AS10103 — HKBN-AS-AP HK Broadband Network Ltd.

Network type: residential

AS10103 announces 153 IPv4 prefixes covering 178,944 addresses and 2 IPv6 prefixes.

About this network

HKBN-AS-AP is Hong Kong Broadband Network, one of Hong Kong's largest residential fibre ISPs. AS10103 is a second, sizeable HKBN origin alongside the better-known AS9269, and it carries a large slice of the same access estate.

What it's used for

Consumer and small-business broadband in Hong Kong. The AS announces 266 IPv4 prefixes totalling 190,976 addresses plus 7 IPv6 prefixes, including several /18s and /19s (14.198.64.0/18, 203.176.224.0/19, 123.1.160.0/19). Every sampled PTR sits under ctinets.com, HKBN's own legacy service domain inherited from City Telecom, the company that founded it. The naming is machine-generated per address — 014198064005.ctinets.com, 123001160005.ctinets.com — which is what an access ISP does when it has to name a hundred thousand subscriber lines. A subset carries an extra .static. label (202077032005.static.ctinets.com), marking the fixed assignments HKBN sells to business customers out of the same pool.

Notable

This is an eyeball network. Nearly 191,000 addresses against only 90 observed BGP neighbours is the access-ISP silhouette: a wholesale carrier holding that much space would peer with hundreds or thousands of ASes, while an eyeball ISP takes a few upstreams and peers locally, in HKBN's case largely at HKIX. Geolocate this space to Hong Kong households and SME premises, not to a datacentre.

Interesting

The ctinets.com zone is a fossil of City Telecom (HK), the parent that spun HKBN out. The company was renamed and sold, but the reverse-DNS domain was never migrated, so the old name still answers for a very large chunk of Hong Kong's consumer internet.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 14.136.12.0/22
• 14.136.88.0/21
• 14.136.96.0/21
• 14.136.144.0/22
• 14.136.148.0/24
• 14.136.150.0/23
• 14.136.152.0/22
• 14.136.156.0/23
• 14.136.159.0/24
• 14.136.192.0/19
• 14.136.229.0/24
• 14.136.230.0/23
• 14.136.232.0/24
• 14.136.236.0/22
• 14.136.240.0/20
• 14.198.64.0/18
• 14.198.168.0/21
• 14.198.176.0/21
• 43.224.232.0/22
• 58.64.186.0/24
• 58.64.200.0/24
• 58.177.176.0/21
• 58.177.184.0/23
• 58.177.186.0/24
• 58.177.188.0/24
• 59.148.16.0/21
• 59.148.72.0/23
• 59.148.164.0/24
• 59.148.166.0/23
• 59.148.174.0/23
• 59.148.176.0/23
• 59.148.178.0/24
• 59.148.181.0/24
• 59.148.193.0/24
• 59.148.200.0/22
• 59.149.248.0/21
• 59.188.222.0/24
• 59.188.249.0/24
• 61.93.184.0/22
• 61.238.64.0/24
• 61.238.67.0/24
• 61.238.68.0/22
• 61.238.72.0/21
• 61.238.96.0/20
• 61.238.112.0/22
• 61.238.116.0/23
• 61.238.120.0/21
• 61.238.136.0/21
• 61.238.144.0/21
• 61.238.156.0/22
• 61.238.160.0/21
• 61.238.193.0/24
• 61.244.0.0/22
• 61.244.8.0/22
• 61.244.12.0/24
• 61.244.15.0/24
• 61.244.16.0/21
• 61.244.24.0/22
• 61.244.28.0/23
• 61.244.30.0/24
• 61.244.32.0/22
• 61.244.37.0/24
• 61.244.38.0/23
• 61.244.64.0/21
• 61.244.72.0/22
• 61.244.76.0/23
• 61.244.88.0/21
• 61.244.112.0/21
• 61.244.160.0/23
• 61.244.162.0/24
• 61.244.184.0/21
• 61.244.208.0/20
• 103.243.0.0/22
• 113.10.156.0/24
• 113.10.158.0/24
• 113.10.190.0/23
• 113.10.194.0/24
• 113.10.235.0/24
• 113.10.245.0/24
• 113.10.246.0/23
• 123.1.128.0/20
• 123.1.144.0/22
• 123.1.151.0/24
• 123.1.153.0/24
• 123.1.154.0/24
• 123.1.157.0/24
• 123.1.160.0/23
• 123.1.163.0/24
• 123.1.168.0/23
• 123.1.171.0/24
• 123.1.172.0/23
• 123.1.174.0/24
• 123.1.176.0/22
• 123.1.182.0/24
• 123.1.184.0/24
• 123.1.189.0/24
• 123.1.194.0/24
• 123.1.224.0/21
• 123.1.244.0/22
• 123.1.248.0/21

and 55 more.

Upstream networks

• AS9269 Hong Kong Broadband Network Ltd.
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS24482 SG.GS
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS23764 CTGNet
• AS9930 TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia
• AS8359 MTS PJSC

Downstream networks

• AS17444 HKBN Enterprise Solutions Limited
• AS7540 HongKong Commercial Internet Exchange
• AS55361 Lucky Tone Communications Ltd.
• AS133038 Exanet Limited
• AS18218 HK Science & Technology Parks Corporation
• AS10118 Hutchison Telephone Company Limited
• AS136501 HKBN Enterprise Solutions HK Limited
• AS55334 Access Solutions Limited
• AS17537 HKBN JOS Synergy (HK) Limited
• AS58411 Unit A-E, 13/F, Golden Sun Centre,
• AS10231 Tech-trans System Ltd.
• AS137927 Automated System (HK) Ltd.
• AS151358 Finovy Pte. Ltd.
• AS17990 GLOBALNET COMMUNICATION LTD.
• AS133041 Tianxin Group Co., Limited
• AS17764 Hong Kong Metropolitan University
• AS4605 Hong Kong Baptist University
• AS38478 SunnyVision Limited
• AS55512 HONGKONG SUHUA TRADING LIMITED
• AS134753 West Kowloon Cultural District Authority
• AS12222 Akamai Technologies, Inc.
• AS17706 Airport Authority Hong Kong
• AS58708 CRP-HK
• AS139293 UFO Network Limited
• AS132252 12/F Trans Asia Centre, 18 Kin Hong Street

Adjacent networks

• AS9269 Hong Kong Broadband Network Ltd.
• AS17444 HKBN Enterprise Solutions Limited
• AS7540 HongKong Commercial Internet Exchange
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS55361 Lucky Tone Communications Ltd.
• AS133038 Exanet Limited
• AS18218 HK Science & Technology Parks Corporation
• AS10118 Hutchison Telephone Company Limited
• AS24482 SG.GS
• AS136501 HKBN Enterprise Solutions HK Limited
• AS55334 Access Solutions Limited
• AS17537 HKBN JOS Synergy (HK) Limited
• AS58411 Unit A-E, 13/F, Golden Sun Centre,
• AS10231 Tech-trans System Ltd.
• AS137927 Automated System (HK) Ltd.
• AS151358 Finovy Pte. Ltd.
• AS8359 MTS PJSC
• AS9930 TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia
• AS136574 Crewish Consultancy Limited
• AS59371 Dimension Network & Communication Limited
• AS133041 Tianxin Group Co., Limited
• AS17990 GLOBALNET COMMUNICATION LTD.
• AS17764 Hong Kong Metropolitan University
• AS4605 Hong Kong Baptist University
• AS38478 SunnyVision Limited

Internet exchanges

• Hong Kong Internet Exchange — Hong Kong, China