$ query “AS38731” --type=asn → 1 result(s)
AS38731 · VTDC-AS-VN
Vietel - CHT Compamy Ltd
AS38731 is run by Vietel - CHT Compamy Ltd and is a major transit provider, based in Vietnam. The system announces a respectable 40 704 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in Vietnam. Prefix announcements for this AS were recently updated.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- #6 in Vietnam — Top 10 by reach within country
Basic Information
- Country
- 🇻🇳 Vietnam
- Category
- Hosting
- Network Role
- Major Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- April 01, 2026
- Last Seen
- June 16, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 100 / 18
- IPv6 Prefixes (raw / aggregated)
- 9 / 3
- IPv4 Addresses
- 40 704
- Largest IPv4 Prefix
- /19 (8 192 addresses)
- Largest IPv6 Prefix
- /34
- Geolocated Countries
- 🇻🇳 Vietnam (51 968 IPs)
- Prefix Changed
- June 15, 2026
Reputation
- Reputation
- Good — 28 flagged IPs out of 40 704 total (0.07%)
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Peers
- 3 networks exchanging traffic without transit
- Downstream Customers
- 79 downstreams buying transit
- Unclassified
- 2 unclassified BGP neighbors
- Degree
- 86 unique BGP neighbors
- Reach
- 112 networks in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (100 total)
- 210.211.96.0/19 (8 192 addresses (/19 prefix))
- 171.244.48.0/20 (4 096 addresses (/20 prefix))
- 171.244.0.0/20 (4 096 addresses (/20 prefix))
- 125.212.192.0/20 (4 096 addresses (/20 prefix))
- 125.212.224.0/20 (4 096 addresses (/20 prefix))
- 27.71.16.0/21 (2 048 addresses (/21 prefix))
- 115.84.176.0/21 (2 048 addresses (/21 prefix))
- 27.71.224.0/21 (2 048 addresses (/21 prefix))
- 116.111.176.0/21 (2 048 addresses (/21 prefix))
- 171.244.192.0/21 (2 048 addresses (/21 prefix))
- 171.226.8.0/21 (2 048 addresses (/21 prefix))
- 45.117.160.0/22 (1 024 addresses (/22 prefix))
- 103.1.208.0/22 (1 024 addresses (/22 prefix))
- 103.175.146.0/23 (512 addresses (/23 prefix))
- 171.237.176.0/23 (512 addresses (/23 prefix))
- 117.1.150.0/24 (256 addresses (/24 prefix))
- 117.1.149.0/24 (256 addresses (/24 prefix))
- 116.97.184.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (9 total)
- 2401:5f80::/34
- 2401:5f80:4000::/35
- 2401:5f80:6000::/36