$ query “AS17645” --type=asn → 1 result(s)

AS17645 — NTT-SG-AP

NTT Singapore Pte Ltd

AS17645 is a mid-size transit provider run by NTT Singapore Pte Ltd, registered in Singapore. The network announces a respectable 82 944 IPv4 addresses, including a /16. Supports IPv6.

Basic Information

Country
🇸🇬 Singapore
Category
Hosting
Network Role
Mid-size Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Last Changed
March 04, 2026
Last Seen
March 05, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
12 / 4
IPv6 Prefixes (raw / aggregated)
1 / 1
IPv4 Addresses
82 944
Largest IPv4 Prefix
/16 (65 536 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇸🇬 SG (8 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Pristine — 0 flagged IPs out of 82 944 total (0.00%)

Connectivity Summary

Upstream Providers
4 upstream autonomous systems providing transit
Peers
4 autonomous systems exchanging traffic without transit fees
Downstream Customers
8 downstream autonomous systems buying transit
Degree
17 unique BGP neighbors (providers + customers + peers)
Reach
18 — customer cone size measuring network influence
Degree Rank
#8 214
Reach Rank
#2 379

Upstream Providers (4)

  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS3491 — CONSOLE-CONNECT-ASN (Tier-1 transit)
  • AS4637 — ASN-TELSTRA-GLOBAL
  • AS38561 — DOM-AU-AP

Prefix Lists

IPv4 Prefixes (12 total)

  • 116.51.0.0/16 (65 536 addresses)
  • 58.65.0.0/19 (8 192 addresses)
  • 202.136.160.0/19 (8 192 addresses)
  • 175.28.8.0/22 (1 024 addresses)

IPv6 Prefixes (1 total)

  • 2402:2c00::/32