Routing security

AS4 ISI-AS

Unclassified ARIN

RPKI valid 2% 1 of 52 announcements

RPKI invalid 0 none

No ROA 51 not covered by any ROA

IRR registered 71% 10 missing · 5 other origin

ROAs 4 authorising this AS

Announcements

What this network originates

52 observed

Every prefix observed with AS4 as its origin, checked against RPKI and the IRR. Problems sort first.

Prefix	RPKI	IRR	Vantage points
165.140.12.0/24	No ROA	IRR other origin	5
165.140.13.0/24	No ROA	IRR other origin	2
165.140.14.0/24	No ROA	IRR other origin	5
170.79.218.0/23	No ROA	IRR other origin	12
206.117.6.0/24	No ROA	No IRR	55
206.117.27.0/24	No ROA	No IRR	55
206.117.31.0/24	No ROA	No IRR	55
206.117.37.0/24	No ROA	No IRR	55
2001:1878:401::/48	No ROA	No IRR	10
2001:1878:402::/48	No ROA	No IRR	10
2001:1878:403::/48	No ROA	No IRR	10
2001:1878:404::/48	No ROA	No IRR	10
2606:d5c0::/32	No ROA	IRR other origin	31
2606:d5c0::/48	No ROA	No IRR	6
2804:3edc::/32	No ROA	No IRR	19
128.9.0.0/20	No ROA	IRR	55
128.9.16.0/24	No ROA	IRR	55
128.9.17.0/24	No ROA	IRR	55
128.9.18.0/24	No ROA	IRR	55
128.9.19.0/24	No ROA	IRR covering	55
128.9.26.0/24	No ROA	IRR covering	55
128.9.28.0/23	No ROA	IRR	55
128.9.30.0/24	No ROA	IRR	55
128.9.31.0/24	No ROA	IRR covering	51
128.9.32.0/20	No ROA	IRR	55
128.9.34.0/24	No ROA	IRR covering	55
128.9.35.0/24	No ROA	IRR covering	55
128.9.36.0/24	No ROA	IRR covering	55
128.9.37.0/24	No ROA	IRR covering	55
128.9.38.0/24	No ROA	IRR covering	55
128.9.40.0/24	No ROA	IRR covering	55
128.9.43.0/24	No ROA	IRR covering	55
128.9.44.0/24	No ROA	IRR covering	55
128.9.46.0/24	No ROA	IRR covering	55
128.9.47.0/24	No ROA	IRR covering	55
128.9.48.0/20	No ROA	IRR	54
128.9.64.0/20	No ROA	IRR	55
128.9.80.0/20	No ROA	IRR	55
128.9.96.0/20	No ROA	IRR	55
128.9.112.0/20	No ROA	IRR	55
128.9.113.0/24	No ROA	IRR covering	55
128.9.117.0/24	No ROA	IRR covering	55
128.9.122.0/24	No ROA	IRR covering	55
128.9.123.0/24	No ROA	IRR covering	55
128.9.127.0/24	No ROA	IRR covering	55
128.9.128.0/20	No ROA	IRR	55
128.9.144.0/20	No ROA	IRR	55
128.9.160.0/20	No ROA	IRR	55
128.9.176.0/20	No ROA	IRR	55
128.9.192.0/18	No ROA	IRR covering	55
198.32.16.0/24	No ROA	IRR	55
2001:500:202::/48	RPKI valid	IRR	31

RPKI · ROAs

Route origin authorisations

4 ROAs

Signed statements by address holders that AS4 may originate these prefixes, up to the maximum length shown.

Prefix	Max length	Trust anchor
103.140.158.0/24	/24	APNIC
103.140.159.0/24	/24	APNIC
2001:500:84::/48	/56	ARIN
2001:500:200::/44	/48	ARIN

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

28 objects · 10 not announced

Route objects naming AS4 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.

Prefix	Source	Description	Maintainer	Changed	Routing
103.140.158.0/24	APNIC	Mohammed Rabin Reza	`MAINT-AFLAH-BD`	2019-12-04	Not announced
103.140.159.0/24	APNIC	Mohammed Rabin Reza	`MAINT-AFLAH-BD`	2019-12-04	Not announced
128.9.0.0/16	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Not announced
128.9.192.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Not announced
128.9.208.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Not announced
128.9.224.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Not announced
128.9.240.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Not announced
198.32.18.0/24	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Not announced
206.117.9.0/24	NTTCOM	ISI Test 1	`MAINT-AS226`	2004-05-10	Not announced
206.117.10.0/24	NTTCOM	ISI Test 2	`MAINT-AS226`	2004-05-10	Not announced
128.9.0.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.16.0/24	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.17.0/24	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.18.0/24	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.28.0/23	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.30.0/24	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.32.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.48.0/20	RADB	Proxy-registered route object for ISI	`MAINT-AS10886`	2023-11-13	Announced
128.9.64.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.80.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.96.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.112.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.128.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.144.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.160.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
128.9.176.0/20	NTTCOM	ISI	`MAINT-AS226`	2020-06-15	Announced
198.32.16.0/24	NTTCOM	ISI	`MAINT-AS226`	2003-11-03	Announced
2001:500:202::/48	ARIN	4676 Admiralty Way	`MNT-BROOT`	2022-08-26	Announced

IRR

AS-sets

The as-set is what upstreams expand to build this network's customer filter. Sets that list AS4 directly show who expects to carry it.

AS-set	Where	Relationship
`AS-13097`	RIPE	Lists AS4 as a direct member
`AS-CALREN2`	RADB	Lists AS4 as a direct member
`AS-CTBC-CUSTOMERS181`	RADB	Lists AS4 as a direct member
`AS-CTBC-CUSTOMERS66`	RADB	Lists AS4 as a direct member
`AS-EUNIC-IX`	RIPE	Lists AS4 as a direct member
`AS-HURRICANEV6`	RADB	Lists AS4 as a direct member
`AS-LOSNETTOS`	NTTCOM	Lists AS4 as a direct member
`AS-LOSNETTOS-IPV6`	NTTCOM	Lists AS4 as a direct member
`AS-PNAPACS`	RADB	Lists AS4 as a direct member
`AS-XO-B`	ARIN	Lists AS4 as a direct member
`AS10886:AS-4-ALL`	RADB	Lists AS4 as a direct member
`AS10886:AS-ALL`	RADB	Lists AS4 as a direct member
`AS174:AS-COGC-030`	RADB	Lists AS4 as a direct member
`AS293:AS-FROM-SINGAREN-TO-ESNET`	ARIN	Lists AS4 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.