IP subnet details

81.128.0.0/11

AS2856  — British Telecommunications PLC

Summary

Country
GB United Kingdom
Domain bt.com
Size 2,097,152
Registry RIPE NCC
Network Name BT-N3SP

Whois

inetnum: 81.128.0.0 - 81.159.255.255
org: ORG-BPIS1-RIPE
netname: UK-BT-20020725
country: GB
admin-c: FLS15-RIPE
tech-c: FLS15-RIPE
status: ALLOCATED PA
mnt-by: RIPE-NCC-HM-MNT
mnt-by: BTNET-INFRA-MNT
mnt-routes: BTNET-INFRA-MNT
created: 2002-09-10T14:35:54Z
last-modified: 2024-03-11T16:17:01Z
source: RIPE

organisation: ORG-BPIS1-RIPE
org-name: British Telecommunications PLC
country: GB
org-type: LIR
address: PP1, Floor1, Orion, Adastral Park, Martlesham Heath
address: IP5 3RE
address: Ipswich
address: UNITED KINGDOM
phone: +44 (0)20 7356 5000
abuse-c: AR13878-RIPE
mnt-ref: BTNET-MNT
mnt-ref: BTNET-INFRA-MNT
mnt-ref: RIPE-NCC-HM-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: BTNET-INFRA-MNT
admin-c: FLS15-RIPE
admin-c: MS35380-RIPE
admin-c: GF1231-RIPE
created: 2004-04-17T12:11:50Z
last-modified: 2025-03-24T17:20:04Z
source: RIPE
e-mail: [email protected]

role: BT IP Address Admin
address: PP 1, Floor 1
address: Orion Building
address: Adastral Park
address: Martlesham Heath
address: Ipswich
address: IP5 3RE
address: UK
e-mail: [email protected]
e-mail: [email protected]
remarks:
remarks:
nic-hdl: FLS15-RIPE
mnt-by: BTNET-INFRA-MNT
created: 2002-08-29T06:26:48Z
last-modified: 2023-06-21T11:23:36Z
source: RIPE

route: 81.128.0.0/11
descr: BT Public Internet Service
origin: AS2856
mnt-by: BTNET-INFRA-MNT
notify: [email protected]
created: 2002-10-22T13:45:17Z
last-modified: 2014-07-31T07:51:30Z
source: RIPE

