AS4697Nippon Telegraph and Telephone Corporation
JapanRegistryAPNICAs of 14th November 2026, AS4697 (Nippon Telegraph and Telephone…), a network registered in Japan with APNIC, originates 7 IPv4 prefixes covering 3.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 19,878th-largest of the 80,844 networks we see originating IPv4, and the 443rd-largest of 737 in Japan. It is seen behind 8 upstream networks, most often AS7521 (INTERNET MULTIFEED CO.) and AS6939 (Hurricane Electric LLC). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS4697 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS4697 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
24
adjacent networks
- Upstreams
- 833%
- Peers
- 1667%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS7521INTERNET MULTIFEED CO. | JP | Peer | 526 | 124 |
| AS6939Hurricane Electric LLC |  US | Peer | 35 | 5 |
| AS24482SG.GS |  SG | Peer | 15 | 3 |
| AS49544i3D.net B.V |  NL | Peer | 8 | 2 |
| AS4775Globe Telecoms |  PH | Adjacent | 8 | 2 |
| AS9002RETN Limited |  GB | Peer | 8 | 2 |
| AS8966Etisalat (E&) |  AE | Peer | 7 | 1 |
| AS7713PT Telkom Indonesia Tbk |  ID | Peer | 3 | 3 |
Prefixes
The largest blocks AS4697 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 192.47.176.0/22 | 1k | 78/78 |
| 192.47.162.0/23 | 512 | 78/78 |
| 192.47.164.0/23 | 512 | 78/78 |
| 192.47.174.0/23 | 512 | 78/78 |
| 192.16.178.0/24 | 256 | 78/78 |
| 192.26.93.0/24 | 256 | 78/78 |
| 192.172.237.0/24 | 256 | 78/78 |
| 2001:fa8::/32 | 4.3B × /64 | 64/64 |
Routing health
How AS4697's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid0.0%0
- Invalid0.0%0
- No ROA100.0%8
Propagation
- Globally propagated90% of full-feed peers or more100.0%8
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 7 prefixes
IPv6 — 1 prefixes
- /324.3B × /64100.0%1
Recent changes
Announcements that started or stopped since 15th Oct 2026.
No announcement by AS4697 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.