asn.dev

Autonomous system

AS140731 TOHU-OP-AP TOHU Public Internet

Unclassified APNIC Educational/Research

IPv4 addresses 0 0 prefixes
IPv6 prefixes 22 counted as prefixes, not addresses
Countries 1 mostly CN
Exchanges 4 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 4 exchanges in 4 countries, largest first.

ExchangeLocationTheir address
Neutral Internet ExchangeAmsterdam, Netherlands193.239.117.195
KleyReX Internet ExchangeFrankfurt, Germany193.189.83.76
Student & Technology United Internet ExchangesTaipei, Taiwan103.158.187.40
UNMETERED ExchangeVancouver, Canada192.34.27.91

Transit providers

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

ASNetworkPaths seen
AS44324MoeDove LLC184
AS7720Skywolf Technology LLC97
AS139317Ningbo Dahuamao Information Technology Co Ltd38

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 22 prefixes

CountryNamePrefixes
CNChina22

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS140731
Registry name
TOHU-OP-AP
Registrant
TOHU Public Internet
Abuse contact
thebairuo@gmail.com
Registered
2020-06-16
Last changed
2023-11-07
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
TOHUNET
Network type
Educational/Research
Scope
Global
Traffic ratio
Mostly Inbound
Peering policy
Selective
IRR as-set
RIPE::AS-TOHUNET
Present at
7 exchanges
Website
https://as140731.tohunet.com

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 9 valid, 0 with no ROA
ROAs
5 authorising AS140731
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
591 naming AS140731

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 1,773 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