IPv4 prefix

51.149.0.0/16

IP Prefix (CIDR)
51.149.0.0/16
Subnet Mask
255.255.0.0
Address Count
65,536
Registration 1 of 4
Handle
DWP-MNT
Country
United Kingdom of Great Britain and Northern Ireland (GB)
Registry
RIPENCC
Registered Prefixes
51.149.0.0/23 (51.149.0.0 - 51.149.1.255)
51.149.3.0/24 (51.149.3.0 - 51.149.3.255)

51.149.4.0/22 (51.149.4.0 - 51.149.7.255)

51.149.8.0/22 (51.149.8.0 - 51.149.11.255)

51.149.12.0/23 (51.149.12.0 - 51.149.13.255)

51.149.15.0/24 (51.149.15.0 - 51.149.15.255)

51.149.16.0/20 (51.149.16.0 - 51.149.31.255)

51.149.16.0/24 (51.149.16.0 - 51.149.16.255)

51.149.18.0/24 (51.149.18.0 - 51.149.18.255)

51.149.19.0/24 (51.149.19.0 - 51.149.19.255)

51.149.20.0/24 (51.149.20.0 - 51.149.20.255)

51.149.21.0/24 (51.149.21.0 - 51.149.21.255)

51.149.32.0/19 (51.149.32.0 - 51.149.63.255)

51.149.64.0/18 (51.149.64.0 - 51.149.127.255)

51.149.64.0/19 (51.149.64.0 - 51.149.95.255)

51.149.128.0/18 (51.149.128.0 - 51.149.191.255)

51.149.192.0/19 (51.149.192.0 - 51.149.223.255)

51.149.224.0/20 (51.149.224.0 - 51.149.239.255)

51.149.240.0/21 (51.149.240.0 - 51.149.247.255)

51.149.248.0/22 (51.149.248.0 - 51.149.251.255)

51.149.252.0/23 (51.149.252.0 - 51.149.253.255)

51.149.252.0/24 (51.149.252.0 - 51.149.252.255)

51.149.254.0/23 (51.149.254.0 - 51.149.255.255)
Delegated Prefix
51.149.0.0/16 (51.149.0.0 - 51.149.255.255)
Registration 2 of 4
Handle
AS3257-NET-MNT
Country
United Kingdom of Great Britain and Northern Ireland (GB)
Registry
RIPENCC
Registered Prefix
51.149.2.0/24 (51.149.2.0 - 51.149.2.255)
Delegated Prefix
51.149.0.0/16 (51.149.0.0 - 51.149.255.255)
Registration 3 of 4
Handle
uk-caboffice-1-mnt
Country
United Kingdom of Great Britain and Northern Ireland (GB)
Registry
RIPENCC
Registered Prefixes
51.149.8.0/24 (51.149.8.0 - 51.149.8.255)
51.149.14.0/24 (51.149.14.0 - 51.149.14.255)

51.149.251.0/24 (51.149.251.0 - 51.149.251.255)
Delegated Prefix
51.149.0.0/16 (51.149.0.0 - 51.149.255.255)
Registration 4 of 4
Handle
MOJGOV-UK-MNT
Country
United Kingdom of Great Britain and Northern Ireland (GB)
Registry
RIPENCC
Registered Prefixes
51.149.249.0/24 (51.149.249.0 - 51.149.249.255)
51.149.250.0/24 (51.149.250.0 - 51.149.250.255)
Delegated Prefix
51.149.0.0/16 (51.149.0.0 - 51.149.255.255)
Announced Prefix Relationship Origin ASN Description Country First Address Last Address
51.149.0.0/23 More specific AS43519 Nominet UK United Kingdom of Great Britain and Northern Ireland (GB) 51.149.0.0 51.149.1.255
51.149.2.0/24 More specific AS207310 Cinos Communications Services Limited United Kingdom of Great Britain and Northern Ireland (GB) 51.149.2.0 51.149.2.255
51.149.8.0/24 More specific AS16509 Amazon.com Inc. United States of America (US) 51.149.8.0 51.149.8.255
51.149.9.0/24 More specific AS39326 Syntura Group Limited United Kingdom of Great Britain and Northern Ireland (GB) 51.149.9.0 51.149.9.255
51.149.10.0/23 More specific AS39326 Syntura Group Limited United Kingdom of Great Britain and Northern Ireland (GB) 51.149.10.0 51.149.11.255
51.149.14.0/24 More specific AS16509 Amazon.com Inc. United States of America (US) 51.149.14.0 51.149.14.255
51.149.16.0/24 More specific AS25180 Exponential-E Ltd. United Kingdom of Great Britain and Northern Ireland (GB) 51.149.16.0 51.149.16.255
51.149.18.0/23 More specific AS2856 British Telecommunications Limited United Kingdom of Great Britain and Northern Ireland (GB) 51.149.18.0 51.149.19.255
51.149.20.0/22 More specific AS25180 Exponential-E Ltd. United Kingdom of Great Britain and Northern Ireland (GB) 51.149.20.0 51.149.23.255
51.149.249.0/24 More specific AS25180 Exponential-E Ltd. United Kingdom of Great Britain and Northern Ireland (GB) 51.149.249.0 51.149.249.255
51.149.250.0/23 More specific AS16509 Amazon.com Inc. United States of America (US) 51.149.250.0 51.149.251.255
51.149.252.0/24 More specific AS16509 Amazon.com Inc. United States of America (US) 51.149.252.0 51.149.252.255
51.149.254.0/23 More specific AS43519 Nominet UK United Kingdom of Great Britain and Northern Ireland (GB) 51.149.254.0 51.149.255.255