Autonomous system profile

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

AS212237

Announcement observedRIPE NCC

Changgong Zhang · PXNET

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

Last active10/13/2026, 13:07:46Snapshot expired

View network topology RDAP registration

ASN: AS212237
Registration country: China
Name: Changgong Zhang
Abbreviation: PXNET
Registration date: 12/2/2020, 10:17:29
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
103.31.236.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/5/2026, 08:00:00	10/17/2026, 08:00:00	✓	×	Currently valid
103.31.236.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/17/2026, 08:00:00	✓	×	Currently valid
103.31.236.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/17/2026, 08:00:00	✓	×	Currently valid
103.31.237.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/5/2026, 08:00:00	10/17/2026, 08:00:00	✓	×	Currently valid
103.31.238.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/17/2026, 08:00:00	✓	×	Currently valid
103.31.239.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/17/2026, 00:00:00	10/17/2026, 08:00:00	✓	×	Currently valid

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

Registration and sources

Organization: Changgong Zhang
RIR: RIPE NCC
Registration country: China
Registration date: 12/2/2020, 10:17:29
Abuse contact: pxnet@u5u5.com

Snapshot trend

10/13/2026, 13:07:466 v48 v68 Upstream · 3 Uncertain

10/10/2026, 19:23:446 v48 v69 Upstream · 2 Uncertain

10/1/2026, 03:03:044 v43 v68 Upstream · 2 Uncertain

10/1/2026, 02:27:240 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 · iana-rdap-asn-bootstrap · rir-rdap-asn