Autonomous system
AS10126 CHTI-IP-AP Taiwan Internet Gateway
Unclassified APNIC
Summary
Taiwan Internet Gateway (Chunghwa Telecom International)
CHTI-IP-AP is the customer-address AS of Chunghwa Telecom's International Business Group, the arm that runs the TWGate international gateway out of Taipei. It holds the IP space TWGate hands to its access customers rather than the backbone itself.
What it's used for
Assigned connectivity for organisations buying internet access and leased-line service through TWGate. The AS announces 10 IPv4 prefixes totalling about 34,800 addresses plus two IPv6 /48s, and every sampled PTR sits under Chunghwa's own twgate.net service domain, in the sequential 175-111-192-5.twgate-ip.twgate.net form a carrier stamps on space it has delegated to customers. Two of the samples show what actually lives there: shsdb.twgate.net, an operator-run host, and epaper.jpmmail.com, a customer's mail-and-newsletter server. This is carrier-assigned server and office space, not a subscriber pool.
Notable
This is carrier-assigned business space, not a transit network, and the neighbour count is what settles it. Roughly 34,800 addresses against only 2 observed BGP neighbours cannot be a wholesale carrier, which would peer with hundreds of ASes. Chunghwa's actual gateway routing lives in its own transit ASes; AS10126 exists to originate the assignment blocks. Geolocate it to Taiwanese business customers of Chunghwa International.
Interesting
The address space is drawn from three unrelated-looking ranges (175.111, 203.160, 220.128) yet all carry first-party twgate.net reverse DNS. Scattered blocks with the operator's own rDNS are a real carrier's accumulated allocations, not a broker's.
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
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 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS9505 | Taiwan Internet Gateway | 653 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 17 prefixes · 27.65K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| TW | Taiwan, Province of China | 19 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS10126- Registry name
- CHTI-IP-AP
- Registrant
- Chunghwa Telecom Co., Ltd.
- Abuse contact
- b-noc@cht.com.tw
- Registered
- 2008-09-04
- Last changed
- 2020-06-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 12 valid, 0 with no ROA
- ROAs
- 9 authorising AS10126
- ASPA
- no ASPA record
- IRR
- 83% registered · 10 of 12 announcements 1 other origin
- Route objects
- 42 naming AS10126
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: 436 networks and 1,771 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