IPv4 prefix

81.2.0.0/18

IP Prefix (CIDR): 81.2.0.0/18
Subnet Mask: 255.255.192.0
Address Count: 16,384
IP Range: 81.2.0.0 - 81.2.63.255
Subnet calculator: Calculate subnet details

Registered Owners

Registration 1 of 2

Owner: PJSC Rostelecom
Handle: ORG-JR8-RIPE
Country: Russian Federation (RU)
Address: 14 A, Sinopskaya nabereznaya 191167 S.Peterburg RUSSIAN FEDERATION
Registry: RIPENCC
Registered Prefix: 81.2.0.0/18 (81.2.0.0 - 81.2.63.255)

Registration 2 of 2

Handle: PRIMORYE-NCC-MNT
Country: Russian Federation (RU)
Registry: RIPENCC
Registered Prefixes: 81.2.0.0/27 (81.2.0.0 - 81.2.0.31)
81.2.0.32/27 (81.2.0.32 - 81.2.0.63)
81.2.0.64/27 (81.2.0.64 - 81.2.0.95)
81.2.0.96/27 (81.2.0.96 - 81.2.0.127)
81.2.0.128/27 (81.2.0.128 - 81.2.0.159)
81.2.0.160/27 (81.2.0.160 - 81.2.0.191)
81.2.0.208/28 (81.2.0.208 - 81.2.0.223)
81.2.1.0/28 (81.2.1.0 - 81.2.1.15)
81.2.1.64/27 (81.2.1.64 - 81.2.1.95)
81.2.1.128/27 (81.2.1.128 - 81.2.1.159)
81.2.1.192/26 (81.2.1.192 - 81.2.1.255)
81.2.2.0/26 (81.2.2.0 - 81.2.2.63)
81.2.2.96/27 (81.2.2.96 - 81.2.2.127)
81.2.2.128/26 (81.2.2.128 - 81.2.2.191)
81.2.2.192/27 (81.2.2.192 - 81.2.2.223)
81.2.2.240/28 (81.2.2.240 - 81.2.2.255)
81.2.3.0/26 (81.2.3.0 - 81.2.3.63)
81.2.3.64/28 (81.2.3.64 - 81.2.3.79)
81.2.3.96/28 (81.2.3.96 - 81.2.3.111)
81.2.3.192/28 (81.2.3.192 - 81.2.3.207)
81.2.3.224/28 (81.2.3.224 - 81.2.3.239)
81.2.3.240/28 (81.2.3.240 - 81.2.3.255)
81.2.4.0/27 (81.2.4.0 - 81.2.4.31)
81.2.4.32/27 (81.2.4.32 - 81.2.4.63)
81.2.4.64/27 (81.2.4.64 - 81.2.4.95)
81.2.4.96/28 (81.2.4.96 - 81.2.4.111)
81.2.4.112/28 (81.2.4.112 - 81.2.4.127)
81.2.4.128/28 (81.2.4.128 - 81.2.4.143)
81.2.4.208/28 (81.2.4.208 - 81.2.4.223)
81.2.4.224/28 (81.2.4.224 - 81.2.4.239)
81.2.4.240/28 (81.2.4.240 - 81.2.4.255)
81.2.5.0/28 (81.2.5.0 - 81.2.5.15)
81.2.5.16/28 (81.2.5.16 - 81.2.5.31)
81.2.5.96/27 (81.2.5.96 - 81.2.5.127)
81.2.5.128/28 (81.2.5.128 - 81.2.5.143)
81.2.5.224/28 (81.2.5.224 - 81.2.5.239)
81.2.6.32/27 (81.2.6.32 - 81.2.6.63)
81.2.6.64/26 (81.2.6.64 - 81.2.6.127)
81.2.6.128/25 (81.2.6.128 - 81.2.6.255)
81.2.7.0/24 (81.2.7.0 - 81.2.7.255)
81.2.8.48/28 (81.2.8.48 - 81.2.8.63)
81.2.8.128/28 (81.2.8.128 - 81.2.8.143)
81.2.8.144/28 (81.2.8.144 - 81.2.8.159)
81.2.8.160/28 (81.2.8.160 - 81.2.8.175)
81.2.8.192/26 (81.2.8.192 - 81.2.8.255)
81.2.9.0/26 (81.2.9.0 - 81.2.9.63)
81.2.9.64/28 (81.2.9.64 - 81.2.9.79)
81.2.9.80/28 (81.2.9.80 - 81.2.9.95)
81.2.9.128/26 (81.2.9.128 - 81.2.9.191)
81.2.10.0/28 (81.2.10.0 - 81.2.10.15)
81.2.10.32/27 (81.2.10.32 - 81.2.10.63)
81.2.10.64/27 (81.2.10.64 - 81.2.10.95)
81.2.10.96/28 (81.2.10.96 - 81.2.10.111)
81.2.10.112/28 (81.2.10.112 - 81.2.10.127)
81.2.10.128/28 (81.2.10.128 - 81.2.10.143)
81.2.10.144/28 (81.2.10.144 - 81.2.10.159)
81.2.10.160/28 (81.2.10.160 - 81.2.10.175)
81.2.10.176/28 (81.2.10.176 - 81.2.10.191)
81.2.10.192/27 (81.2.10.192 - 81.2.10.223)
81.2.10.240/28 (81.2.10.240 - 81.2.10.255)
