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AS4

45 IPv4 prefixes 8 IPv6 prefixes
IPv4 addresses
66,816
IPv6 /48 networks
131,077
RPKI
1 valid1 invalid51 no ROA
Peers and downstreams
5

Holder

AS name
Organisation
Not published
Abuse contact
Not published
Registered
1984-02-22
Record last changed
2023-09-29 08:49 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths
AS6057 Administracion Nacional de Telecomunicaciones AS6057 · UY Administracion Nacion… AS3356 Level 3 Parent, LLC AS3356 · US Level 3 Parent, LLC AS39351 31173 Services AB AS39351 · SE 31173 Services AB AS1299 Arelion Sweden AB AS1299 · SE Arelion Sweden AB AS37468 Angola Cables AS37468 · AO Angola Cables AS37100 SEACOM Limited AS37100 · MU SEACOM Limited AS37662 West Indian Ocean Cable Company AS37662 · MU West Indian Ocean Cab… AS5713 Telkom SA Ltd. AS5713 · ZA Telkom SA Ltd. AS2914 NTT America, Inc. AS2914 · US NTT America, Inc. AS174 AS174 AS174 AS174 AS37358 BitCo AS37358 · ZA BitCo AS226 AS226 AS226 AS226 AS266306 CENTRALNETT SERVICOS LTDA AS266306 · BR CENTRALNETT SERVICOS … AS567 N-Lnet AS567 · US N-Lnet AS10886 University of Maryland AS10886 · US University of Maryland AS266625 WCA TELECOM AS266625 · BR WCA TELECOM AS400215 Sambanova Systems, Inc. AS400215 · US Sambanova Systems, In… AS4 AS4 AS4 AS4

Network health

Grade E · 35/100
fail Prefixes covered by valid ROAs
1 of 53 announced prefixes are RPKI valid, 51 have no ROA.		 0/25
fail No RPKI invalid announcements
1 announced prefix is RPKI invalid and dropped by networks that validate.		 0/10
pass Announces IPv6
8 IPv6 prefixes.		 15/15
pass More than one upstream
8 upstreams seen in BGP.		 10/10
fail Working abuse contact
No abuse contact is published in the registry.		 0/15
fail Publishes a geofeed
No geofeed found. Without one, location databases have to guess.		 0/10
pass No prefixes smaller than /24 or /48
All prefixes are /24 (IPv4) or /48 (IPv6) or larger.		 10/10
fail Registry record maintained
Last changed 2023-09-29.		 0/5
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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Routing changes

Last 30 days
No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS4
as-name:        ISI-AS
handle:         AS4
registrant:     USC-32-Z (University of Southern California)
technical,abuse,administrative:ACT-ORG-ARIN (IPC Computing Services) <action@isi.edu>
last changed:   2023-09-29T04:49:38-04:00
registration:   1984-02-22T00:00:00-05:00
source:         ARIN (RDAP)