$ query “AS4637” --type=asn → 1 result(s)
AS4637 — ASN-TELSTRA-GLOBAL
Telstra International Limited
AS4637 is a major transit provider operated by Telstra International Limited, based in Hong Kong SAR China. The network announces an impressive 1.1 million IPv4 addresses, including a /15. Supports IPv6.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- #22 by Reach — Top 100 by customer cone size
- #1 in Hong Kong SAR China — Top 10 by reach within country
Basic Information
- Country
- 🇭🇰 Hong Kong SAR China
- Category
- Internet Service Provider
- Network Role
- Major Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- March 04, 2026
- Last Seen
- March 04, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 664 / 267
- IPv6 Prefixes (raw / aggregated)
- 13 / 4
- IPv4 Addresses
- 1 146 368
- Largest IPv4 Prefix
- /15 (131 072 addresses)
- Largest IPv6 Prefix
- /31
- Geolocated Countries
- 🇬🇧 GB (102 IPs), 🇺🇸 US (106 IPs), 🇯🇵 JP (106 IPs), 🇭🇰 HK, 🇮🇳 IN, 🇸🇬 SG, 🇦🇺 AU, 🇲🇾 MY, 🇵🇭 PH, 🇹🇭 TH, 🇹🇼 TW, 🇩🇪 DE, 🇰🇷 KR, 🇮🇩 ID and 15 more
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs out of 1 146 368 total (0.00%)
Connectivity Summary
- Upstream Providers
- 6 upstream autonomous systems providing transit
- Peers
- 282 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 385 downstream autonomous systems buying transit
- Degree
- 683 unique BGP neighbors (providers + customers + peers)
- Reach
- 47 354 — customer cone size measuring network influence
- Degree Rank
- #216
- Reach Rank
- #22
- Country Rank
- #1
Upstream Providers (6)
Prefix Lists
IPv4 Prefixes (664 total)
- 195.152.0.0/15 (131 072 addresses)
- 134.159.0.0/16 (65 536 addresses)
- 146.101.0.0/16 (65 536 addresses)
- 154.32.0.0/16 (65 536 addresses)
- 42.99.128.0/17 (32 768 addresses)
- 64.145.128.0/17 (32 768 addresses)
- 74.3.0.0/17 (32 768 addresses)
- 202.84.128.0/17 (32 768 addresses)
- 61.14.128.0/18 (16 384 addresses)
- 61.87.128.0/18 (16 384 addresses)
- 120.138.192.0/18 (16 384 addresses)
- 122.152.128.0/18 (16 384 addresses)
- 125.252.64.0/18 (16 384 addresses)
- 199.0.0.0/18 (16 384 addresses)
- 202.64.128.0/18 (16 384 addresses)
- 202.126.128.0/18 (16 384 addresses)
- 202.147.0.0/18 (16 384 addresses)
- 202.227.128.0/18 (16 384 addresses)
- 203.123.128.0/18 (16 384 addresses)
- 203.192.128.0/18 (16 384 addresses)
- 207.15.64.0/18 (16 384 addresses)
- 208.9.128.0/18 (16 384 addresses)
- 61.8.32.0/19 (8 192 addresses)
- 63.160.224.0/19 (8 192 addresses)
- 63.161.224.0/19 (8 192 addresses)
- 63.164.160.0/19 (8 192 addresses)
- 63.172.128.0/19 (8 192 addresses)
- 63.175.32.0/19 (8 192 addresses)
- 65.160.160.0/19 (8 192 addresses)
- 65.161.96.0/19 (8 192 addresses)
- 65.163.96.0/19 (8 192 addresses)
- 65.166.32.0/19 (8 192 addresses)
- 65.166.192.0/19 (8 192 addresses)
- 65.167.0.0/19 (8 192 addresses)
- 65.167.160.0/19 (8 192 addresses)
- 65.170.224.0/19 (8 192 addresses)
- 65.171.32.0/19 (8 192 addresses)
- 65.171.192.0/19 (8 192 addresses)
- 65.173.160.0/19 (8 192 addresses)
- 65.174.32.0/19 (8 192 addresses)
- 101.167.192.0/19 (8 192 addresses)
- 144.223.96.0/19 (8 192 addresses)
- 144.224.32.0/19 (8 192 addresses)
- 144.224.64.0/19 (8 192 addresses)
- 144.230.0.0/19 (8 192 addresses)
- 144.230.96.0/19 (8 192 addresses)
- 154.8.0.0/19 (8 192 addresses)
- 193.82.96.0/19 (8 192 addresses)
- 193.82.128.0/19 (8 192 addresses)
- 193.82.192.0/19 (8 192 addresses)
IPv6 Prefixes (13 total)
- 2001:cc8::/31
- 2001:cb0::/32
- 2403:e800::/32
- 2a02:1620::/32