Routing security
AS19751 CCRTC
Unclassified ARIN
Announcements
What this network originates
Every prefix observed with AS19751 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 64.18.140.0/22 | RPKI valid | IRR | 51 |
| 75.103.128.0/18 | RPKI valid | IRR | 52 |
| 75.103.192.0/19 | RPKI valid | IRR | 52 |
| 137.49.224.0/19 | RPKI valid | IRR | 52 |
| 172.96.132.0/22 | RPKI valid | IRR | 51 |
| 209.132.160.0/20 | RPKI valid | IRR | 52 |
| 2606:b500::/32 | RPKI valid | IRR | 29 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS19751 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 64.18.140.0/22 | /24 | ARIN |
| 75.103.128.0/18 | /24 | ARIN |
| 75.103.192.0/19 | /24 | ARIN |
| 137.49.224.0/19 | /19 | ARIN |
| 172.96.132.0/22 | /24 | ARIN |
| 209.132.160.0/20 | /24 | ARIN |
| 2606:b500::/32 | /32 | ARIN |
ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.
RPKI · ASPA
Declared transit providers
This network has signed an ASPA record naming its transit providers. Each is compared against the upstreams observed in routing paths.
| AS | Network | ASPA | Routing paths |
|---|---|---|---|
| AS1299 | Arelion Sweden AB | Declared | Observed |
| AS3356 | Level 3 Parent, LLC | Declared | Observed |
| AS6939 | Hurricane Electric LLC | Declared | Observed |
| AS32703 | Zayo Bandwidth | Declared | Observed |
An observed upstream that is not declared is not necessarily a leak: our upstream inference cannot tell a transit provider from a peer seen in the same position. A declared provider that is never observed is usually a backup path.
IRR
Registered route objects
Route objects naming AS19751 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.
| Prefix | Source | Description | Maintainer | Changed | Routing |
|---|---|---|---|---|---|
| 64.18.140.0/22 | ARIN | Endeavor Communications | MNT-CCCC | 2022-12-20 | Announced |
| 75.103.128.0/18 | ARIN | Endeavor Communications | MNT-CCCC | 2022-12-20 | Announced |
| 75.103.192.0/19 | ARIN | Endeavor Communications | MNT-CCCC | 2022-12-20 | Announced |
| 137.49.224.0/19 | ARIN | Endeavor Communications | MNT-CCCC | 2026-02-20 | Announced |
| 172.96.132.0/22 | ARIN | Endeavor Communications | MNT-CCCC | 2022-12-20 | Announced |
| 209.132.160.0/20 | ARIN | Endeavor Communications | MNT-CCCC | 2022-12-20 | Announced |
| 2606:b500::/32 | ARIN | Endeavor Communications | MNT-CCCC | 2022-12-20 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS19751 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS1299:AS-TWELVE99-NA-V4 | RIPE | Lists AS19751 as a direct member |
AS1299:AS-TWELVE99-NA-V6 | RIPE | Lists AS19751 as a direct member |
AS13681:AS-INDYPEERS | ARIN | Lists AS19751 as a direct member |
AS19751:AS-CCRTC | ARIN | Lists AS19751 as a direct member |
RPKI from rpki-client, validated 2026-10-26 12:04 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-26. Cross-check on bgp.he.net.