asn.dev

Routing security

AS219369 C2T - ConstructInTech Limited

Unclassified RIPE

RPKI valid 100% 8 of 8 announcements
RPKI invalid 0 none
No ROA 0 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 9 authorising this AS

Announcements

What this network originates

8 observed

Every prefix observed with AS219369 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
2a0b:9405::/32RPKI validIRR34
2a0b:9405::/33RPKI validIRR31
2a0b:9405:8000::/33RPKI validIRR31
87.199.140.0/23RPKI validIRR53
87.199.140.0/24RPKI validIRR51
87.199.141.0/24RPKI validIRR51
195.10.233.0/24RPKI validIRR54
2001:67c:b1c::/48RPKI validIRR34

RPKI · ROAs

Route origin authorisations

9 ROAs

Signed statements by address holders that AS219369 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
87.199.140.0/23/23RIPENCC
87.199.140.0/24/24RIPENCC
87.199.141.0/24/24RIPENCC
195.10.233.0/24/24RIPENCC
2001:67c:b1c::/48/48RIPENCC
2a0b:9402::/48/48RIPENCC
2a0b:9405::/32/32RIPENCC
2a0b:9405::/33/33RIPENCC
2a0b:9405:8000::/33/33RIPENCC

ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.

RPKI · ASPA

Declared transit providers

2 declared

This network has signed an ASPA record naming its transit providers. Each is compared against the upstreams observed in routing paths.

ASNetworkASPARouting paths
AS209505Unchained ISP LimitedDeclaredObserved
AS212895Johannes ErnstDeclaredObserved

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

8 objects · 0 not announced

Route objects naming AS219369 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.

PrefixSourceDescriptionMaintainerChangedRouting
87.199.140.0/23RIPE—UNCHAINED-MNT2026-09-23Announced
87.199.140.0/24RIPE—UNCHAINED-MNT2026-09-23Announced
87.199.141.0/24RIPE—UNCHAINED-MNT2026-09-23Announced
195.10.233.0/24RIPE—UNCHAINED-MNT2026-09-12Announced
2001:67c:b1c::/48RIPE—UNCHAINED-MNT2026-09-12Announced
2a0b:9405::/32RIPE—UNCHAINED-MNT2026-09-19Announced
2a0b:9405::/33RIPE—UNCHAINED-MNT2026-09-20Announced
2a0b:9405:8000::/33RIPE—UNCHAINED-MNT2026-09-20Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS219369 directly show who expects to carry it.

AS-setWhereRelationship
AS-HURRICANEV6RADBLists AS219369 as a direct member
AS-RETN-ACTUAL-V4RIPELists AS219369 as a direct member
AS-RETN-ACTUAL-V6RIPELists AS219369 as a direct member
AS-UNCHAINEDRIPELists AS219369 as a direct member
AS-VM-JE-CUSRIPELists AS219369 as a direct member
AS20473:AS-VULTRRADBLists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-AMSTERDAMRIPELists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-ASHBURNRIPELists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-AUCKLANDRIPELists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-FRANKFURTRIPELists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-FREMONTRIPELists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-KANSASCITYRIPELists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-NEWARKRIPELists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-SINGAPORERIPELists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-STOCKHOLMRIPELists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-SYDNEYRIPELists AS219369 as a direct member
AS52025:AS-DOWNSTREAMS-TORONTORIPELists AS219369 as a direct member

RPKI from rpki-client, validated 2026-10-15 12:09 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-15. Cross-check on bgp.he.net.