Autonomous system
AS10118 HTCL-IAS-HK-AP Hutchison Telephone Company Limited
Mobile APNIC Cable/DSL/ISP
Summary
Hutchison Telephone Company Limited (3 Hong Kong)
HTCL-IAS-HK-AP is Hutchison Telephone Company Limited, the operating company behind 3 Hong Kong — the CK Hutchison mobile carrier with roughly three million subscribers and about a fifth of the Hong Kong mobile market. The IAS in the handle stands for Internet Access Service: this is the AS that carries 3's mobile data customers to the internet.
What it's used for
Handset and mobile-broadband traffic. The AS announces 79 IPv4 prefixes totalling 45,056 addresses plus 18 IPv6 prefixes, the latter a set of large /36s out of 2407:3100::/32. That IPv6 profile is itself a mobile tell: cellular cores hand every attached device a v6 prefix, so operators carve their allocation into many large chunks per region and per APN, while a fixed enterprise would have no use for eighteen /36s.
Notable
This is a mobile eyeball network, and the ratio of users to addresses is the reason it looks smaller than it is. Roughly 45,000 public addresses against millions of subscribers only works because mobile data is delivered behind large-scale carrier NAT, with thousands of handsets sharing each public IPv4 address. The 19 observed BGP neighbours confirm the role from the other side: an eyeball carrier buys transit and peers locally, whereas a wholesale transit network at this size would be seen with hundreds of neighbours.
Interesting
3 Hong Kong splits its estate across more than one AS. Its legacy WAP gateway space sits separately in AS10116, which is why two adjacent AS numbers carry the same holder name.
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
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Hong Kong Internet Exchange | Hong Kong, China | 123.255.90.203 |
| Equinix Internet Exchange Hong Kong | Hong Kong, China | 2001:de8:7::1:118:1 |
Transit providers
9 upstream, 2 downstream and 18 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS9304 | HGC Global Communications Limited | 2,363 |
| AS6939 | Hurricane Electric LLC | 712 |
| AS10103 | HK Broadband Network Ltd. | 647 |
| AS4635 | Hong Kong Internet Exchange--Route Server 1 | 122 |
| AS24482 | SG.GS | 89 |
| AS9002 | RETN Limited | 77 |
| AS8966 | EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC | 71 |
| AS8359 | MTS PJSC | 29 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 21 prefixes · 43.01K addresses IPv6 15 prefixes
| Country | Name | Prefixes |
|---|---|---|
| HK | Hong Kong | 36 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS10118- Registry name
- HTCL-IAS-HK-AP
- Registrant
- HGC Global Communications Limited
- Abuse contact
- davidk@hthk.com
- Registered
- 2008-09-04
- Last changed
- 2024-11-13
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Hutchison Telecommunications Hong Kong Holdings Limited
- Also known as
- 3HK
- Network type
- Cable/DSL/ISP
- Scope
- Asia Pacific
- Traffic ratio
- Mostly Inbound
- Peering policy
- Selective
- Present at
- 2 exchanges
- Facilities
- 2 facilities
- Website
- http://www.three.com.hk
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
- RPKI
- 100% valid · 97 valid, 0 with no ROA
- ROAs
- 32 authorising AS10118
- ASPA
- no ASPA record
- IRR
- 100% registered · 97 of 97 announcements
- Route objects
- 708 naming AS10118
Reputation
Classification and threat
Mobile Cellular carrier. Addresses are shared by many handsets via CGNAT.
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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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