asn.dev

Routing security

AS21554 CYBERLYNK

Hosting ARIN

RPKI valid 2% 1 of 65 announcements
RPKI invalid 0 none
No ROA 64 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 1 authorising this AS

Announcements

What this network originates

65 observed

Every prefix observed with AS21554 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
38.23.32.0/19No ROAIRR56
38.23.32.0/24No ROAIRR53
38.23.33.0/24No ROAIRR53
38.23.34.0/24No ROAIRR53
38.23.35.0/24No ROAIRR56
38.23.36.0/24No ROAIRR56
38.23.37.0/24No ROAIRR56
38.23.38.0/24No ROAIRR56
38.23.39.0/24No ROAIRR56
38.23.40.0/24No ROAIRR56
38.23.41.0/24No ROAIRR56
38.23.42.0/24No ROAIRR53
38.23.43.0/24No ROAIRR53
38.23.44.0/24No ROAIRR53
38.23.45.0/24No ROAIRR53
38.23.46.0/24No ROAIRR53
38.23.47.0/24No ROAIRR53
38.23.48.0/24No ROAIRR53
38.23.49.0/24No ROAIRR55
38.23.50.0/24No ROAIRR55
38.23.51.0/24No ROAIRR52
38.23.52.0/24No ROAIRR53
38.23.53.0/24No ROAIRR53
38.23.54.0/24No ROAIRR53
38.23.55.0/24No ROAIRR53
38.23.56.0/24No ROAIRR56
38.23.57.0/24No ROAIRR56
38.23.58.0/24No ROAIRR56
38.23.59.0/24No ROAIRR56
38.23.60.0/24No ROAIRR56
38.23.61.0/24No ROAIRR53
38.23.62.0/24No ROAIRR53
38.23.63.0/24No ROAIRR56
38.39.176.0/20No ROAIRR56
38.39.176.0/24No ROAIRR56
38.39.177.0/24No ROAIRR56
38.39.178.0/24No ROAIRR53
38.39.179.0/24No ROAIRR56
38.39.180.0/24No ROAIRR53
38.39.181.0/24No ROAIRR53
38.39.182.0/24No ROAIRR56
38.39.183.0/24No ROAIRR56
38.39.184.0/24No ROAIRR56
38.39.185.0/24No ROAIRR56
38.39.186.0/24No ROAIRR56
38.39.187.0/24No ROAIRR56
38.39.188.0/24No ROAIRR56
38.39.189.0/24No ROAIRR56
38.39.190.0/24No ROAIRR56
38.39.191.0/24No ROAIRR56
66.185.16.0/20No ROAIRR53
162.217.84.0/22No ROAIRR56
162.221.88.0/21No ROAIRR53
162.252.208.0/22No ROAIRR56
162.255.16.0/22No ROAIRR56
192.159.64.0/22No ROAIRR53
192.206.63.0/24No ROAIRR54
198.206.132.0/22No ROAIRR53
199.38.80.0/21No ROAIRR52
199.102.236.0/22No ROAIRR55
199.195.144.0/22No ROAIRR53
209.236.224.0/20No ROAIRR56
2604:cb80::/32No ROAIRR30
2605:3800::/32No ROAIRR30
199.248.63.0/24RPKI validIRR56

RPKI · ROAs

Route origin authorisations

1 ROAs

Signed statements by address holders that AS21554 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
199.248.63.0/24/24ARIN

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

RPKI · ASPA

Declared transit providers

No ASPA record This network has not published an ASPA object. ASPA lets a network sign the list of its transit providers, so routers can reject paths that route through anyone else (route leaks). Only a few thousand networks publish one so far, so its absence is normal.

