asn.dev

Routing security

AS23028 TEAM-CYMRU

Unclassified ARIN

RPKI valid 2% 1 of 44 announcements
RPKI invalid 0 none
No ROA 43 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 5 authorising this AS

Announcements

What this network originates

44 observed

Every prefix observed with AS23028 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
38.229.33.0/24No ROAIRR58
38.229.252.0/24No ROAIRR58
68.22.187.0/24No ROAIRR58
192.138.226.0/24No ROAIRR58
203.28.18.0/24No ROAIRR58
204.74.64.0/24No ROAIRR58
216.31.0.0/18No ROAIRR58
216.31.0.0/24No ROAIRR covering58
216.31.1.0/24No ROAIRR covering58
216.31.2.0/24No ROAIRR covering58
216.31.3.0/24No ROAIRR covering58
216.31.4.0/24No ROAIRR covering58
216.31.6.0/24No ROAIRR covering58
216.31.7.0/24No ROAIRR covering58
216.31.8.0/24No ROAIRR covering58
216.31.9.0/24No ROAIRR covering58
216.31.12.0/24No ROAIRR covering58
216.31.13.0/24No ROAIRR covering58
216.31.14.0/24No ROAIRR covering58
216.31.15.0/24No ROAIRR covering58
216.31.17.0/24No ROAIRR covering58
216.31.18.0/24No ROAIRR covering58
216.31.20.0/24No ROAIRR covering52
216.31.36.0/24No ROAIRR covering52
216.31.37.0/24No ROAIRR covering51
216.31.38.0/24No ROAIRR covering52
216.31.39.0/24No ROAIRR covering58
2604:8800::/32No ROAIRR33
2604:8800::/47No ROAIRR covering33
2604:8800:20::/48No ROAIRR covering30
2604:8800:50::/47No ROAIRR covering33
2604:8800:52::/48No ROAIRR covering33
2604:8800:53::/48No ROAIRR covering33
2604:8800:60::/48No ROAIRR covering33
2604:8800:64::/48No ROAIRR covering30
2604:8800:65::/48No ROAIRR covering29
2604:8800:66::/48No ROAIRR covering29
2604:8800:67::/48No ROAIRR covering33
2604:8800:68::/48No ROAIRR covering30
2604:8800:69::/48No ROAIRR covering29
2604:8800:70::/48No ROAIRR covering29
2604:8800:71::/48No ROAIRR covering34
2620:0:6b0::/48No ROAIRR33
216.31.19.0/24RPKI validIRR54

RPKI · ROAs

Route origin authorisations

5 ROAs

Signed statements by address holders that AS23028 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
216.31.10.0/24/24ARIN
216.31.19.0/24/24ARIN
216.31.33.0/24/24ARIN
216.31.34.0/23/23ARIN
2001:470:43f::/48/48ARIN

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

RPKI · ASPA

Declared transit providers

9 declared

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

ASNetworkASPARouting paths
AS174Cogent Communications, LLCDeclarednot observed
AS2914NTT America, Inc.DeclaredObserved
AS6461Zayo BandwidthDeclaredObserved
AS6939Hurricane Electric LLCDeclaredObserved
AS7018AT&T Enterprises, LLCDeclarednot observed
AS8220COLT Technology Services Group LimitedDeclarednot observed
AS14618Amazon.com, Inc.Declarednot observed
AS16509Amazon.com, Inc.DeclaredObserved
AS23352DEFT.COMDeclaredObserved
AS3257GTT Communications Inc.not declaredObserved

