Autonomous system
AS9674 FET-TW Far EastTone Telecommunication Co., Ltd.
Unclassified APNIC
Summary
Far EasTone Telecommunications (FET)
isp residential mobile legacy
AS9674 (FET-TW) is held by Far EasTone Telecommunications Co., Ltd., one of Taiwan's three major telecom operators and part of the Far Eastern Group. Far EasTone completed its merger with Asia Pacific Telecom (APT) in December 2023, absorbing that operator's spectrum, customers and address space.
What it's used for
This is Far EasTone's consumer access network. RIS sees 80 IPv4 prefixes carrying 1,844,480 addresses plus 40 IPv6 prefixes out of 2401:e180::/32 space, all announced through only 2 observed BGP neighbours. That combination is the textbook eyeball signature: an enormous address pool reaching a small number of upstream/backbone attachments, rather than the thousands of neighbours a wholesale transit carrier would show. The IPv4 inventory is built from large legacy-scale blocks. 27.240.0.0/13 and 110.24.0.0/13 at the top, then a long run of /16s and /17s, which is how a network with millions of subscriber sessions carves address space by region and access platform.
The reverse DNS confirms the role and the merger. Sampled addresses across the /13s and /16s all resolve to *.adsl.fetnet.net, generated per-address subscriber names on Far EasTone's fixed broadband. Separately, 223.22.128.0 space resolves under mobile.dynamic.aptg.com.tw, the former Asia Pacific Telecom mobile pool, now carried inside the same AS.
Notable
- The AS carries both fixed broadband and post-merger APT mobile subscribers, so traffic from it can be either a home line or a handset.
- Forty IPv6 prefixes, mostly /43s, indicate a genuine dual-stack subscriber deployment rather than a token 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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 1 downstream and 3 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS4780 | Digital United Inc. | 6,433 |
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 93 prefixes · 1.83M addresses IPv6 32 prefixes
| Country | Name | Prefixes |
|---|---|---|
| TW | Taiwan, Province of China | 125 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS9674- Registry name
- FET-TW
- Abuse contact
- davidlin1@fareastone.com.tw
- Registered
- 2008-09-04
- Last changed
- 2025-11-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 125 valid, 0 with no ROA
- ROAs
- 22 authorising AS9674
- ASPA
- no ASPA record
- IRR
- 100% registered · 125 of 125 announcements
- Route objects
- 18,193 naming AS9674
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