AS4713 NTT Communications Corporation (OCN)
AS4713 is operated by NTT Communications Corporation (OCN) and registered with APNIC (JP) since 1995-08-30.
It announces 183 IPv4 and 6 IPv6 prefixes, 40% of them RPKI valid.
RIPE RIS sees 4 upstream and peer networks and 119 downstream networks next to it.
PeeringDB lists it as an NSP network at 3 internet exchanges and 1 facility. Its peering policy is selective.
| Name | NTT Communications Corporation (OCN) |
|---|---|
| Registry (RIR) | APNIC |
| Country | Japan (JP) |
| Delegated on | 1995-08-30 |
| Network type | NSP, Regional |
| Peering policy | Selective |
| IRR as-set | AS-OCN |
| Prefixes (IPv4 / IPv6) | 183 / 6 |
| RPKI valid | 40% (76 / 189) |
| Upstreams and peers | 4 |
| Downstream networks | 119 |
| Website | ntt.com/en/index.html |
Routing health
- Partial result: RIPEstat did not return the overview in time.
- AS4713 announces 183 IPv4 and 6 IPv6 prefixes.
- 76 of 189 announced prefixes are RPKI valid.
- 113 announced prefixes are not covered by a ROA of AS4713 (they may have none, or another network’s).
- 4 upstreams and peers, 119 downstream networks seen.
For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.
Announced prefixes 189
- 27.114.0.0/17
- 27.132.8.0/24
- 27.133.240.0/22
- 36.52.223.0/24
- 58.88.0.0/13
- 60.32.0.0/12
- 61.4.152.0/23
- 61.4.154.0/23
- 61.4.156.0/22
- 61.4.160.0/24
- 61.4.161.0/24
- 61.4.162.0/24
- 61.4.163.0/24
- 61.4.164.0/22
- 61.4.168.0/22
- 61.4.172.0/22
- 61.112.0.0/15
- 61.114.112.0/21
- 61.114.120.0/21
- 61.118.0.0/15
- 61.126.0.0/15
- 61.199.0.0/16
- 61.207.0.0/16
- 61.208.0.0/16
- 61.214.0.0/16
- 103.163.250.0/23
- 114.144.0.0/12
- 114.160.0.0/11
- 118.0.0.0/12
- 118.16.0.0/13
- 119.161.104.0/21
- 121.112.0.0/13
- 122.1.0.0/16
- 122.16.0.0/12
- 123.216.0.0/13
- 123.224.0.0/14
- 124.84.0.0/14
- 124.96.0.0/13
- 125.170.0.0/16
- 125.172.0.0/14
- 125.200.0.0/13
- 133.153.0.0/16
- 133.153.22.0/24
- 138.212.224.0/24
- 138.212.225.0/24
- 138.212.227.0/24
- 138.212.228.0/24
- 138.212.229.0/24
- 138.212.230.0/24
- 138.212.238.0/24
- 138.212.239.0/24
- 138.212.241.0/24
- 138.212.245.0/24
- 138.212.249.0/24
- 138.212.252.0/24
- 150.5.64.0/18
- 150.35.0.0/16
- 150.35.235.0/24
- 150.61.4.0/24
- 150.61.8.0/24
- 150.61.13.0/24
- 150.61.17.0/24
- 150.61.31.0/24
- 150.61.33.0/24
- 150.61.35.0/24
- 150.61.41.0/24
- 150.61.46.0/24
- 150.61.49.0/24
- 150.61.53.0/24
- 150.61.64.0/18
- 150.61.70.0/24
- 150.61.128.0/17
- 153.124.192.0/21
- 153.128.0.0/10
- 153.192.0.0/11
- 153.224.0.0/12
- 153.240.0.0/13
- 153.248.0.0/14
- 153.252.0.0/15
- 157.64.0.0/16
- 157.120.124.0/24
- 157.120.125.0/24
- 157.120.126.0/24
- 157.120.127.0/24
- 159.211.22.0/24
- 159.211.224.0/24
- 159.211.237.0/24
- 159.211.248.0/24
- 164.43.141.0/24
- 164.162.4.0/24
- 164.162.5.0/24
- 164.162.6.0/24
- 164.162.7.0/24
- 164.162.16.0/24
- 165.108.0.0/16
- 165.241.0.0/21
- 165.241.8.0/22
- 165.241.12.0/22
- 165.241.16.0/20
- 165.241.32.0/19
Showing the first 100.
Upstreams and peers 4
The networks RIPE RIS sees next to AS4713 in BGP paths, the most visible first.
Peering
Peering policy: Selective. Suggested max-prefix limits: 0 IPv4, 0 IPv6. PeeringDB record
| Exchange | Ports | Speed | Route server |
|---|---|---|---|
| DIX-IE | 1 | 10G | No |
| JPNAP Osaka | 2 | 1.4T | No |
| JPNAP Tokyo: Peering | 4 | 3.6T | No |
| Facility | City | Country |
|---|---|---|
| NTT DOCOMO BUSINESS Tokyo (NW1) | Tokyo | JP |
More about AS4713
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 01:00 UTC. The country is where the AS number was registered, not necessarily where the network operates.