Autonomous system profile

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

AS143773

Announcement observedAPNIC

AS143773-100 - China Education and Research Network (CERNET) · AS143773-100

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

Last active10/8/2026, 01:37:29Snapshot expired

View network topology RDAP registration

ASN: AS143773
Registration country: China
Name: AS143773-100 - China Education and Research Network (CERNET)
Abbreviation: AS143773-100
Registration date: 5/7/2021, 00:57:26
Status: Announcement observed
RIR: APNIC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
240a:a463::/32BGP · IPv6	Announced prefixBGP route observation	Not applicable · BGP prefix	9/23/2026, 16:00:00	10/7/2026, 16:00:00	×	✓	Currently valid

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

Registration and sources

Organization: AS143773-100 - China Education and Research Network (CERNET)
RIR: APNIC
Registration country: China
Registration date: 5/7/2021, 00:57:26
Abuse contact: Not recorded

Snapshot trend

10/8/2026, 01:37:290 v41 v61 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