asn.dev

Autonomous system

AS33717 CHT-GLOBAL

Unclassified ARIN

IPv4 addresses 5.38K 12 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 7 0 downstream
Flagged prefixes 0 none

Summary

Chunghwa Telecom Global

United States of America · AI-generated

business telecom enterprise

CHT-GLOBAL is operated by Chunghwa Telecom Global, INC.

What it's used for

  • The address space carries enterprise and carrier-grade connectivity, evidenced by netnames such as CHT-GLOBAL, SPRINTLINK, and INAP-HOU-NET-CHUNGHWA-64-95-220-0.
  • The AS announces 5376 IPv4 addresses across 12 prefixes with 7 observed neighbours, a ratio consistent with a business or enterprise network providing global network solutions rather than a large-scale residential access provider.

Notable

  • Registrants largely align with the announcer, including Chunghwa Telecom Global, INC and CHUNGHWA TELECOM GLOBAL INC., though some prefixes show legacy registrants like Verizon Business and NWE Technology.
  • The address inventory is a mix of /21, /23, and /24 blocks, with the largest being 66.171.120.0/21, indicating a consolidated but varied estate.

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

7 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS1299Arelion Sweden AB592
AS701Verizon Business236
AS9505Taiwan Internet Gateway192
AS174Cogent Communications, LLC72
AS12179Unitas Global59
AS13791Unitas Global59
AS3561CenturyLink Communications, LLC8

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 12 prefixes · 5.38K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America12

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS33717
Registry name
CHT-GLOBAL
Registrant
Chunghwa Telecom Global, INC
Abuse contact
abuse@chtglobal.com
Registered
2005-03-03
Last changed
2012-03-02
Allocation
assigned

Declared

PeeringDB profile

self-reported
Name
Chunghwa Telecom Global
Scope
Not Disclosed
Traffic ratio
Not Disclosed
Website
http://www.cht.com.tw/en/

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
71% valid · 15 valid, 6 with no ROA
ROAs
11 authorising AS33717
ASPA
no ASPA record
IRR
52% registered · 11 of 21 announcements
Route objects
14 naming AS33717

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 1,778 prefixes, as published 2026-10-20. 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