IPv4 prefix

148.74.0.0/15

IP Prefix (CIDR): 148.74.0.0/15
Subnet Mask: 255.254.0.0
Address Count: 131,072
IP Range: 148.74.0.0 - 148.75.255.255
Subnet calculator: Calculate subnet details

Registered Owners

Registration 1 of 2

Owner: Optimum Online
Handle: OPTO
Address: 111 new south RD Hicksville NY 11801 United States
Registry: ARIN
Registered Prefix: 148.74.0.0/15 (148.74.0.0 - 148.75.255.255)

Registration 2 of 2

Owner: Optimum Online (Cablevision Systems)
Handle: C06598499
Address: 111 New South Road Hicksville NY 11801 United States
Registry: ARIN
Registered Prefix: 148.74.0.0/22 (148.74.0.0 - 148.74.3.255)
Delegated Prefix: 148.74.0.0/15 (148.74.0.0 - 148.75.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
148.74.0.0/15	Exact	AS6128	Cablevision Systems Corp.	United States of America (US)	148.74.0.0	148.75.255.255