Autonomous system
AS17458 SURE-IO Sure Diego Garcia Limited
Unclassified APNIC
Summary
Sure (Diego Garcia) Limited
government military telecom dio
The AS handle SURE-IO is held by Sure (Diego Garcia) Limited.
What it's used for
- The address space carries infrastructure for the US military base on Diego Garcia, as indicated by the registrant name and the country of announced blocks being the British Indian Ocean Territory.
- The network announces 3072 IPv4 addresses across 3 prefixes with only 2 observed neighbours, a ratio that suggests a small, isolated, or point-to-point operational network rather than a large commercial ISP or transit provider.
Notable
- All registrants for the announced prefixes agree with the announcer, listing Sure Diego Garcia Limited administrator and IRT-SURE-IO.
- The address inventory consists of three distinct IPv4 blocks: 203.83.48.0/21, 202.44.112.0/23, and 202.44.114.0/23, with no IPv6 prefixes in inventory.
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 2026-10-12, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 3.07K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| IO | British Indian Ocean Territory | 3 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS17458- Registry name
- SURE-IO
- Registrant
- Sure (Diego Garcia) Limited
- Abuse contact
- dg.engineering@sure.com
- Registered
- 2008-09-04
- Last changed
- 2020-07-01
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 12 valid, 0 with no ROA
- ROAs
- 12 authorising AS17458
- ASPA
- no ASPA record
- IRR
- 100% registered · 12 of 12 announcements
- Route objects
- 12 naming AS17458
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: 435 networks and 1,769 prefixes, as published 2026-10-13. 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