Autonomous System

AS17645 NTT Singapore Pte Ltd

ISPActiveSingaporeAPNIC

AS17645 (NTT-SG-AP) is an ISP network operated by NTT Singapore Pte Ltd in Singapore, registered with APNIC. It has 12 IPv4 prefixes with 87,296 addresses and 1 IPv6 prefix, which makes it the 2,525th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses87,296in 12 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#2,525of 82,200 active ASNs
Abuser scoreVery Low0.01% of its addresses flagged · method

Details

OrganizationNTT Singapore Pte Ltd
AS nameNTT-SG-AP
Websitentt.com.sg
Country Singapore (SG)
Network typeISP
RegistryAPNIC
Abuse contactap.eis-netops@global.ntt
Registered—
Last updated2025-01-30

IPv4 prefixes

12 prefixes · 87,296 addresses
NetworkAddressesFirst – last address
116.51.0.0/1665,536116.51.0.0 – 116.51.255.255
58.65.0.0/198,19258.65.0.0 – 58.65.31.255
202.136.160.0/198,192202.136.160.0 – 202.136.191.255
58.65.16.0/221,02458.65.16.0 – 58.65.19.255
175.28.8.0/221,024175.28.8.0 – 175.28.11.255
202.136.188.0/221,024202.136.188.0 – 202.136.191.255
58.65.24.0/2351258.65.24.0 – 58.65.25.255
116.51.8.0/23512116.51.8.0 – 116.51.9.255
202.136.168.0/23512202.136.168.0 – 202.136.169.255
116.51.4.0/24256116.51.4.0 – 116.51.4.255
202.136.166.0/24256202.136.166.0 – 202.136.166.255
202.136.170.0/24256202.136.170.0 – 202.136.170.255

IPv6 prefixes

1 prefix
  • 2402:2c00::/32

Query AS17645 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS17645&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS17645, with or without a key:

curl "https://api.ipapi.is/?q=116.51.0.1"

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