Autonomous system
AS15689 ASNUM-ORG-AISN1-RIPE
Unclassified RIPE
Summary
Advanced IT Services Nottingham
hosting business isp
The AS handle is a machine-generated registry object identifier, prefix and suffix included.
What it's used for
- An IT services company's network. One IPv4
/21and one IPv6 prefix announced from the United Kingdom, two thousand and forty-eight addresses, across two observed BGP neighbours.
Notable
- The handle reads as four parts joined by hyphens: a word meaning AS number, a word meaning organisation, a generated four-letter abbreviation with a digit appended, and the registry's own name at the end.
- Nothing in that string was typed by a person. It is the internal identifier of the organisation record, published as the name of the network.
- The single IPv4 block's netname compresses the company name and drops the city that appears in the holder string, then adds an allocation date.
- The IPv6 allocation is a
/29, which is the standard opening size regardless of how small the IPv4 footprint is. - The block lists the company and an abuse role.
- Three addresses were queried for reverse DNS and none returned a name.
Interesting
- Generated identifiers leaking into name fields is what happens when a form pre-fills a default and the default is never replaced. It is harmless and it means every tool that shows a network name shows this one a piece of the registry's plumbing.
- Two thousand addresses of IPv4 beside an IPv6 block big enough for billions is the modern asymmetry in one record.
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 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 2.05K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15689- Registry name
- ASNUM-ORG-AISN1-RIPE
- Registrant
- Advanced IT Services Nottingham Ltd
- Abuse contact
- pdixon@advanceditservices.co.uk
- Registered
- 2011-06-16
- Last changed
- 2017-11-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS15689
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 11 naming AS15689
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 1,781 prefixes, as published 2026-10-16. 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