asn.dev

Autonomous system

AS55789 IDC-TW TWIDC

Unclassified ARIN

IPv4 addresses 1.02K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly TW
Exchanges 1 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

TWIDC

Taiwan, Province of China · AI-generated

isp residential taiwan cable

IDC-TW is operated by AsiaPacificNewTechnologies Co. Ltd, known as TWIDC.

What it's used for

  • The address space carries static IP endpoints, as indicated by reverse DNS records such as 103-9-116-128.static-ip.as55789.net and 202-59-250-128.static-ip.AS55789.NET.
  • The AS announces 1024 IPv4 addresses across 2 prefixes and maintains 4 observed neighbours, a ratio consistent with an access network providing connectivity to end users.
  • Traffic from this AS consists of subscriber eyeballs, as TWIDC operates as a Cable/DSL/ISP in the Asia Pacific region.

Notable

  • Registrants for both announced prefixes (103.9.116.0/23 and 202.59.250.0/23) are listed as AsiaPacificNewTechnologies Co. Ltd with the netnames IDC-AS-AP and IDC-TW, aligning with the AS holder.
  • The address inventory is compact, consisting of two /23 blocks totaling 1024 addresses, with no IPv6 prefixes announced.

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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Taipei Internet Exchange (TPIX)Taipei, Taiwan203.163.222.110

Transit providers

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

ASNetworkPaths seen
AS6939Hurricane Electric LLC250
AS9924Taiwan Fixed Network, Telco and Network Service Provider.10
AS24482SG.GS4

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 2 prefixes · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
TWTaiwan, Province of China2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS55789
Registry name
IDC-TW
Registrant
AsiaPacificNewTechnologies Co. Ltd
Abuse contact
noc@as55789.net
Registered
2010-09-26
Last changed
2020-08-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 4 valid, 0 with no ROA
ROAs
8 authorising AS55789
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
131,105 naming AS55789

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 1,782 prefixes, as published 2026-10-16. 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