AS173 Nippon Telegraph and Telephone Corporation 🇯🇵 JP
Announcing 2 prefixes, seen at the RIS collectors.
IPv4 prefixes
2
8,704 (34 × /24)
IPv6 prefixes
0
-
Upstreams
1
transit providers observed
Peers
5
settlement-free adjacencies
Downstreams
1
transit customers observed
Customer cone
2
ASes reachable through it
Registry and operator data
- AS number
- AS173
- Name
- Nippon Telegraph and Telephone Corporation
- Organisation
- NTT Network Innovation Laboratories
- Country
- 🇯🇵 JP
- RIR
- APNIC
- Allocated
- 2002-08-01
- Network type
- Educational/Research
- Traffic levels
- 20-100Mbps
- Scope
- Regional
- Peering policy
- Open
- IRR as-set
- AS-MAPOS
- PeeringDB
- net/7022
- Exchanges
- 1
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
2 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 163.138.160.0/19 v4 | RPKI valid | 40 | 17639173 | 2026-09-18 |
| 192.47.168.0/23 v4 | RPKI valid | 39 | 17639173 | 2026-09-18 |