Autonomous system
AS31515 AS-INMARSAT
Unclassified RIPE
Summary
Inmarsat
satellite maritime enterprise global
The AS handle AS-INMARSAT is held by Inmarsat Global Limited.
What it's used for
- The address space is registered under the netname
INMARSATLAand supports Inmarsat's mobile satellite communications and broadband services for maritime, land, and aeronautical sectors. - The AS announces 65,536 IPv4 addresses across 34 prefixes and 1 IPv6 prefix, while maintaining 95 observed neighbours, indicating a role focused on global connectivity and peering rather than pure transit.
Notable
- All registrants in the evidence pack are consistent with the announcer, listing "Inmarsat Network Administrator" and "Inmarsat Global Limited".
- Inmarsat was acquired by Viasat, which completed the acquisition to boost its global satellite internet footprint.
- The inventory consists of a single large IPv4 block (161.30.0.0/18) subdivided into numerous smaller prefixes, reflecting a finely segmented internal corporate estate.
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
Recorded at 6 exchanges in 4 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| LINX LON1 | London, United Kingdom | 195.66.231.133 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.208.119 |
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.118.175 |
| New York International Internet Exchange | New York, United States | 2001:504:1::a503:1515:3 |
| IX Australia (Sydney NSW) | Sydney, Australia | 218.100.52.186 |
| IX Australia (Melbourne VIC) | Melbourne, Australia | 218.100.78.4 |
Transit providers
20 upstream, 2 downstream and 32 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 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 35 prefixes · 65.54K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 36 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS31515- Registry name
- AS-INMARSAT
- Registrant
- INMARSAT-MNT
- Abuse contact
- LIR@inmarsat.com
- Registered
- 2004-06-03
- Last changed
- 2025-05-16
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 98% valid · 57 valid, 0 with no ROA 1 RPKI-invalid
- ROAs
- 64 authorising AS31515
- ASPA
- no ASPA record
- IRR
- 100% registered · 58 of 58 announcements
- Route objects
- 72 naming AS31515
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 1,783 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