CIDR IP address subranges within 81.128.0.0/11 subnet

  • 81.128.0.0/19
  • 81.128.32.0/19
  • 81.128.64.0/19
  • 81.128.96.0/19
  • 81.128.128.0/19
  • 81.128.160.0/19
  • 81.128.192.0/19
  • 81.128.224.0/19
  • 81.129.0.0/19
  • 81.129.32.0/19
  • 81.129.64.0/19
  • 81.129.96.0/19
  • 81.129.128.0/19
  • 81.129.160.0/19
  • 81.129.192.0/19
  • 81.129.224.0/19
  • 81.130.0.0/19
  • 81.130.32.0/19
  • 81.130.64.0/19
  • 81.130.96.0/19
  • 81.130.128.0/19
  • 81.130.160.0/19
  • 81.130.192.0/19
  • 81.130.224.0/19
  • 81.131.0.0/19
  • 81.131.32.0/19
  • 81.131.64.0/19
  • 81.131.96.0/19
  • 81.131.128.0/19
  • 81.131.160.0/19
  • 81.131.192.0/19
  • 81.131.224.0/19
  • 81.132.0.0/19
  • 81.132.32.0/19
  • 81.132.64.0/19
  • 81.132.96.0/19
  • 81.132.128.0/19
  • 81.132.160.0/19
  • 81.132.192.0/19
  • 81.132.224.0/19
  • 81.133.0.0/19
  • 81.133.32.0/19
  • 81.133.64.0/19
  • 81.133.96.0/19
  • 81.133.128.0/19
  • 81.133.160.0/19
  • 81.133.192.0/19
  • 81.133.224.0/19
  • 81.134.0.0/19
  • 81.134.32.0/19
  • 81.134.64.0/19
  • 81.134.96.0/19
  • 81.134.128.0/19
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  • 81.135.0.0/19
  • 81.135.32.0/19
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  • 81.135.96.0/19
  • 81.135.128.0/19
  • 81.135.160.0/19
  • 81.135.192.0/19
  • 81.135.224.0/19
  • 81.136.0.0/19
  • 81.136.32.0/19
  • 81.136.64.0/19
  • 81.136.96.0/19
  • 81.136.128.0/19
  • 81.136.160.0/19
  • 81.136.192.0/19
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  • 81.137.0.0/19
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  • 81.137.64.0/19
  • 81.137.96.0/19
  • 81.137.128.0/19
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  • 81.137.192.0/19
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  • 81.139.0.0/19
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  • 81.139.64.0/19
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  • 81.139.128.0/19
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  • 81.140.0.0/19
  • 81.140.32.0/19
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  • 81.140.192.0/19
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  • 81.141.0.0/19
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  • 81.141.64.0/19
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  • 81.141.224.0/19
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  • 81.142.224.0/19
  • 81.143.0.0/19
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  • 81.144.0.0/19
  • 81.144.32.0/19
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  • 81.144.128.0/19
  • 81.144.160.0/19
  • 81.144.192.0/19
  • 81.144.224.0/19
  • 81.145.0.0/19
  • 81.145.32.0/19
  • 81.145.64.0/19
  • 81.145.96.0/19
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  • 81.145.160.0/19
  • 81.145.192.0/19
  • 81.145.224.0/19
  • 81.146.0.0/19
  • 81.146.32.0/19
  • 81.146.64.0/19
  • 81.146.96.0/19
  • 81.146.128.0/19
  • 81.146.160.0/19
  • 81.146.192.0/19
  • 81.146.224.0/19
  • 81.147.0.0/19
  • 81.147.32.0/19
  • 81.147.64.0/19
  • 81.147.96.0/19
  • 81.147.128.0/19
  • 81.147.160.0/19
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  • 81.147.224.0/19
  • 81.148.0.0/19
  • 81.148.32.0/19
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  • 81.149.0.0/19
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  • 81.150.0.0/19
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  • 81.150.64.0/19
  • 81.150.96.0/19
  • 81.150.128.0/19
  • 81.150.160.0/19
  • 81.150.192.0/19
  • 81.150.224.0/19
  • 81.151.0.0/19
  • 81.151.32.0/19
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  • 81.151.96.0/19
  • 81.151.128.0/19
  • 81.151.160.0/19
  • 81.151.192.0/19
  • 81.151.224.0/19
  • 81.152.0.0/19
  • 81.152.32.0/19
  • 81.152.64.0/19
  • 81.152.96.0/19
  • 81.152.128.0/19
  • 81.152.160.0/19
  • 81.152.192.0/19
  • 81.152.224.0/19
  • 81.153.0.0/19
  • 81.153.32.0/19
  • 81.153.64.0/19
  • 81.153.96.0/19
  • 81.153.128.0/19
  • 81.153.160.0/19
  • 81.153.192.0/19
  • 81.153.224.0/19
  • 81.154.0.0/19
  • 81.154.32.0/19
  • 81.154.64.0/19
  • 81.154.96.0/19
  • 81.154.128.0/19
  • 81.154.160.0/19
  • 81.154.192.0/19
  • 81.154.224.0/19
  • 81.155.0.0/19
  • 81.155.32.0/19
  • 81.155.64.0/19
  • 81.155.96.0/19
  • 81.155.128.0/19
  • 81.155.160.0/19
  • 81.155.192.0/19
  • 81.155.224.0/19
  • 81.156.0.0/19
  • 81.156.32.0/19
  • 81.156.64.0/19
  • 81.156.96.0/19
  • 81.156.128.0/19
  • 81.156.160.0/19
  • 81.156.192.0/19
  • 81.156.224.0/19
  • 81.157.0.0/19
  • 81.157.32.0/19
  • 81.157.64.0/19
  • 81.157.96.0/19
  • 81.157.128.0/19
  • 81.157.160.0/19
  • 81.157.192.0/19
  • 81.157.224.0/19
  • 81.158.0.0/19
  • 81.158.32.0/19
  • 81.158.64.0/19
  • 81.158.96.0/19
  • 81.158.128.0/19
  • 81.158.160.0/19
  • 81.158.192.0/19
  • 81.158.224.0/19
  • 81.159.0.0/19
  • 81.159.32.0/19
  • 81.159.64.0/19
  • 81.159.96.0/19
  • 81.159.128.0/19
  • 81.159.160.0/19
  • 81.159.192.0/19
  • 81.159.224.0/19

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