asn.dev

Autonomous system

AS42772 A1-BY-AS

Unclassified RIPE

IPv4 addresses 249K 148 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly BY
Exchanges 0 recorded by PCH
Upstreams 3 8 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

3 upstream, 8 downstream and 14 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS12406Business Network Ltd21,738
AS60330Belarusian Cloud Technologies LLC2,353
AS6697Republican Unitary Telecommunication Enterprise Beltelecom1,540

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 148 prefixes · 249K addresses IPv6 3 prefixes

CountryNamePrefixes
BYBelarus151

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS42772
Registry name
A1-BY-AS
Registrant
MNT-MDC
Abuse contact
abuse@a1.by
Registered
2007-04-13
Last changed
2026-10-07
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 405 valid, 0 with no ROA
ROAs
381 authorising AS42772
ASPA
no ASPA record
IRR
99.8% registered · 404 of 405 announcements
Route objects
468 naming AS42772

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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

Cross-check