asn.dev

Autonomous system

AS63621 NXBCTV-NET - NINGXIA BROADCAST&TV NETWORK CO.,LTD

Unclassified APNIC

IPv4 addresses 512 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly CN
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Ningxia Broadcast & TV Network

China · AI-generated

broadcast government china media

NXBCTV-NET is operated by Ningxia Broadcast & TV Network Co., Ltd.

What it's used for

  • The address space carries broadcast and television network infrastructure, as indicated by the holder name and the netname CBCT associated with the registrant IRT-CBCT-CN.
  • The AS announces 512 IPv4 addresses across 1 prefix and 4 IPv6 prefixes, with only 1 observed neighbour, indicating a small, self-contained network rather than a transit provider.
  • Traffic from this AS consists of internal media production, distribution, and administrative endpoints for the regional broadcasting entity.

Notable

  • The registrant IRT-CBCT-CN for the netname CBCT aligns with the announcer, Ningxia Broadcast & TV Network Co., Ltd.
  • The address inventory is compact, consisting of a single /23 IPv4 block and four IPv6 prefixes, typical for a specialized corporate or governmental media network.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS146788China Broadcasting Network Co., Ltd45

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-06, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
CNChina1

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS63621
Registry name
NXBCTV-NET
Abuse contact
ywknx@qq.com
Registered
2016-10-09
Last changed
2023-11-28
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
93% valid · 13 valid, 0 with no ROA 1 RPKI-invalid
ROAs
24 authorising AS63621
ASPA
no ASPA record
IRR
14% registered · 2 of 14 announcements
Route objects
6 naming AS63621

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 454 networks and 1,854 prefixes, as published 2026-11-06. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check