AS131161 NEC Corporation

NECCN - NEC Corporation · registered in Japan

IPv4 addresses65,5363 prefixes · 0.002% of announced IPv4

Rank in Japan#115largest network in JP by IPv4 space, of 724 · 0.04% of JP

Rank worldwide#2,906of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)4 prefixes

CountryJapan745 ASNs registered there

Open AS131161 in ASN lookup Look up an IP in this network (43.222.0.1) All networks in Japan

IPv4 prefixes

All 3 prefixes, in address order.

43.222.0.0/18
43.222.64.0/18
43.222.128.0/17

IPv6 prefixes

All 4 prefixes.

2400:53e0::/35
2400:53e0:2000::/35
2400:53e0:4000::/34
2400:53e0:8000::/33

Other ASNs named NEC Corporation

1 other network uses the same organisation name; together with AS131161 they announce 71,680 IPv4 addresses.

ASNNameIPv4 addresses

AS23776NEC - NEC Corporation JP6,144

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS17932#112 JAIST - Japan Advanced Institute of Science and Technology65,792

AS17944#113 JWA - Japan Weather Association65,792

AS9367#114 ISCT - Institute of Science Tokyo65,536

AS2500#116 WIDE-BB - WIDE Project65,536

AS9991#117 SHUDO-U - Hiroshima Shudo University65,536

AS10014#118 NIHON-U - Nihon University65,536

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