IPv4 prefix

125.4.16.0/21

IP Prefix (CIDR)

125.4.16.0/21

Subnet Mask

255.255.248.0

Address Count

2,048

IP Range

125.4.16.0 - 125.4.23.255

Subnet calculator

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Registered Owner

Owner

Japan Network Information Center

Handle

JNIC1-AP

Country

Japan (JP)

Address

Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda Chiyoda-ku, Tokyo 101-0047, Japan

Registry

JPNIC

Registered Prefix

125.4.16.0/21 (125.4.16.0 - 125.4.23.255)

Delegated Prefix

125.4.0.0/16 (125.4.0.0 - 125.4.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
125.4.0.0/16	Covering	AS9617	JCOM Co. Ltd.	Japan (JP)	125.4.0.0	125.4.255.255