ResearchRouting table, RPKI, IRR & looking glass

AS398324 Censys, Inc.

AS398324 (CENSYS-ARIN-01) is registered to Censys, Inc. in US, through ARIN. It originates 24 prefixes in the global routing table.

17
IPv4 prefixes
7
IPv6 prefixes
4,352
IPv4 addresses
100%
RPKI valid

Who holds AS398324

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS398324
Handle
CENSYS-ARIN-01
Organization
Censys, Inc.
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       398324
ASName:         CENSYS-ARIN-01
ASHandle:       AS398324
RegDate:        2020-04-27
Updated:        2020-04-27
Ref:            https://rdap.arin.net/registry/autnum/398324



OrgName:        Censys, Inc.
OrgId:          CENSY
Address:        116 1/2 S Main Street
City:           Ann Arbor
StateProv:      MI
PostalCode:     48104
Country:        US
RegDate:        2018-08-06
Updated:        2019-08-03
Comment:        https://censys.io
Ref:            https://rdap.arin.net/registry/entity/CENSY


OrgAbuseHandle: CAT20-ARIN
OrgAbuseName:   Censys Abuse Team
OrgAbusePhone:  +1-248-629-0125 
OrgAbuseEmail:  scan-abuse@censys.io
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CAT20-ARIN

OrgNOCHandle: COT12-ARIN
OrgNOCName:   Censys Operations Team
OrgNOCPhone:  +1-248-629-0125 
OrgNOCEmail:  ops@censys.io
OrgNOCRef:    https://rdap.arin.net/registry/entity/COT12-ARIN

OrgTechHandle: COT12-ARIN
OrgTechName:   Censys Operations Team
OrgTechPhone:  +1-248-629-0125 
OrgTechEmail:  ops@censys.io
OrgTechRef:    https://rdap.arin.net/registry/entity/COT12-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

What AS398324 announces

Prefixes originated by AS398324 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
17
IPv6 prefixes
7
IPv4 addresses
4,352 (17 /24s)
RPKI valid
24 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS398324
34
With an IRR route object
20 83%

Who AS398324 is reached through

The AS just before AS398324 in the paths our looking glass collectors hold, for 24 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.