81.2.11.0/27 (81.2.11.0 - 81.2.11.31)
81.2.11.48/28 (81.2.11.48 - 81.2.11.63)
81.2.11.96/27 (81.2.11.96 - 81.2.11.127)
81.2.11.128/27 (81.2.11.128 - 81.2.11.159)
81.2.11.176/28 (81.2.11.176 - 81.2.11.191)
81.2.11.192/28 (81.2.11.192 - 81.2.11.207)
81.2.12.48/28 (81.2.12.48 - 81.2.12.63)
81.2.12.96/27 (81.2.12.96 - 81.2.12.127)
81.2.12.144/28 (81.2.12.144 - 81.2.12.159)
81.2.12.192/26 (81.2.12.192 - 81.2.12.255)
81.2.13.0/28 (81.2.13.0 - 81.2.13.15)
81.2.13.16/28 (81.2.13.16 - 81.2.13.31)
81.2.13.32/27 (81.2.13.32 - 81.2.13.63)
81.2.13.64/27 (81.2.13.64 - 81.2.13.95)
81.2.13.128/26 (81.2.13.128 - 81.2.13.191)
81.2.13.192/28 (81.2.13.192 - 81.2.13.207)
81.2.14.32/27 (81.2.14.32 - 81.2.14.63)
81.2.14.96/27 (81.2.14.96 - 81.2.14.127)
81.2.14.128/27 (81.2.14.128 - 81.2.14.159)
81.2.14.160/27 (81.2.14.160 - 81.2.14.191)
81.2.14.224/28 (81.2.14.224 - 81.2.14.239)
81.2.15.0/27 (81.2.15.0 - 81.2.15.31)
81.2.15.64/28 (81.2.15.64 - 81.2.15.79)
81.2.15.96/27 (81.2.15.96 - 81.2.15.127)
81.2.15.128/28 (81.2.15.128 - 81.2.15.143)
81.2.15.144/28 (81.2.15.144 - 81.2.15.159)
81.2.15.160/28 (81.2.15.160 - 81.2.15.175)
81.2.15.224/28 (81.2.15.224 - 81.2.15.239)
81.2.15.240/28 (81.2.15.240 - 81.2.15.255)
81.2.16.0/28 (81.2.16.0 - 81.2.16.15)
81.2.16.16/28 (81.2.16.16 - 81.2.16.31)
81.2.16.32/27 (81.2.16.32 - 81.2.16.63)
81.2.16.64/27 (81.2.16.64 - 81.2.16.95)
81.2.16.96/27 (81.2.16.96 - 81.2.16.127)
81.2.16.128/26 (81.2.16.128 - 81.2.16.191)
81.2.16.224/27 (81.2.16.224 - 81.2.16.255)
81.2.17.0/26 (81.2.17.0 - 81.2.17.63)
81.2.17.96/28 (81.2.17.96 - 81.2.17.111)
81.2.17.128/25 (81.2.17.128 - 81.2.17.255)
Delegated Prefix: 81.2.0.0/18 (81.2.0.0 - 81.2.63.255)

These results are partial. Additional registration records were omitted.

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
81.2.0.0/18	Exact	AS12332	PJSC Rostelecom	Russian Federation (RU)	81.2.0.0	81.2.63.255
81.2.0.0/24	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.0.0	81.2.0.255
81.2.2.0/24	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.2.0	81.2.2.255
81.2.6.0/23	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.6.0	81.2.7.255
81.2.8.0/24	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.8.0	81.2.8.255
81.2.10.0/24	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.10.0	81.2.10.255
81.2.12.0/24	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.12.0	81.2.12.255
81.2.14.0/24	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.14.0	81.2.14.255
81.2.17.0/24	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.17.0	81.2.17.255
81.2.26.0/24	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.26.0	81.2.26.255
81.2.44.0/23	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.44.0	81.2.45.255
81.2.48.0/23	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.48.0	81.2.49.255
81.2.56.0/21	More specific	AS12389	PJSC Rostelecom	Russian Federation (RU)	81.2.56.0	81.2.63.255