AS4697 Nippon Telegraph and Telephone Corporation

NTTV6NET - Nippon Telegraph and Telephone Corporation · registered in Japan

IPv4 addresses3,3287 prefixes · <0.001% of announced IPv4

Rank in Japan#422largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#17,414of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryJapan745 ASNs registered there

Open AS4697 in ASN lookup Look up an IP in this network (192.16.178.1) All networks in Japan

IPv4 prefixes

All 7 prefixes, in address order.

192.16.178.0/24
192.26.93.0/24
192.47.162.0/23
192.47.164.0/23
192.47.174.0/23
192.47.176.0/22
192.172.237.0/24

IPv6 prefixes

All 1 prefix.

2001:fa8::/32

Other ASNs named Nippon Telegraph and Telephone Corporation

2 other networks use the same organisation name; together with AS4697 they announce 53,760 IPv4 addresses.

ASNNameIPv4 addresses

AS2511CORE - Nippon Telegraph and Telephone Corporation JP41,728

AS173NTTECL-AS - Nippon Telegraph and Telephone Corporation JP8,704

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS149428#419 CODE200-AS-AP - Code200, UAB3,584

AS18127#420 Ibaraki - Ibaraki Prefectural Government3,584

AS18383#421 CAHI-AS-JP - CAHI Corporation,3,584

AS151374#423 IWK-WORKS - IX-layers, Inc.3,328

AS2515#424 JPNIC - Japan Network Information Center3,072

AS17934#425 JGNv6 - National Institute of Information and Communications Technology3,072

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources