asn.dev

Routing security

AS23486 NETSPAN

Residential ARIN Cable/DSL/ISP

RPKI valid 50% 3 of 6 announcements
RPKI invalid 0 none
No ROA 3 not covered by any ROA
IRR registered 100% 0 missing · 0 other origin
ROAs 5 authorising this AS

Announcements

What this network originates

6 observed

Every prefix observed with AS23486 as its origin, checked against RPKI and the IRR. Problems sort first.

PrefixRPKIIRRVantage points
38.103.228.0/22No ROAIRR50
194.164.102.0/23No ROAIRR50
204.29.205.0/24No ROAIRR50
74.122.64.0/21RPKI validIRR51
199.58.128.0/21RPKI validIRR51
199.192.244.0/22RPKI validIRR50

RPKI · ROAs

Route origin authorisations

5 ROAs

Signed statements by address holders that AS23486 may originate these prefixes, up to the maximum length shown.

PrefixMax lengthTrust anchor
74.122.64.0/21/21ARIN
170.76.243.0/24/24ARIN
199.58.128.0/21/21ARIN
199.192.244.0/22/22ARIN
204.141.240.0/22/22ARIN

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

24 objects · 15 not announced

Route objects naming AS23486 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
8.19.114.0/23NTTCOMForemost_Level3 Provided IPsMAINT-FOREMOST2013-06-27Not announced
170.76.243.0/24ARINBeaumont ISDMNT-BI-6252025-11-20Not announced
170.76.243.0/24NTTCOMBeaumontISDMAINT-FOREMOST2025-11-07Not announced
192.149.90.0/23NTTCOMCCISD - downstream cust. of Foremost TechnologiesMAINT-FOREMOST2020-02-27Not announced
192.149.90.0/23RADBProxy-registered route objectMAINT-AS34912025-03-28Not announced
198.22.170.0/24NTTCOMWeslaco ISDMAINT-FOREMOST2016-09-15Not announced
198.96.22.0/24NTTCOMMcAllen ISD - downstream cust. of Foremost TechnologiesMAINT-FOREMOST2022-06-20Not announced
198.96.22.0/24RADBProxy-registered route objectMAINT-AS34912025-03-28Not announced
198.232.222.0/23NTTCOMLISD blockMAINT-FOREMOST2014-08-04Not announced
204.13.159.0/24NTTCOMAddition of VView IPsMAINT-FOREMOST2018-02-22Not announced
204.13.159.0/24RADBProxy-registered route objectMAINT-AS34912025-03-28Not announced
204.141.240.0/22NTTCOMDirect Assignment from NTTMAINT-FOREMOST2017-02-01Not announced
208.65.16.0/22NTTCOMBISD IPsMAINT-FOREMOST2013-09-03Not announced
208.68.152.0/22NTTCOMESC Regin 2 - downstream cust. of Foremost TechnologiesMAINT-FOREMOST2020-03-04Not announced
208.68.152.0/22RADBProxy-registered route objectMAINT-AS34912025-03-28Not announced
38.103.228.0/22NTTCOMCogent Assigned RangeMAINT-FOREMOST2025-11-26Announced
74.122.64.0/21ARINP.O. Box 261160MNT-FTC-542025-11-18Announced
74.122.64.0/21NTTCOMForemost Tech Block1MAINT-FOREMOST2013-06-27Announced
194.164.102.0/23NTTCOMPSJA ISDMAINT-FOREMOST2025-02-15Announced
199.58.128.0/21ARINP.O. Box 261160MNT-FTC-542025-11-26Announced
199.58.128.0/21NTTCOMForemost Tech Block3MAINT-FOREMOST2013-06-27Announced
199.192.244.0/22ARINP.O. Box 261160MNT-FTC-542025-11-26Announced
199.192.244.0/22NTTCOMForemost Tech Block1MAINT-FOREMOST2013-06-27Announced
204.29.205.0/24NTTCOMForemost Tech Block1MAINT-FOREMOST2013-06-27Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS23486 directly show who expects to carry it.

AS-setWhereRelationship
AS-FOREMOSTNTTCOMLists AS23486 as a direct member
AS-FRMSTTE-PEERSARINLists AS23486 as a direct member
AS3491:AS-CUSTOMERS-NARADBLists AS23486 as a direct member

RPKI from rpki-client, validated 2026-10-11 12:23 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-11. Cross-check on bgp.he.net.