IP services.
Notable
- Registrants include MOD Mission Critical, LLC, Colocation America Corporation, and Internet Utilities NA LLC, with the latter two representing historical or leased blocks within the current announcement set.
- The address inventory is finely subdivided into numerous /21 and /22 blocks, reflecting a site-by-site segmentation typical of a multi-POP data center operator.
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.
Transit providers
9 upstream, 1 downstream and 13 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 177 prefixes · 114K addresses IPv6 4 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 181 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS54103- Registry name
- MODMC-54103-AS
- Registrant
- MOD Mission Critical, LLC
- Abuse contact
- support@modmc.net
- Registered
- 2015-05-06
- Last changed
- 2024-05-31
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 38% valid · 168 valid, 271 with no ROA
- ROAs
- 140 authorising AS54103
- ASPA
- no ASPA record
- IRR
- 87% registered · 380 of 439 announcements 44 other origin
- Route objects
- 567 naming AS54103
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 1,771 prefixes, as published 2026-10-15. 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