Autonomous system
AS210025 XXSL XXSL Network
Unclassified RIPE
Summary
XXSL Network
research education uk
The AS handle XXSL is held by Alice Cat Research Ltd.
What it's used for
- The address space carries research and educational traffic, evidenced by the netname
US-XXSL4-ALICE-20191212and reverse DNS entries pointing toptr.xxsl.org. - The network announces 256 IPv4 addresses and 8 IPv6 prefixes, with 5 observed neighbours, indicating a small-scale research or institutional network rather than a transit provider.
- Traffic from this AS consists of academic and research endpoints, consistent with the operator's classification as an educational and research institution.
Notable
- The registrant
Abuse-C Rolefor the IPv4 block aligns with the announcerXXSL, confirming consistent ownership. - The address inventory is compact, consisting of a single /24 IPv4 block and multiple /48 and /47 IPv6 prefixes, typical of a dedicated research network.
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 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| KleyReX Internet Exchange | Frankfurt, Germany | 193.189.82.162 |
| Kansas City Internet Exchange | Kansas City, United States | 206.51.7.91 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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 · 256 addresses IPv6 8 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 9 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS210025- Registry name
- XXSL
- Registrant
- Alice Cat Research Ltd
- Abuse contact
- abuse@xxsl.org
- Registered
- 2018-10-23
- Last changed
- 2023-08-22
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 11 valid, 0 with no ROA
- ROAs
- 24 authorising AS210025
- ASPA
- no ASPA record
- IRR
- 100% registered · 11 of 11 announcements
- Route objects
- 29 naming AS210025
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 1,849 prefixes, as published 2026-10-29. 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