$ query “AS151797” --type=asn → 1 result(s)
AS151797 · CTCSCITECHLIMITED-AS-AP
CTCSCI TECH LIMITED
AS151797 is owned by CTCSCI TECH LIMITED and is a hosting access provider, registered in Hong Kong SAR China. The system announces 512 IPv4 addresses, and supports IPv6. Its primary geographic footprint is in Hong Kong SAR China.
Basic Information
- Country
- 🇭🇰 Hong Kong SAR China
- Category
- Hosting
- Network Role
- Access Provider
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- March 04, 2026
- Last Seen
- June 22, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 3 / 1
- IPv6 Prefixes (raw / aggregated)
- 3 / 3
- IPv4 Addresses
- 512
- Largest IPv4 Prefix
- /23 (512 addresses)
- Largest IPv6 Prefix
- /48
- Geolocated Countries
- 🇭🇰 Hong Kong SAR China (1 024 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Downstream Customers
- 1 downstream buying transit
- Degree
- 2 unique BGP neighbors
- Reach
- 22 networks in customer cone
Upstream Providers (1)
- AS9886 — CTCSCITECHLIMITED-AS-AP
Prefix Lists
IPv4 Prefixes (3 total)
- 103.77.210.0/23 (512 addresses (/23 prefix))
IPv6 Prefixes (3 total)
- 2401:3620:211::/48
- 2401:3620:221::/48
- 2401:3620:231::/48