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

23 objects · 7 not announced

Route objects naming AS23028 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
216.31.10.0/24ARINTeam Cymru Inc.MNT-TEAMC-12026-10-06Not announced
216.31.10.0/24RADBAmazon EC2 PrefixMAINT-AS165092026-10-06Not announced
216.31.33.0/24ARINTeam Cymru Inc.MNT-TEAMC-12026-06-22Not announced
216.31.34.0/23ARINTeam Cymru Inc.MNT-TEAMC-12026-06-22Not announced
2001:470:2c1::/48ARINNET-2001-470-2c1---48-AS23028MNT-HURC2024-06-01Not announced
2001:470:43f::/48ARINHurricane Electric LLCMNT-HURC2025-04-11Not announced
2604:8800:9::/48RADBTeam CymruMAINT-AS230282023-11-13Not announced
38.229.33.0/24RADBTeam CymruMAINT-AS230282023-11-13Announced
38.229.252.0/24RADBTeam CymruMAINT-AS230282023-11-13Announced
68.22.187.0/24ALTDBLLNW custMAINT-LLNW2009-08-14Announced
68.22.187.0/24RADBTeam CymruMAINT-AS230282023-11-13Announced
192.138.226.0/24ALTDBLLNW custMAINT-LLNW2009-09-09Announced
192.138.226.0/24RADBTeam CymruMAINT-AS230282023-11-13Announced
203.28.18.0/24ALTDBLLNW custMAINT-LLNW2009-09-09Announced
203.28.18.0/24RADBThe University of Queensland (140915)MAINT-AS27642023-11-13Announced
204.74.64.0/24ALTDBLLNW custMAINT-LLNW2009-09-09Announced
204.74.64.0/24RADBTeam CymruMAINT-AS230282023-11-13Announced
216.31.0.0/18ARINTC Wide AllocationMNT-TEAMC-12026-08-27Announced
216.31.0.0/18RADBTeam CymruMAINT-AS230282023-11-13Announced
216.31.19.0/24ARINTeam Cymru Inc.MNT-TEAMC-12026-09-04Announced
216.31.19.0/24RADBAmazon EC2 PrefixMAINT-AS165092026-09-08Announced
2604:8800::/32RADBTeam CymruMAINT-AS230282023-11-13Announced
2620:0:6b0::/48RADBTeam CymruMAINT-AS230282023-11-13Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS23028 directly show who expects to carry it.

AS-setWhereRelationship
AS-GBLXRIPELists AS23028 as a direct member
AS-GTTCUSTRIPELists AS23028 as a direct member
AS-GTTCUST6RIPELists AS23028 as a direct member
AS-HURRICANERADBLists AS23028 as a direct member
AS-HURRICANEV6RADBLists AS23028 as a direct member
AS-LIMELIGHT-CUSTALTDBLists AS23028 as a direct member
AS-RCN-CE-PEERSRADBLists AS23028 as a direct member
AS-SUMMITHQ-CUSTOMERSARINLists AS23028 as a direct member
AS-SUMMITHQ-TESTINGARINLists AS23028 as a direct member
AS-TRANSROUTE-SPECRIPELists AS23028 as a direct member
AS-WEBWERKS-1RADBLists AS23028 as a direct member
AS12897:AS-AMSIX-RS-PEERSRIPELists AS23028 as a direct member
AS134783:AS-ALLAPNICLists AS23028 as a direct member
AS16509:AS-AMAZON-BYO-US-EAST-2ARINLists AS23028 as a direct member
AS23028:AS-CONERADBLists AS23028 as a direct member
AS2764:AS-CUSTOMERS:AS9822RADBLists AS23028 as a direct member
AS2764:AS-TRANSIT:AS9822RADBLists AS23028 as a direct member
AS3303:AS-SWCMPEERSRIPELists AS23028 as a direct member
AS33495:AS-MEMBERSALTDBLists AS23028 as a direct member
AS6777:AS-AMS-IX-RSRIPELists AS23028 as a direct member
AS6777:AS-AMS-IX-RS-V6RIPELists AS23028 as a direct member
AS680:AS-AMSIX-RS-PEERSRIPELists AS23028 as a direct member

RPKI from rpki-client, validated 2026-10-13 12:16 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-13. Cross-check on bgp.he.net.