AS23776 NEC Corporation

NEC - NEC Corporation · registered in Japan

IPv4 addresses6,1442 prefixes · <0.001% of announced IPv4

Rank in Japan#358largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#12,174of 79,396 networks with IPv4

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

CountryJapan745 ASNs registered there

Open AS23776 in ASN lookup Look up an IP in this network (121.100.8.1) All networks in Japan

IPv4 prefixes

All 2 prefixes, in address order.

121.100.8.0/21
203.179.16.0/20

IPv6 prefixes

All 1 prefix.

2401:2680::/32

Other ASNs named NEC Corporation

1 other network uses the same organisation name; together with AS23776 they announce 71,680 IPv4 addresses.

ASNNameIPv4 addresses

AS131161NECCN - NEC Corporation JP65,536

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ASNNameIPv4 addresses

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AS131954#360 LCNet - Kawaguchiko cable television Inc6,144

AS17680#361 SCS - SCSK Corporation6,144

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