What is ASN AS398324?

ASN AS398324 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS398324?

AS398324 is listed under Censys, Inc..

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS398324 Censys, Inc. | IPGeolocation.io

ASN Lookup Tool

Censys, Inc. censys.com

US 15 Routes

AS Data

AS398324

AS398324 – Censys, Inc.

AS Number	398324
AS Name	CENSYS-ARIN-01
Organization	Censys, Inc. (censy)
Country	US
Website	censys.com
Number of IPv4 Routes	10
Number of IPv6 Routes	5
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2020-04-27

ASN Intelligence API for production workflows

Use ASN data for AS398324 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
66.132.195.0/24	AS398324	Censys, Inc.	Censys, Inc.	256
2602:80d:1008::/48	AS398324	Censys, Inc.	Censys, Inc.	~1×10²⁴
66.132.228.0/24	AS398324	Censys, Inc.	Censys, Inc.	256
2620:96:e000::/48	AS398324	Censys, Inc.	Censys, Inc.	~1×10²⁴
66.132.172.0/24	AS398324	Censys, Inc.	Censys, Inc.	256
206.168.35.0/24	AS398324	Censys, Inc.	Censys, Inc.	256
66.132.198.0/24	AS398324	Censys, Inc.	Censys, Inc.	256
66.132.153.0/24	AS398324	Censys, Inc.	Censys, Inc.	256
66.132.186.0/24	AS398324	Censys, Inc.	Censys, Inc.	256
66.132.148.0/24	AS398324	Censys, Inc.	Censys, Inc.	256

Raw Whois Response

#
# 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.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CAT20-ARIN

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

OrgNOCHandle: COT12-ARIN
OrgNOCName:   Censys Operations Team
OrgNOCPhone:  +1-248-629-0125 
OrgNOCEmail:  ops@censys.com
OrgNOCRef:    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.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "398324",
    "as_handle" : "AS398324",
    "as_name" : "CENSYS-ARIN-01",
    "tech_contacts" : [ "COT12-ARIN" ],
    "abuse_contacts" : [ "CAT20-ARIN" ],
    "date_created" : "2020-04-27",
    "date_updated" : "2020-04-27",
    "source" : "https://rdap.arin.net/registry/autnum/398324"
  } ],
  "organization" : {
    "handle" : "CENSY",
    "name" : "Censys, Inc.",
    "address" : [ "116 1/2 S Main Street", "Ann Arbor", "MI", "48104", "US" ],
    "street" : "S Main Street",
    "city" : "Ann Arbor",
    "state" : "MI",
    "zip_code" : "48104",
    "country" : [ "US" ],
    "date_created" : "2018-08-06",
    "date_updated" : "2019-08-03",
    "source" : "https://rdap.arin.net/registry/entity/CENSY",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "COT12-ARIN",
    "name" : "Censys Operations Team",
    "email" : [ "ops@censys.com" ],
    "phone" : [ "+1-248-629-0125" ],
    "source" : "https://rdap.arin.net/registry/entity/COT12-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "CAT20-ARIN",
    "name" : "Censys Abuse Team",
    "email" : [ "scan-abuse@censys.com" ],
    "phone" : [ "+1-248-629-0125" ],
    "source" : "https://rdap.arin.net/registry/entity/CAT20-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US
AS3356	Level 3 Parent, LLC	US

Contacts

Email Contacts

ops@censys.com

Abuse Contacts

scan-abuse@censys.com