asn.dev

Autonomous system

AS38254 ITLAB-AS-AP - Internet Technology Laboratory

Unclassified APNIC Educational/Research

IPv4 addresses 1.28K 4 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly TW
Exchanges 2 recorded by PCH
Upstreams 7 3 downstream
Flagged prefixes 0 none

Summary

Internet Technology Laboratory

Taiwan, Province of China · AI-generated

research education transit

ITLAB-AS-AP is operated by Internet Technology Laboratory.

What it's used for

  • The address space carries research and educational infrastructure, with registrants including PANGWEITSAI-TW, AMPRNET, ASSMAU-NET, and TIH-NET.
  • The AS announces 1280 IPv4 addresses and 3 IPv6 prefixes, peering with 16 neighbours, a ratio consistent with a transit or research network rather than a large access provider.
  • Traffic originates from an educational and research institution, supporting academic projects and specialized network experiments.

Notable

  • Registrants vary across the announced prefixes, with Pang-Wei Tsai holding the largest block and Amateur Radio Digital Communications holding a separate /24.
  • The address inventory is small and fragmented, with prefixes located in both Taiwan and the United States.

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 2 exchanges in 2 countries, largest first.

ExchangeLocationTheir address
Student & Technology United Internet ExchangesTaipei, Taiwan103.158.187.21
Amateur Radio Internet ExchangeFremont, United States44.190.42.13

Transit providers

7 upstream, 3 downstream and 14 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS18423RAID Networks Co., Ltd.224
AS6939Hurricane Electric LLC136
AS7539National Center for High-performance Computing2
AS24482SG.GS2
AS38855Taiwan Digital Streaming Co.2
AS138997Eons Data Communications Limited2
AS18041Taiwan Digital Streaming Co.1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-05, 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 4 prefixes · 1.28K addresses IPv6 3 prefixes

CountryNamePrefixes
TWTaiwan, Province of China7

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS38254
Registry name
ITLAB-AS-AP
Registrant
Pang-Wei Tsai
Abuse contact
noc@itlab.cc
Registered
2021-06-08
Last changed
2025-03-14
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Internet Technology Laboratory
Also known as
ITLab-AS-AP
Network type
Educational/Research
Scope
Asia Pacific
Peering policy
Selective
IRR as-set
APNIC::AS38254:AS-ITLAB
Present at
5 exchanges
Facilities
4 facilities
Website
https://connect.itlab.cc/

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
88% valid · 7 valid, 1 with no ROA
ROAs
7 authorising AS38254
ASPA
no ASPA record
IRR
100% registered · 8 of 8 announcements
Route objects
14 naming AS38254

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: 453 networks and 1,854 prefixes, as published 2026-11-06. 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