asn.dev

Autonomous system

AS4812 CHINANET-SH-AP China Telecom Group

Residential ARIN

IPv4 addresses 7.87M 767 prefixes
IPv6 prefixes 139 counted as prefixes, not addresses
Countries 1 mostly CN
Exchanges 0 recorded by PCH
Upstreams 2 46 downstream
Flagged prefixes 0 none

Summary

China Telecom (Shanghai)

China · AI-generated

isp residential eyeball dsl fiber

CHINANET-SH-AP is China Telecom's Shanghai province network, part of the national ChinaNet backbone and one of the country's largest consumer broadband regions.

What it's used for

  • Residential fibre and broadband for homes across Shanghai, delivered by China Telecom's provincial network.

Notable

  • A very large "eyeball" network: addresses here are home connections in Shanghai, commonly behind carrier-grade NAT, not servers.
  • One of China Telecom's provincial ASNs; the incumbent operates a ChinaNet block per province that all roll up to the national network.

Interesting

  • Shanghai is among China Telecom's densest and highest-speed fibre markets, so AS4812 is a frequently seen consumer-ISP origin in China-facing traffic.

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

2 upstream, 46 downstream and 65 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4134No.31,Jin-rong Street19,366
AS4809China Telecom Next Generation Carrier Network7,282

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 767 prefixes · 7.87M addresses IPv6 139 prefixes

CountryNamePrefixes
CNChina906

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS4812
Registry name
CHINANET-SH-AP
Abuse contact
anti-spam@chinatelecom.cn
Registered
2008-09-04
Last changed
2020-05-13
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
87% valid · 516 valid, 64 with no ROA 13 RPKI-invalid
ROAs
524 authorising AS4812
ASPA
no ASPA record
IRR
98% registered · 580 of 593 announcements
Route objects
783 naming AS4812

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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