Autonomous system profile

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

AS131621

Announcement observedAPNIC

TWNIC-NET-AS - Taiwan Network Information Center · TWNIC-NET-AS

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

Last active10/16/2026, 00:00:00Snapshot expired

View network topology RDAP registration

ASN: AS131621
Registration country: Taiwan
Name: TWNIC-NET-AS - Taiwan Network Information Center
Abbreviation: TWNIC-NET-AS
Registration date: 6/12/2018, 08:42:49
Status: Announcement observed
RIR: APNIC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
101.101.101.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 08:00:00	10/11/2026, 16:00:00	✓	×	Currently valid
101.102.103.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 08:00:00	10/11/2026, 16:00:00	✓	×	Currently valid
182.173.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/21/2026, 08:00:00	10/11/2026, 16:00:00	✓	×	Currently valid

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

Registration and sources

Organization: TWNIC-NET-AS - Taiwan Network Information Center
RIR: APNIC
Registration country: Taiwan
Registration date: 6/12/2018, 08:42:49
Abuse contact: hostmaster@twnic.tw

Snapshot trend

10/5/2026, 18:33:323 v41 v62 Upstream · 0 Uncertain

10/5/2026, 10:02:590 v40 v60 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 · cha-la-bgp-observations