AS1921
Ipcom GmbH — cert.at
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Summary
| Country |
 Austria
|
| Organization | Ipcom GmbH |
| Domain | cert.at |
| Number of IPv4 | 2,816 |
| Number of IPv6 | 1.2089× 1025 |
| AS Type | Hosting |
| Registry | RIPE NCC |
| Allocated | August 21, 2002 (about 23 years ago) |
| Updated | August 12, 2025 (about 16 days ago) |
IP Ranges
AS1921 announces 11 IPv4 ranges and 10 IPv6 ranges.
That's a total of 2,816 IPv4 addresses and 1.2089× 1025 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 91.237.67.0/24 |
 Name Srs Ab
|
256 | RIPE NCC | ASSIGNED PI |
| 185.80.188.0/24 |
Anycast-Test-Prefix-1
|
256 | RIPE NCC | ASSIGNED PA |
| 185.80.190.0/24 |
Anycast-Test-Prefix-3
|
256 | RIPE NCC | ASSIGNED PA |
| 185.80.191.0/24 |
Anycast-Test-Prefix-4
|
256 | RIPE NCC | ASSIGNED PA |
| 185.102.12.0/24 |
LINX
|
256 | RIPE NCC | ASSIGNED PA |
| 192.174.68.0/24 |
Ipcom GmbH
|
256 | RIPE NCC | LEGACY |
| 193.46.128.0/24 |
Nic.at GmbH
|
256 | RIPE NCC | ASSIGNED PI |
| 193.46.133.0/24 |
Nic.at GmbH
|
256 | RIPE NCC | ASSIGNED PI |
| 193.46.134.0/24 |
Nic.at GmbH
|
256 | RIPE NCC | ASSIGNED PI |
| 193.227.117.0/24 |
 1api GmbH
|
256 | RIPE NCC | ASSIGNED PI |
| 194.0.25.0/24 |
Nic.at GmbH
|
256 | RIPE NCC | ASSIGNED ANYCAST |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2001:678:20::/48 |
Nic.at GmbH
|
1.2089× 1024 | RIPE NCC | ASSIGNED ANYCAST |
| 2001:67c:1bc::/48 |
Nic.at GmbH
|
1.2089× 1024 | RIPE NCC | ASSIGNED PI |
| 2a02:850:ffe0::/48 |
Nic.at GmbH
|
1.2089× 1024 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a02:850:ffe5::/48 |
Nic.at GmbH
|
1.2089× 1024 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a02:850:ffe6::/48 |
Nic.at GmbH
|
1.2089× 1024 | RIPE NCC | ALLOCATED-BY-RIR |
| 2a02:850:ffff::/48 |
Nic.at And Rcodezero Linx
|
1.2089× 1024 | RIPE NCC | ALLOCATED-BY-LIR |
| 2a04:2b00:14cc::/48 |
 CentralNic-Anycast-I
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a05:7f00:188::/48 |
Anycast-Test-Prefix-1
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a05:7f00:190::/48 |
Anycast-Test-Prefix-3
|
1.2089× 1024 | RIPE NCC | ASSIGNED |
| 2a0b:8e00::/48 |
Name Srs Ab
|
1.2089× 1024 | RIPE NCC | ALLOCATED-BY-RIR |
Peers
AS1921 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
AS1921 connects to the global Internet via at least 16 upstream providers. In this setup, AS1921 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.