ıpdex
Japan

AS173

Nippon Telegraph and Telephone Corporation Education registered in Japan

2IPv4 prefixes
0IPv6 prefixes
100%RPKI-valid
#7,795AS Rank
327/327RIS visibility
#651Rank in Japan
2002-08-01Allocated

Nippon Telegraph and Telephone Corporation (AS173) — Education, registered in Japan. announces 2 IPv4 prefixes + 0 IPv6 prefixes. Rank in Japan: #651. Allocated: 2002-08-01.

Announced prefixes · 2

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 2 IPv4 · 0 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

0 1 2 2026-06-12 2026-06-13
Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)
Data table
DayAnnounced prefixes
2026-06-122
2026-06-132

Internet Exchanges · 1

AS topology · Customer cone 2

Providers · 2

Peers · 9

  • AS6939 Hurricane Electric LLC
  • AS9002 RETN Limited
  • AS20485 Joint Stock Company TransTeleCom
  • AS8966 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
  • AS24482 SG.GS
  • AS4775 Globe Telecoms

Customers · 1

  • AS2511 Nippon Telegraph and Telephone Corporation
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