Routing security
AS202907 ATOMICIT
Unclassified RIPE
Announcements
What this network originates
Every prefix observed with AS202907 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 2a07:7140::/29 | RPKI valid | IRR | 31 |
| 185.150.144.0/22 | RPKI valid | IRR | 52 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS202907 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 185.150.144.0/22 | /22 | RIPENCC |
| 2a07:7140::/29 | /29 | RIPENCC |
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 |
|---|---|---|---|
| AS174 | Cogent Communications, LLC | Declared | Observed |
| AS2856 | British Telecommunications Limited | Declared | Observed |
| AS5089 | Virgin Media Limited | 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 AS202907 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 |
|---|---|---|---|---|---|
| 185.150.144.0/22 | RIPE | — | UK-ATOMIC-1-MNT | 2016-05-07 | Announced |
| 2a07:7140::/29 | RIPE | — | UK-ATOMIC-1-MNT | 2016-05-07 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS202907 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-BTGB-CUST | RIPE | Lists AS202907 as a direct member |
AS-NODE4 | RIPE | Lists AS202907 as a direct member |
AS-NTLI | RIPE | Lists AS202907 as a direct member |
AS51202:AS-ALL | ALTDB | Lists AS202907 as a direct member |
RPKI from rpki-client, validated 2026-11-01 13:04 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-11-01. Cross-check on bgp.he.net.