IRR

Registered route objects

80 objects · 7 not announced

Route objects naming AS21554 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
38.23.32.0/20RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Not announced
67.222.64.0/20ALTDBProxy registration to prevent harm from ARIN-NONAUTH shutdownMAINT-AS70342022-04-04Not announced
142.54.203.0/24ALTDBProxy registration to prevent harm from ARIN-NONAUTH shutdownMAINT-AS70342022-04-04Not announced
199.21.208.0/21ARINCL AS21554 Originate /21 Supernet 1MNT-PC-21712025-08-26Not announced
207.250.110.0/23ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Not announced
207.250.110.0/23RADBRR-RC-Wisconsin CyberLynk Network, Inc.-MilwaukeeMAINT-RR2023-11-13Not announced
208.90.24.0/21ARINCL AS21554 Originate /21 Supernet 2MNT-PC-21712025-08-26Not announced
38.23.32.0/19RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.32.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.33.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.34.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.35.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.36.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.37.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.38.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.39.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.40.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.41.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.42.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.43.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.44.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.45.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.46.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.47.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.48.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.49.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.50.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.51.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.52.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.53.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.54.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.55.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.56.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.57.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.58.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.59.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.60.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.61.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.62.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.23.63.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.176.0/20ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2026-06-02Announced
38.39.176.0/20RADBRR-RC-Cyberlynk-MidwestMAINT-RR2023-11-13Announced
38.39.176.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.177.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.178.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.179.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.180.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.181.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.182.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.183.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.184.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.185.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.186.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.187.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.188.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.189.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.190.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
38.39.191.0/24RADBRoute Registered for Cogent Communications Customer - CyberLynk Network, IncMAINT-AS1742023-11-13Announced
66.185.16.0/20ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Announced
66.185.16.0/20RADBRR-RC-Wisconsin CyberLynk Network, Inc.-MilwaukeeMAINT-RR2023-11-13Announced
162.217.84.0/22ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Announced
162.221.88.0/21ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Announced
162.252.208.0/22ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-08-16Announced
162.255.16.0/22ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Announced
192.159.64.0/22ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Announced
192.206.63.0/24ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2018-07-06Announced
192.206.63.0/24RADBRR-RC-Wisconsin CyberLynk Network, Inc.-MilwaukeeMAINT-RR2023-11-13Announced
198.206.132.0/22ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Announced
199.38.80.0/21ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Announced
199.102.236.0/22ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Announced
199.102.236.0/22RADBRR-RC-Wisconsin CyberLynk Network, Inc.-MilwaukeeMAINT-RR2023-11-13Announced
199.195.144.0/22ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Announced
199.248.63.0/24ARIN301 N. Cattlemen Road, Suite 300MNT-SU-6462025-04-25Announced
199.248.63.0/24RADBRR-RC-Cyberlynk-MidwestMAINT-RR2023-11-13Announced
209.236.224.0/20ALTDBProxy registration to prevent harm from ARIN-NONAUTH shutdownMAINT-AS70342022-04-04Announced
209.236.224.0/20RADBProxy Registered on Behalf of AS21554MAINT-AS305172026-07-24Announced
2604:cb80::/32ALTDBProxy registration to prevent harm from ARIN-NONAUTH shutdownMAINT-AS70342022-04-04Announced
2604:cb80::/32RADBProxy registered on behalf of AS21554MAINT-AS305172026-07-24Announced
2605:3800::/32ARINWisconsin CyberLynk Network, Inc.MNT-WCNI2017-04-05Announced
2605:3800::/32RADBRR-RC-Wisconsin CyberLynk Network, Inc.-MilwaukeeMAINT-RR2023-11-13Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS21554 directly show who expects to carry it.

AS-setWhereRelationship
AS-30517-ASSOCIATEDRADBLists AS21554 as a direct member
AS-CHTR-SYNCRADBLists AS21554 as a direct member
AS-CYBERLYNKARINLists AS21554 as a direct member
AS-HURRICANERADBLists AS21554 as a direct member
AS-MKE1-CYBERLYNKARINLists AS21554 as a direct member
AS-PNAPCHIRADBLists AS21554 as a direct member
AS-RR-BIZRADBLists AS21554 as a direct member
AS-XO-BARINLists AS21554 as a direct member
AS13335:AS-CUSTOMERSARINLists AS21554 as a direct member
AS54110:AS-PEERSRADBLists AS21554 as a direct member

RPKI from rpki-client, validated 2026-10-31 12:02 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-31. Cross-check on bgp.he.net.