Autonomous System details
AS51191
Core-backbone GmbH — core-backbone.com
Summary
| Country |
 Germany
|
| Organization | Core-backbone GmbH |
| Domain | core-backbone.com |
| Number of IPv4 | 7,424 |
| Number of IPv6 | 6.3388× 1029 |
| AS Type | Hosting |
| Registry | RIPE NCC |
| Allocated | February 07, 2011 (about 14 years ago) |
| Updated | June 25, 2025 (about 10 days ago) |
IP Ranges
AS51191 announces 8 IPv4 ranges and 50 IPv6 ranges.
That's a total of 7,424 IPv4 addresses and 6.3388× 1029 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 91.232.96.0/23 |
Core-backbone GmbH
|
512 | RIPE NCC | ASSIGNED PI |
| 130.185.104.0/21 |
Xirra GmbH
|
2,048 | RIPE NCC | ASSIGNED PA |
| 185.24.68.0/22 |
 Xirra GmbH
|
1,024 | RIPE NCC | ASSIGNED PA |
| 185.108.216.0/22 |
Xirra GmbH - Various Customers
|
1,024 | RIPE NCC | ASSIGNED PA |
| 185.169.24.0/24 |
serverlet-net1
|
256 | RIPE NCC | ASSIGNED PA |
| 185.169.25.0/24 |
serverlet-net2
|
256 | RIPE NCC | ASSIGNED PA |
| 195.138.240.0/21 |
 Xirra GmbH
|
2,048 | RIPE NCC | ASSIGNED PA |
| 195.138.244.0/24 |
Core-backbone GmbH
|
256 | RIPE NCC | ALLOCATED PA |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2a01:4a0:2000::/48 |
Core-backbone GmbH
|
1.2089× 1024 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a01:4a0:2001::/48 |
Core-backbone GmbH
|
1.2089× 1024 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a01:4a0:2002::/48 |
Core-backbone GmbH
|
1.2089× 1024 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a06:4b00::/29 |
Xirra GmbH
|
6.3383× 1029 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3300::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3301::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3302::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3303::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3304::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3305::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3306::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3307::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3308::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3309::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:330a::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:330b::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:330c::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:330d::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:330e::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:330f::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3310::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3311::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3312::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3313::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3314::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3315::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3316::/48 |
GCORE-LABS
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3400::/48 |
VULTR
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3403::/48 |
VULTR
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3404::/48 |
VULTR
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:340b::/48 |
VULTR
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:340c::/48 |
VULTR
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3500::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3501::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3502::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3503::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3504::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3505::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3506::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3507::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3508::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:350c::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:350d::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:350e::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3510::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3511::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3512::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3513::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3514::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a06:4b01:3515::/48 |
DATAPACKET
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
Peers
AS51191 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
AS51191 connects to the global Internet via at least 1 upstream provider. In this setup, AS51191 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS51191 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.