Autonomous system
AS13122 MANX-AS MANX-TELECOM Autonomous System
Unclassified APNIC
Summary
Manx Telecom
telecom isp infrastructure
Eight IPv6 announcements of doubling size, covering half an allocation in a perfect binary cascade.
What it's used for
- The telecommunications operator of the Isle of Man. 48,128 addresses across 27 IPv4 prefixes, 12 IPv6 prefixes, and 134 observed BGP neighbours.
Notable
- Eight of the IPv6 announcements run
/40,/40,/39,/38,/37,/36,/35,/34, each starting where the last one ends. - Netnames are all
IM-MANX, dated970813,19991224,20040519,20051013,20080116,20080304,20100218,20110125,20111227,20140714and20141204. - Reverse names glue a product label directly onto the address, as in
adsl92.39.203.254.manx.net.
Interesting
- The cascade of doubling prefixes is the exact output of an algorithm asked to cover a range whose start is not aligned to its size. Nothing about the network requires eight announcements where one would do; a tool decomposed the range into the largest aligned blocks that fit, and the result was advertised verbatim.
- A six-digit
970813and an eight-digit19991224sit two years apart in one holder's own records. The two date forms were never successive conventions, whatever the digit count suggests. - 134 neighbours for an island of this size is the giveaway that a national operator peers on the mainland: the address count is small, the peering is not.
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 3 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| LINX LON1 | London, United Kingdom | 195.66.225.3 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.209.178 |
| LINX Manchester | Manchester, United Kingdom | 195.66.244.132 |
Transit providers
28 upstream, 3 downstream and 42 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 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 27 prefixes · 48.13K addresses IPv6 12 prefixes
| Country | Name | Prefixes |
|---|---|---|
| IM | Isle of Man | 39 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS13122- Registry name
- MANX-AS
- Registrant
- AS13122-MNT
- Abuse contact
- noc@manxtelecom.com
- Registered
- 2002-05-10
- Last changed
- 2026-01-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 12% valid · 4 valid, 30 with no ROA
- ROAs
- 4 authorising AS13122
- ASPA
- no ASPA record
- IRR
- 100% registered · 34 of 34 announcements
- Route objects
- 251 naming AS13122
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: 440 networks and 1,773 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