AS1101
SURF B.V. — surfcert.nl
Summary
| Country |
 Netherlands
|
| Organization | SURF B.V. |
| Domain | surfcert.nl |
| Number of IPv4 | 1,904,128 |
| Number of IPv6 | 2.4179× 1024 |
| AS Type | Education |
| Registry | RIPE NCC |
| Allocated | August 21, 2002 (about 22 years ago) |
| Updated | December 20, 2024 (about 3 months ago) |
IP Ranges
AS1101 announces 13 IPv4 ranges and 2 IPv6 ranges.
That's a total of 1,904,128 IPv4 addresses and 2.4179× 1024 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 44.137.0.0/16 |
 Amateur Radio Digital Communications
|
65,536 | ARIN | ALLOCATION |
| 145.99.0.0/16 |
COOL-DOWN-i
|
65,536 | RIPE NCC | LEGACY |
| 145.102.4.0/23 |
Onweer Service Provider
|
512 | RIPE NCC | LEGACY |
| 145.192.0.0/12 |
SURF B.V.
|
1,048,576 | RIPE NCC | LEGACY |
| 145.208.0.0/13 |
SURF B.V.
|
524,288 | RIPE NCC | LEGACY |
| 145.216.0.0/15 |
SURF B.V.
|
131,072 | RIPE NCC | LEGACY |
| 145.220.0.0/16 |
SURF B.V.
|
65,536 | RIPE NCC | LEGACY |
| 185.100.59.0/24 |
NL-DARKNESS-REIGNS-EFNET
|
256 | RIPE NCC | ASSIGNED PA |
| 192.12.54.0/24 |
IP-EEND-192-12-54
|
256 | RIPE NCC | LEGACY |
| 192.16.200.0/24 |
Surfnet BV
|
256 | RIPE NCC | LEGACY |
| 192.42.116.0/22 |
Hart Voor Internetvrijheid
|
1,024 | RIPE NCC | LEGACY |
| 192.42.128.0/22 |
Surfnet BV
|
1,024 | RIPE NCC | LEGACY |
| 192.150.94.0/24 |
IP-EEND-192-150-94
|
256 | RIPE NCC | LEGACY |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2001:67c:6ec::/48 |
SURF B.V.
|
1.2089× 1024 | RIPE NCC | ASSIGNED PI |
| 2001:67c:12d8::/48 |
Darkness Reigns (holding) B.V.
|
1.2089× 1024 | RIPE NCC | ASSIGNED PI |
Peers
AS1101 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
AS1101 connects to the global Internet via at least 1 upstream provider. In this setup, AS1101 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.