Routing security
AS197545 ERA4-ASN
Unclassified RIPE
Announcements
What this network originates
Every prefix observed with AS197545 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 2a0c:bbc0::/32 | RPKI valid | IRR | 30 |
| 2a0c:bbc0::/33 | RPKI valid | IRR | 29 |
| 2a0c:bbc0:8000::/33 | RPKI valid | IRR | 1 |
| 95.36.128.0/18 | RPKI valid | IRR | 52 |
| 95.36.128.0/19 | RPKI valid | IRR | 52 |
| 95.36.160.0/20 | RPKI valid | IRR covering | 50 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS197545 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 95.36.128.0/18 | /24 | RIPENCC |
| 2a0c:bbc0::/32 | /48 | 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 |
| AS49158 | WIFINITY NETWORKS 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 AS197545 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 |
|---|---|---|---|---|---|
| 95.36.128.0/20 | RIPE | — | LIR-UK-ERA4LIMITED-1-MNT | 2026-09-20 | Not announced |
| 95.36.144.0/20 | RIPE | — | LIR-UK-ERA4LIMITED-1-MNT | 2026-10-09 | Not announced |
| 95.36.160.0/19 | RIPE | — | LIR-UK-ERA4LIMITED-1-MNT | 2026-06-30 | Not announced |
| 95.36.128.0/18 | RIPE | — | LIR-UK-ERA4LIMITED-1-MNT | 2026-06-30 | Announced |
| 95.36.128.0/19 | RIPE | — | LIR-UK-ERA4LIMITED-1-MNT | 2026-06-30 | Announced |
| 2a0c:bbc0::/32 | RIPE | — | LIR-UK-ERA4LIMITED-1-MNT | 2026-05-15 | Announced |
| 2a0c:bbc0::/33 | RIPE | — | LIR-UK-ERA4LIMITED-1-MNT | 2026-06-30 | Announced |
| 2a0c:bbc0:8000::/33 | RIPE | — | LIR-UK-ERA4LIMITED-1-MNT | 2026-06-30 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS197545 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-BTGB-CUST | RIPE | Lists AS197545 as a direct member |
AS-NEXTCONNEX | RIPE | Lists AS197545 as a direct member |
AS-WIFINITY | RIPE | Lists AS197545 as a direct member |
AS53667:AS-CUSTOMERS | RADB | Lists AS197545 as a direct member |
RPKI from rpki-client, validated 2026-10-18 12:08 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-18. Cross-check on bgp.he.net.