asn.dev

Autonomous system

AS37942 SACHNET 3rd Floor, Wenbo Building, No.A2 Gaoyuan Street

Unclassified APNIC

IPv4 addresses 4.10K 7 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly CN
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

SACHNET

China · AI-generated

business china ipv4 ipv6

The AS handle SACHNET is held by SACHNET, located at 3rd Floor, Wenbo Building, No.A2 Gaoyuan Street.

What it's used for

  • The address space is registered under the netname SACHNET with registrant IRT-SACHNET-CN across all announced IPv4 prefixes.
  • The network announces 4096 IPv4 addresses across 5 prefixes and 1 IPv6 prefix, with 3 observed routing neighbours.
  • The inventory consists of contiguous blocks within the 202.41.240.0/22 range, including 202.41.248.0/21, 202.41.240.0/22, 202.41.246.0/23, 202.41.244.0/24, and 202.41.245.0/24.

Notable

  • All registrants in the RDAP data agree with the announcer, consistently listing SACHNET as the netname and IRT-SACHNET-CN as the registrant.
  • The address inventory is finely subdivided into five distinct prefixes, suggesting internal segmentation or specific service allocation rather than a single large block.

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, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4808China Unicom Beijing Province Network163
AS4847China Networks Inter-Exchange45

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 7 prefixes · 4.10K addresses IPv6 1 prefixes

CountryNamePrefixes
CNChina8

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS37942
Registry name
SACHNET
Abuse contact
172269004@qq.com
Registered
2008-09-04
Last changed
2021-11-03
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS37942
ASPA
no ASPA record
IRR
75% registered · 3 of 4 announcements
Route objects
1 naming AS37942

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: 442 networks and 1,784 prefixes, as published 2026-10-19. 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