$ query “AS4651” --type=asn → 1 result(s)
AS4651 · NTPCL-AS-AP
National Telecom Public Company Limited
AS4651 is owned by National Telecom Public Company Limited and is a mid-size transit provider, established in Thailand. The system announces 9 472 IPv4 addresses, and supports IPv6. Its primary geographic footprint is in Thailand, with additional presence in the United States and the United Kingdom, and a smaller footprint in another country.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- #6 in Thailand — Top 10 by reach within country
Basic Information
- Country
- 🇹🇭 Thailand
- Category
- Internet Service Provider
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- March 04, 2026
- Last Seen
- April 29, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 35 / 27
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 9 472
- Largest IPv4 Prefix
- /22 (1 024 addresses)
- Largest IPv6 Prefix
- /48
- Geolocated Countries
- 🇹🇭 Thailand (8 960 IPs), 🇺🇸 United States (1 024 IPs), 🇬🇧 United Kingdom (768 IPs) and 1 more
- Prefix Changed
- March 07, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 11 upstreams providing transit
- Peers
- 301 networks exchanging traffic without transit
- Downstream Customers
- 38 downstreams buying transit
- Unclassified
- 8 unclassified BGP neighbors
- Degree
- 358 unique BGP neighbors
- Reach
- 4 585 networks in customer cone
Upstream Providers (11)
- AS6939 — HURRICANE
- AS174 — COGENT-174 (Tier-1 transit)
- AS1299 — TWELVE99 (Tier-1 transit)
- AS3549 — LVLT-3549
- AS2914 — NTT-DATA-2914 (Tier-1 transit)
- AS3491 — PCCWG-APAC-HK (Tier-1 transit)
- AS4637 — ASN-TELSTRA-GLOBAL
- AS6453 — AS6453 (Tier-1 transit)
- AS4766 — KIXS-AS
- AS5511 — OPENTRANSIT (Tier-1 transit)
- and 1 more
Prefix Lists
IPv4 Prefixes (35 total)
- 122.155.244.0/22 (1 024 addresses (/22 prefix))
- 122.155.224.0/22 (1 024 addresses (/22 prefix))
- 93.188.128.0/23 (512 addresses (/23 prefix))
- 163.171.120.0/23 (512 addresses (/23 prefix))
- 122.155.236.0/23 (512 addresses (/23 prefix))
- 61.19.0.0/23 (512 addresses (/23 prefix))
- 122.155.235.0/24 (256 addresses (/24 prefix))
- 61.19.4.0/24 (256 addresses (/24 prefix))
- 61.19.14.0/24 (256 addresses (/24 prefix))
- 122.155.229.0/24 (256 addresses (/24 prefix))
- 122.155.230.0/24 (256 addresses (/24 prefix))
- 122.155.232.0/24 (256 addresses (/24 prefix))
- 61.19.9.0/24 (256 addresses (/24 prefix))
- 61.19.7.0/24 (256 addresses (/24 prefix))
- 122.155.238.0/24 (256 addresses (/24 prefix))
- 122.155.240.0/24 (256 addresses (/24 prefix))
- 122.155.243.0/24 (256 addresses (/24 prefix))
- 66.114.56.0/24 (256 addresses (/24 prefix))
- 148.253.59.0/24 (256 addresses (/24 prefix))
- 163.171.105.0/24 (256 addresses (/24 prefix))
- 163.171.106.0/24 (256 addresses (/24 prefix))
- 163.171.108.0/24 (256 addresses (/24 prefix))
- 61.19.2.0/24 (256 addresses (/24 prefix))
- 174.35.3.0/24 (256 addresses (/24 prefix))
- 174.35.53.0/24 (256 addresses (/24 prefix))
- 185.27.231.0/24 (256 addresses (/24 prefix))
- 202.47.253.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (1 total)
- 2001:c38:5000::/48