$ 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 mid-size transit provider, registered in Vietnam. The system announces a respectable 41 728 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Vietnam.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- #5 in Vietnam — Top 10 by reach within country
Basic Information
- Country
- 🇻🇳 Vietnam
- Category
- Hosting
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- October 05, 2026
- Last Seen
- October 23, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 112 / 19
- IPv6 Prefixes (raw / aggregated)
- 11 / 4
- IPv4 Addresses
- 41 728
- Largest IPv4 Prefix
- /19 (8 192 addresses)
- Largest IPv6 Prefix
- /34
- Geolocated Countries
- 🇻🇳 Vietnam (41 728 IPs)
- Prefix Changed
- October 14, 2026
Reputation
- Reputation
- Good — 24 flagged IPs out of 41 728 total (0.06%)
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Peers
- 2 networks exchanging traffic without transit
- Downstream Customers
- 79 downstreams buying transit
- Unclassified
- 3 unclassified BGP neighbors
- Degree
- 85 unique BGP neighbors
- Reach
- 85 networks in customer cone
Upstream Providers (1)
- AS7552 — VIETEL-AS-AP
Prefix Lists
IPv4 Prefixes (112 total)
- 210.211.96.0/19 (8 192 addresses (/19 prefix))
- 125.212.192.0/20 (4 096 addresses (/20 prefix))
- 125.212.224.0/20 (4 096 addresses (/20 prefix))
- 171.244.0.0/20 (4 096 addresses (/20 prefix))
- 171.244.48.0/20 (4 096 addresses (/20 prefix))
- 27.71.16.0/21 (2 048 addresses (/21 prefix))
- 27.71.224.0/21 (2 048 addresses (/21 prefix))
- 115.84.176.0/21 (2 048 addresses (/21 prefix))
- 116.111.176.0/21 (2 048 addresses (/21 prefix))
- 171.226.8.0/21 (2 048 addresses (/21 prefix))
- 171.244.192.0/21 (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))
- 116.97.184.0/22 (1 024 addresses (/22 prefix))
- 103.175.146.0/23 (512 addresses (/23 prefix))
- 171.237.176.0/23 (512 addresses (/23 prefix))
- 116.97.189.0/24 (256 addresses (/24 prefix))
- 117.1.149.0/24 (256 addresses (/24 prefix))
- 117.1.150.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (11 total)
- 2401:5f80::/34
- 2401:5f80:4000::/35
- 2401:5f80:6000::/36
- 2406:4c40::/48