Autonomous system profile

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

AS23028

Announcement observedARIN

TEAM-CYMRU - Team Cymru Inc. · TEAM-CYMRU

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

Last active10/12/2026, 18:58:01Snapshot expired

View network topology RDAP registration

ASN: AS23028
Registration country: United States
Name: TEAM-CYMRU - Team Cymru Inc.
Abbreviation: TEAM-CYMRU
Registration date: 1/4/2002, 05:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
192.138.226.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
203.28.18.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
204.74.64.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.0.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.0.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.12.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.13.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.14.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.15.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.17.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.18.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.19.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.2.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.20.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.3.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.36.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.37.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.38.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.39.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.4.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.6.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.7.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.8.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
216.31.9.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
38.229.252.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
38.229.33.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
68.22.187.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 08:00:00	10/12/2026, 08:00:00	✓	×	Currently valid

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

Registration and sources

Organization: TEAM-CYMRU - Team Cymru Inc.
RIR: ARIN
Registration country: United States
Registration date: 1/4/2002, 05:00:00
Abuse contact: peering@cymru.com

Snapshot trend

10/12/2026, 18:58:0128 v417 v67 Upstream · 0 Uncertain

10/1/2026, 11:27:5228 v417 v67 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 · rir-rdap-asn · iana-rdap-asn-bootstrap