Autonomous system
AS202858 ALASTAIRBARB
Unclassified RIPE
Summary
Alastair Barber
amateur radio digital ham
The AS handle ALASTAIRBARB is held by Alastair Barber.
What it's used for
- The address space carries Amateur Radio Digital Communications, as indicated by the netname
AMPRNETand registrant "Amateur Radio Digital Communications" for both announced IPv4 prefixes. - The AS announces 512 IPv4 addresses across 2 prefixes and 4 IPv6 prefixes, while maintaining 38 observed neighbours. This ratio of limited address space against a high number of peers suggests a specialized point-to-point or mesh connectivity role rather than a large-scale access or transit provider.
- Traffic from this AS consists of amateur radio digital communications, supporting the global network of ham radio operators using digital modes and packet radio protocols.
Notable
- The RDAP registrants for the announced prefixes list "Amateur Radio Digital Communications" with the netname
AMPRNET, which aligns with the specific purpose of the network despite the individual holder name in the registry. - The inventory consists of two /24 IPv4 blocks and four /48 IPv6 blocks, all located in Finland, reflecting a small, dedicated allocation for a specific hobbyist community rather than a commercial enterprise estate.
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 3 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| London Network Access Point | London, United Kingdom | 5.57.82.161 |
| InterIX Internet Exchange | Amsterdam, Netherlands | 2001:7f8:134::ab |
| Local Internet Exchange Düsseldorf | Düsseldorf, Germany | 185.1.155.154 |
Transit providers
11 upstream, 0 downstream and 15 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 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 512 addresses IPv6 4 prefixes
| Country | Name | Prefixes |
|---|---|---|
| FI | Finland | 6 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS202858- Registry name
- ALASTAIR
- Registrant
- ALASTAIR-MNT
- Abuse contact
- ripe-abuse@oh2xab.fi
- Registered
- 2025-12-12
- Last changed
- 2026-09-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 67% valid · 4 valid, 2 with no ROA
- ROAs
- 4 authorising AS202858
- ASPA
- no ASPA record
- IRR
- 83% registered · 5 of 6 announcements 1 other origin
- Route objects
- 5 naming AS202858
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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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