AS13205
British Telecommunications PLC — bt.com
Summary
| Country |
 United Kingdom
|
| Organization | British Telecommunications PLC |
| Domain | bt.com |
| Number of IPv4 | 26,880 |
| Number of IPv6 | 0 |
| AS Type | ISP |
| Registry | RIPE NCC |
| Allocated | January 01, 1970 (about 56 years ago) |
| Updated | November 15, 2017 (about 7 years ago) |
IP Ranges
AS13205 announces 23 IPv4 ranges and 0 IPv6 range.
That's a total of 26,880 IPv4 address and 0 IPv6 address.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 31.11.56.0/23 |
 BT Dcs Niewegein Data Centre
|
512 | RIPE NCC | ASSIGNED PA |
| 31.11.58.0/24 |
BT Dcs Niewegein Data Centre
|
256 | RIPE NCC | ASSIGNED PA |
| 78.109.0.0/20 |
BT Dcs Hempoint Data Centre
|
4,096 | RIPE NCC | ASSIGNED PA |
| 78.109.0.0/24 |
BT Dcs Hempoint Data Centre
|
256 | RIPE NCC | ASSIGNED PA |
| 78.109.5.0/24 |
BT Dcs Amsterdam International Data Centre
|
256 | RIPE NCC | ASSIGNED PA |
| 78.109.6.0/24 |
BT Global Services Dcs Hempoint Data Centre
|
256 | RIPE NCC | ASSIGNED PA |
| 78.109.7.0/24 |
BT Dcs BT Dcs Hempoint Data Centre
|
256 | RIPE NCC | ASSIGNED PA |
| 78.109.9.0/24 |
BT Dual Site Internet
|
256 | RIPE NCC | ASSIGNED PA |
| 78.109.10.0/24 |
BT Dcs Amsterdam International Data Centre
|
256 | RIPE NCC | ASSIGNED PA |
| 78.109.11.0/24 |
BT Dcs Amsterdam International Data Centre
|
256 | RIPE NCC | ASSIGNED PA |
| 137.213.239.0/24 |
Sopra Steria Limited
|
256 | RIPE NCC | LEGACY |
| 137.213.252.0/23 |
Sopra Steria Limited
|
512 | RIPE NCC | LEGACY |
| 192.31.31.0/24 |
British Telecommunications PLC
|
256 | RIPE NCC | LEGACY |
| 192.65.153.0/24 |
BT Group Computing Services
|
256 | RIPE NCC | LEGACY |
| 193.177.184.0/24 |
WAVIN NEDERLAND BV
|
256 | RIPE NCC | ASSIGNED PI |
| 193.177.185.0/24 |
WAVIN NEDERLAND BV
|
256 | RIPE NCC | ASSIGNED PI |
| 217.140.0.0/20 |
BT Dcs Amsterdam International Data Centre
|
4,096 | RIPE NCC | ASSIGNED PA |
| 217.140.12.0/24 |
BT Global Services Dcs Hempoint Data Centre
|
256 | RIPE NCC | ASSIGNED PA |
| 217.140.12.0/22 |
BT Global Services Dcs Hempoint Data Centre
|
1,024 | RIPE NCC | ASSIGNED PA |
| 217.140.13.0/24 |
BT Global Services Dcs Hempoint Data Centre
|
256 | RIPE NCC | ASSIGNED PA |
| 217.140.16.0/20 |
 BT Global Services Dcs Madrid International Data Centre
|
4,096 | RIPE NCC | ASSIGNED PA |
| 217.140.24.0/23 |
BT Dcs Madrid International Data Centre
|
512 | RIPE NCC | ASSIGNED PA |
| 217.140.32.0/19 |
BT Global Services Dcs Cardiff Bay Data Centre
|
8,192 | RIPE NCC | ASSIGNED PA |
Peers
AS13205 does not have any direct peering agreements. Instead, its global connectivity is achieved through transit providers. While this setup ensures comprehensive reach, future peering could reduce latency and optimize route efficiency.
Upstreams
AS13205 connects to the global Internet via at least 2 upstream providers. In this setup, AS13205 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS13205 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.