Colocenter B.V.
AS58291 — colocenter.nl
Summary
| Country |
 Netherlands
|
| Organization | Colocenter B.V. |
| Domain | colocenter.nl |
| Number of IPv4 | 10,496 |
| Number of IPv6 | 7.9228× 1029 |
| AS Type | Hosting |
| Registry | RIPE NCC |
| Allocated | June 15, 2012 (about 14 years ago) |
| Updated | May 27, 2026 (about 4 months ago) |
IP Ranges
AS58291 announces 19 IPv4 ranges and 4 IPv6 ranges.
That's a total of 10,496 IPv4 addresses and 7.9228× 1029 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 5.39.184.0/21 |
Colocenter B.V.
|
2,048 | RIPE NCC | ASSIGNED PA |
| 5.253.237.0/24 |
 GLOBALIT DOO
|
256 | RIPE NCC | ASSIGNED PA |
| 23.230.49.0/24 |
 Energy Group Networks
|
256 | ARIN | REASSIGNMENT |
| 23.230.52.0/24 |
 Energy Group Networks
|
256 | ARIN | ALLOCATION |
| 45.11.28.0/22 |
LINUXCOLO
|
1,024 | RIPE NCC | ASSIGNED PA |
| 45.43.153.0/24 |
GLOBALIT DOO
|
256 | RIPE NCC | ASSIGNED PA |
| 45.141.20.0/24 |
GLOBALIT DOO
|
256 | RIPE NCC | ASSIGNED PA |
| 85.208.49.0/24 |
GLOBALIT DOO
|
256 | RIPE NCC | ASSIGNED PA |
| 91.205.193.0/24 |
Cloudmonsters B.V.
|
256 | RIPE NCC | ASSIGNED PI |
| 92.60.66.0/24 |
 GLOBALIT DOO
|
256 | RIPE NCC | ASSIGNED PA |
| 104.165.118.0/24 |
Energy Group Networks
|
256 | ARIN | ALLOCATION |
| 156.67.120.0/24 |
GLOBALIT DOO
|
256 | RIPE NCC | LEGACY |
| 185.79.152.0/22 |
nl-colocenter
|
1,024 | RIPE NCC | ASSIGNED PA |
| 185.102.68.0/22 |
COMPUTEST-LOADTESTING
|
1,024 | RIPE NCC | ASSIGNED PA |
| 185.140.184.0/22 |
Colocenter B.V.
|
1,024 | RIPE NCC | ALLOCATED PA |
| 195.12.63.0/24 |
Colocenter B.V.
|
256 | RIPE NCC | ASSIGNED PI |
| 199.104.32.0/24 |
 Uab Simurgh
|
256 | RIPE NCC | LEGACY |
| 213.156.28.0/22 |
Defion Security Netherlands B.V.
|
1,024 | RIPE NCC | ALLOCATED PA |
| 216.172.144.0/24 |
Highlight Marketing
|
256 | ARIN | REASSIGNMENT |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2001:67c:cdc::/48 |
Stefan Van Westering Trading AS Skywest
|
1.2089× 1024 | RIPE NCC | ASSIGNED PI |
| 2a01:4c01::/32 |
Defion Security Netherlands B.V.
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a02:f640::/29 |
Colocenter B.V.
|
6.3383× 1029 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a0e:5700::/32 |
LINUXCOLO
|
7.9228× 1028 | RIPE NCC | ALLOCATED-BY-LIR |
Peers
AS58291 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS58291 connects to the global Internet via at least 7 upstream providers. In this setup, AS58291 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS58291 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS58291's role in extending Internet access beyond its own infrastructure.