IPv4 prefix

12.0.0.0/22

IP Prefix (CIDR): 12.0.0.0/22
Subnet Mask: 255.255.252.0
Address Count: 1,024
IP Range: 12.0.0.0 - 12.0.3.255
Subnet calculator: Calculate subnet details

Registered Owner

Owner: AT&T CBB TIER-3 LAB
Handle: C11309735
Address: 200 S Laurel AVE MIDDLETOWN NJ 07748 United States
Registry: ARIN
Registered Prefix: 12.0.0.0/22 (12.0.0.0 - 12.0.3.255)
Delegated Prefix: 12.0.0.0/8 (12.0.0.0 - 12.255.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
12.0.0.0/22	Exact	AS6269	AT&T Enterprises LLC	United States of America (US)	12.0.0.0	12.0.3.255