Autonomous system profile

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

AS27818

Announcement observedLACNIC

AS27818 - Cotesma · AS27818

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

Last active10/13/2026, 10:32:10Snapshot expired

View network topology RDAP registration

ASN: AS27818
Registration country: Argentina
Name: AS27818 - Cotesma
Abbreviation: AS27818
Registration date: 3/31/2006, 12:00:00
Status: Announcement observed
RIR: LACNIC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
131.161.152.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
131.161.153.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
131.161.154.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
131.161.155.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.128.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.129.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.130.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.131.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.132.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.133.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.134.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.135.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.136.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.137.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.138.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.139.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.140.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.141.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.142.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.143.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.144.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.145.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.146.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.147.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.148.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.149.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.150.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.151.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.152.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.153.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.154.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.155.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.156.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.157.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.158.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
181.114.159.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
200.47.43.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.160.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.161.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.162.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.163.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.164.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.165.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.166.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.167.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.168.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.169.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.170.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.171.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
201.220.172.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 16:00:00	10/17/2026, 00:00:00	✓	×	Currently valid

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

Registration and sources

Organization: AS27818 - Cotesma
RIR: LACNIC
Registration country: Argentina
Registration date: 3/31/2006, 12:00:00
Abuse contact: marcos.pytel@cotesma.com.ar

Snapshot trend

10/13/2026, 10:32:1071 v418 v64 Upstream · 0 Uncertain

10/11/2026, 06:34:1171 v418 v64 Upstream · 0 Uncertain

10/10/2026, 04:59:3771 v418 v64 Upstream · 0 Uncertain

10/3/2026, 00:32:3771 v418 v64 Upstream · 0 Uncertain

10/2/2026, 00:09:2471 v418 v64 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