asn.dev

Routing security

AS21858 ASCENT-DATA-LLC

Unclassified ARIN

RPKI valid 100% 7 of 7 announcements
RPKI invalid 0 none
No ROA 0 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 2 authorising this AS

Announcements

What this network originates

7 observed

Every prefix observed with AS21858 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
208.70.64.0/21RPKI validIRR52
208.70.64.0/23RPKI validIRR52
208.70.64.0/24RPKI validIRR covering52
208.70.66.0/24RPKI validIRR52
208.70.68.0/24RPKI validIRR52
208.70.71.0/24RPKI validIRR52
2607:ffa8::/32RPKI validIRR30

RPKI · ROAs

Route origin authorisations

2 ROAs

Signed statements by address holders that AS21858 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
208.70.64.0/21/24ARIN
2607:ffa8::/32/48ARIN

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

20 objects · 14 not announced

Route objects naming AS21858 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
63.166.28.0/22RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
199.2.135.0/24RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
204.250.80.0/21RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
205.149.8.0/21RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
205.243.72.0/23RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
206.228.139.0/24RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
206.228.140.0/22RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
207.14.160.0/23RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
208.14.180.0/24RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
208.70.67.0/24ARIN208.70.67.0/24MNT-ASCEN-372023-05-16Not announced
208.70.69.0/24ARIN208.70.69.0/24MNT-ASCEN-372023-05-16Not announced
208.70.70.0/24ARIN208.70.70.0/24MNT-ASCEN-372023-05-16Not announced
2606:1180::/32RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
2620:15:e000::/48RADBMontana Opticom, LLCMAINT-AS275062023-11-13Not announced
208.70.64.0/21ARINAssignedMNT-ASCEN-372023-05-12Announced
208.70.64.0/23ARIN208.70.64.0/23MNT-ASCEN-372023-05-16Announced
208.70.66.0/24ARIN208.70.66.0/24MNT-ASCEN-372023-05-16Announced
208.70.68.0/24ARIN208.70.68.0/24MNT-ASCEN-372023-05-16Announced
208.70.71.0/24ARIN208.70.71.0/24MNT-ASCEN-372023-05-16Announced
2607:ffa8::/32RADBMontana Opticom, LLCMAINT-AS275062023-11-13Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS21858 directly show who expects to carry it.

AS-setWhereRelationship
AS-11924-PEERINGRIPELists AS21858 as a direct member
AS-21858-PEERINGARINLists AS21858 as a direct member
AS-CCFRADBLists AS21858 as a direct member
AS-CCF-TESTRADBLists AS21858 as a direct member
AS-CLIENTARINLists AS21858 as a direct member
AS-COMCAST-EDIARADBLists AS21858 as a direct member
AS16657:AS-CUSTRADBLists AS21858 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.