AS10004 Phoenix Communications Inc.

AS-PHOENIX-J - Phoenix Communications Inc. · registered in Japan

IPv4 addresses26,36811 prefixes · <0.001% of announced IPv4

Rank in Japan#221largest network in JP by IPv4 space, of 724 · 0.02% of JP

Rank worldwide#5,312of 79,396 networks with IPv4

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

CountryJapan745 ASNs registered there

Open AS10004 in ASN lookup Look up an IP in this network (103.226.44.1) All networks in Japan

IPv4 prefixes

All 11 prefixes, in address order.

103.226.44.0/22
115.179.57.0/24
115.179.200.0/24
133.247.90.0/23
133.247.100.0/22
133.247.128.0/21
133.247.232.0/23
133.247.234.0/24
157.101.128.0/19
210.185.128.0/19
211.133.144.0/20

IPv6 prefixes

All 1 prefix.

2401:440::/32

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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