Autonomous system
AS29180 O2-ONLINE-AS Telefonica UK Limited
Unclassified RIPE
Summary
O2 UK
mobile residential business telecom
The AS handle O2-ONLINE-AS is held by Telefonica UK Limited.
What it's used for
- The address space carries O2 UK IP Space Management, with netnames including
UK-O2UK-20030814,O2-reference, andO2Online. - The AS announces 15104 IPv4 addresses across 13 prefixes with only 1 observed neighbour, indicating a large access or eyeball network rather than a transit provider.
Notable
- Registrants consistently identify as Telefonica UK Limited or O2 UK IP Space Management, aligning with the AS holder.
- O2 UK is the UK mobile and broadband division of Telefónica, the Spanish telecommunications group.
- The inventory consists primarily of 82.132.0.0/16 space, subdivided into /20, /21, /22, /23, and /24 blocks, alongside a single /22 in 185.238.0.0/16.
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
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS35228 | Telefonica UK Limited | 1,378 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-03, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 15 prefixes · 14.59K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 15 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS29180- Registry name
- O2-ONLINE-AS
- Registrant
- O2UK-MNT
- Abuse contact
- ripe@o2.com
- Registered
- 2003-06-23
- Last changed
- 2018-06-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 24 valid, 0 with no ROA
- ROAs
- 25 authorising AS29180
- ASPA
- no ASPA record
- IRR
- 100% registered · 24 of 24 announcements
- Route objects
- 24 naming AS29180
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: 448 networks and 1,851 prefixes, as published 2026-11-04. 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