$ query “AS10099” --type=asn → 1 result(s)
AS10099 · UNICOM-GLOBAL
China Unicom (Hong Kong) Operations Limited
AS10099 is operated by China Unicom (Hong Kong) Operations Limited and serves as a mid-size transit provider, based in Hong Kong SAR China. The system announces a respectable 34 816 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in Hong Kong SAR China, with additional presence in the United States and Singapore, and smaller footprints in 14 additional countries. Prefix announcements for this AS were recently updated.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- #8 in Hong Kong SAR China — Top 10 by reach within country
Basic Information
- Country
- 🇭🇰 Hong Kong SAR China
- Category
- Hosting
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- June 01, 2026
- Last Seen
- October 21, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 100 / 37
- IPv6 Prefixes (raw / aggregated)
- 2 / 1
- IPv4 Addresses
- 34 816
- Largest IPv4 Prefix
- /19 (8 192 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇭🇰 Hong Kong SAR China (25 776 IPs), 🇺🇸 United States (1 504 IPs), 🇸🇬 Singapore (1 280 IPs) and 14 more
- Prefix Changed
- October 15, 2026
Reputation
- Reputation
- Good — 2 flagged IPs out of 34 816 total (0.01%)
Connectivity Summary
- Upstream Providers
- 12 upstreams providing transit
- Peers
- 412 networks exchanging traffic without transit
- Downstream Customers
- 31 downstreams buying transit
- Unclassified
- 9 unclassified BGP neighbors
- Degree
- 464 unique BGP neighbors
- Reach
- 109 networks in customer cone
Upstream Providers (12)
- AS3356 — LEVEL3 (Tier-1 transit)
- AS174 — COGENT-174 (Tier-1 transit)
- AS1299 — TWELVE99 (Tier-1 transit)
- AS20485 — TRANSTELECOM
- AS3257 — GTT-BACKBONE (Tier-1 transit)
- AS2914 — NTT-DATA-2914 (Tier-1 transit)
- AS4657 — STARHUB-INTERNET
- AS6453 — AS6453 (Tier-1 transit)
- AS4637 — ASN-TELSTRA-GLOBAL
- AS7552 — VIETEL-AS-AP
- and 2 more
Prefix Lists
IPv4 Prefixes (100 total)
- 203.160.64.0/19 (8 192 addresses (/19 prefix))
- 119.252.136.0/21 (2 048 addresses (/21 prefix))
- 162.219.32.0/21 (2 048 addresses (/21 prefix))
- 202.77.16.0/21 (2 048 addresses (/21 prefix))
- 43.251.12.0/22 (1 024 addresses (/22 prefix))
- 43.252.84.0/22 (1 024 addresses (/22 prefix))
- 43.255.168.0/22 (1 024 addresses (/22 prefix))
- 46.19.164.0/22 (1 024 addresses (/22 prefix))
- 103.1.64.0/22 (1 024 addresses (/22 prefix))
- 103.69.184.0/22 (1 024 addresses (/22 prefix))
- 103.107.88.0/22 (1 024 addresses (/22 prefix))
- 103.214.64.0/22 (1 024 addresses (/22 prefix))
- 118.26.144.0/22 (1 024 addresses (/22 prefix))
- 162.219.84.0/22 (1 024 addresses (/22 prefix))
- 162.245.124.0/22 (1 024 addresses (/22 prefix))
- 162.247.4.0/22 (1 024 addresses (/22 prefix))
- 162.255.48.0/22 (1 024 addresses (/22 prefix))
- 46.19.162.0/23 (512 addresses (/23 prefix))
- 103.77.22.0/23 (512 addresses (/23 prefix))
- 103.86.14.0/23 (512 addresses (/23 prefix))
- 103.228.68.0/23 (512 addresses (/23 prefix))
- 103.239.176.0/23 (512 addresses (/23 prefix))
- 118.26.148.0/23 (512 addresses (/23 prefix))
- 118.26.156.0/23 (512 addresses (/23 prefix))
- 162.219.82.0/23 (512 addresses (/23 prefix))
- 38.69.152.0/24 (256 addresses (/24 prefix))
- 61.14.200.0/24 (256 addresses (/24 prefix))
- 103.77.20.0/24 (256 addresses (/24 prefix))
- 103.203.184.0/24 (256 addresses (/24 prefix))
- 103.228.70.0/24 (256 addresses (/24 prefix))
- 103.229.246.0/24 (256 addresses (/24 prefix))
- 103.239.178.0/24 (256 addresses (/24 prefix))
- 118.26.153.0/24 (256 addresses (/24 prefix))
- 118.26.155.0/24 (256 addresses (/24 prefix))
- 118.26.158.0/24 (256 addresses (/24 prefix))
- 162.219.80.0/24 (256 addresses (/24 prefix))
- 206.52.7.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (2 total)
- 2401:8a00::/32