AS7686 JCOM Co., Ltd.

ATNETHOME - JCOM Co., Ltd. · registered in Japan

IPv4 addresses8,1922 prefixes · <0.001% of announced IPv4

Rank in Japan#329largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#10,501of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS7686 in ASN lookup Look up an IP in this network (61.211.144.1) All networks in Japan

IPv4 prefixes

All 2 prefixes, in address order.

61.211.144.0/20
210.228.0.0/20

Other ASNs named JCOM Co., Ltd.

10 other networks use the same organisation name; together with AS7686 they announce 6,733,824 IPv4 addresses.

ASNNameIPv4 addresses

AS9824JTCL-JP-AS - JCOM Co., Ltd. JP4,745,216

AS9617ZAQ - JCOM Co., Ltd. JP1,163,264

AS4721JCN - JCOM Co., Ltd. JP631,808

AS9378CABLENET - JCOM Co., Ltd. JP45,056

AS18136CTA - JCOM Co., Ltd. JP43,008

AS18134KITANET - JCOM Co., Ltd. JP29,696

AS23788HICT - JCOM Co., Ltd. JP24,576

AS24276ICNET - JCOM Co., Ltd. JP20,480

AS23790KCN-TV - JCOM Co., Ltd. JP18,432

AS45675KMN-TOKYO - JCOM Co., Ltd. JP4,096

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS18526#326 DDPS - DDPS Networks, LLC8,192

AS45689#327 CONVIVIALNET - Convivial Net8,192

AS7678#328 PROX - Prox System Design Inc.8,192

AS9358#330 Finder - OPTAGE Inc.8,192

AS17518#331 SHIOJIRI - Shiojiri City8,192

AS17694#332 JPN-DBJP - Deutsche Bank Group, Japan BGP connection8,192

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