Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS42772

Announcement observedRIPE NCC

Unitary enterprise A1 · A1-BY-AS

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/3/2026, 15:44:31Snapshot expired

View network topology RDAP registration

ASN: AS42772
Registration country: Belarus
Name: Unitary enterprise A1
Abbreviation: A1-BY-AS
Registration date: 4/13/2007, 11:20:44
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
128.140.240.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.140.240.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.140.244.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.140.248.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.0.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.0.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.16.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.2.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.20.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.24.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.24.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.28.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.32.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.4.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.40.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.56.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.6.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.60.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
128.65.8.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
146.120.128.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
146.120.136.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
146.120.144.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
146.120.32.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
146.120.36.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.128.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.128.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.136.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.144.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.148.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.152.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.160.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.168.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.176.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.184.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.192.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.196.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.200.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.208.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.216.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.224.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.232.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.240.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.244.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.244.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.245.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.246.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.246.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.247.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record
151.249.248.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 08:00:00	10/3/2026, 08:00:00	✓	×	Historical record

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: Unitary enterprise A1
RIR: RIPE NCC
Registration country: Belarus
Registration date: 4/13/2007, 11:20:44
Abuse contact: abuse@a1.by

Snapshot trend

10/3/2026, 15:44:31385 v420 v63 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn