asn.dev

Autonomous system

AS18257 BITCOMM-AS ChangZhou Bitcomm Software Technology Co., Limited

Unclassified APNIC

IPv4 addresses 0 0 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

ChangZhou Bitcomm Software Technology Co., Limited

China · AI-generated

business china software

BITCOMM-AS is operated by ChangZhou Bitcomm Software Technology Co., Limited.

What it's used for

  • The address space carries a corporate estate, with all four IPv4 prefixes registered under the netname BITCOMM-CN and managed by bitcomm administrator.
  • The AS announces 6,656 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, while maintaining only 2 observed neighbours, a ratio indicative of a small-scale business or internal network rather than a transit provider.

Notable

  • Registrants are consistent with the announcer, with all prefixes listed under bitcomm administrator and associated IRT contacts IRT-CNNIC-CN and IRT-BITCOMM-CN.
  • The inventory consists of a block in the 118.184.0.0/16 range, specifically 118.184.176.0/20, 118.184.168.0/21, 118.184.152.0/24, and 118.184.158.0/24, alongside a single /48 IPv6 prefix.

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS20473The Constant Company, LLC31
AS56046China Mobile communications corporation8

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-23, 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 0 prefixes · 0 addresses IPv6 1 prefixes

CountryNamePrefixes
CNChina1

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS18257
Registry name
BITCOMM-AS
Abuse contact
ipas@cnnic.cn
Registered
2016-05-30
Last changed
2021-06-16
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 9 valid, 0 with no ROA
ROAs
2 authorising AS18257
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
65 naming AS18257

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 1,779 prefixes, as published 2026-10-24. 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