asn.dev

Autonomous system

AS63740 TOCDOSOVN-AS-VN TOCDOSOVN-

Unclassified APNIC

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly VN
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

TOCDOSOVN

Viet Nam · AI-generated

vietnam business ipv4

The AS handle TOCDOSOVN-AS-VN is held by TOCDOSOVN-VN.

What it's used for

  • The address space carries the netname TOCDOSOVN-VN, registered under IRT-VNNIC-AP.
  • The AS announces 1024 IPv4 addresses across 1 prefix (103.195.240.0/22) with 0 IPv6 prefixes.
  • With 1 observed neighbour, the single-prefix inventory suggests a small-scale or internal network rather than a large access or transit provider.

Notable

  • The registrant TOCDOSOVN-VN matches the AS handle and netname, indicating consistent ownership.
  • The inventory consists of a single /22 block, representing a compact address allocation.

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 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS38731Vietel - CHT Compamy Ltd58

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 1 prefixes · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
VNViet Nam1

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS63740
Registry name
TOCDOSOVN-AS-VN
Abuse contact
hm-changed@vnnic.vn
Registered
2016-05-04
Last changed
2017-12-29
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS63740
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
6 naming AS63740

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: 443 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