AS17645 NTT-SG-AP - ASN - NTT SINGAPORE PTE LTD
🇸🇬Org handle: ORG-NSPL9-AP
ASN - NTT SINGAPORE PTE LTD
APNICallocated
Announced Prefixes (BGP)
13total
12 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)82,944
Announced (BGP)87,296
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Routing hygiene
Score 11/100 · Low riskRPKI ROA coverage
100%
no RPKI invalid prefixes
IRR route objects
69.2%
no origin mismatches
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
3
diversity 38/100
- 31% of announced prefixes (4 of 13) have no IRR route object for this ASN
Based on 13 announced prefixes, updated daily (2026-10-25). How the score works · RPKI explained
Announced Prefixes
(BGP)13|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | - | 2026-10-26 | |
| Valid | APNIC | 2026-10-26 | |
| Valid | APNIC | 2026-10-26 | |
| Valid | - | 2026-10-26 | |
| Valid | APNIC | 2026-10-26 | |
| Valid | APNIC | 2026-10-26 | |
| Valid | - | 2026-10-26 | |
| Valid | - | 2026-10-26 | |
| Valid | APNIC | 2026-10-26 | |
| Valid | APNIC | 2026-10-26 |
1-10 of 13
1 / 2
Allocated Prefixes
(RIR)5Prefix | Country | RIR | Status |
|---|---|---|---|
| 58.65.0.0/19 | 🇸🇬 SG | APNIC | allocated |
| 116.51.0.0/16 | 🇸🇬 SG | APNIC | allocated |
| 175.28.8.0/22 | 🇸🇬 SG | APNIC | allocated |
| 202.136.160.0/19 | 🇸🇬 SG | APNIC | allocated |
| 2402:2c00::/32 | 🇸🇬 SG | APNIC | allocated |
All 13 announced prefixes of AS17645 →
Downstream Customers(1)
| ASN | Name |
|---|---|
| AS56227 | 🇦🇺ZURICH-AU - Zurich Financial Services Australia Limited |
BGP Neighbours
(seen in AS paths)Upstreams (3)
Networks AS17645 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (9)
Networks whose own prefixes AS17645 passes on: usually its customers.
- AS10204Arcnet NTT MSC ISP14
- AS56227Zurich Financial Services Australia Limited4
- AS139896Kim Chuan Telecommunications Complex3
- AS10236AXA Technology Services Asia (HK) Limited1
- AS38566NTTCTNET1
- AS45794NTT Singapore IP Network (RFC 2270)1
- AS46078Dimension Data AP Kaki Bukit Singapore1
- AS131789Asahi Kasei International IT Asia Pacific1
- AS132018NATIXIS1
Other adjacent networks (1)
Adjacent to AS17645 in the transit part of AS paths: peers, providers or customers.
- AS4657StarHub134
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- How to run an ASPA checkVerify the upstream providers listed above
- IPv4 transfers in the APNIC regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/17645Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/17645" | jq