IPv4 prefix

138.4.0.0/16

IP Prefix (CIDR): 138.4.0.0/16
Subnet Mask: 255.255.0.0
Address Count: 65,536
IP Range: 138.4.0.0 - 138.4.255.255
Subnet calculator: Calculate subnet details

Registered Owner

Owner: Universidad Politecnica de Madrid
Handle: ORG-UPDM2-RIPE
Country: Spain (ES)
Address: Calle Ramiro de Maeztu, 7, 28040 MADRID
Registry: RIPENCC
Registered Prefix: 138.4.0.0/16 (138.4.0.0 - 138.4.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
138.4.0.0/16	Exact	AS766	Entidad Publica Empresarial Red.es	Spain (ES)	138.4.0.0	138.4.255.255