ASN AS23538 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS23538?

AS23538 is listed under Johnson County Iowa.

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?

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AS23538 Johnson County Iowa | IPGeolocation.io

ASN Lookup Tool

Johnson County Iowa johnsoncountyiowa.gov

US 1 Routes

AS Data

AS23538

AS23538 – Johnson County Iowa

AS Number	23538
AS Name	JOHNSON-COUNTY-ASN
Organization	Johnson County Iowa (jci)
Country	US
Website	johnsoncountyiowa.gov
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2017-11-10

ASN Intelligence API for production workflows

Use ASN data for AS23538 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.234.91.0/24	AS23538	Johnson County Iowa	Johnson County Iowa	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:       23538
ASName:         JOHNSON-COUNTY-ASN
ASHandle:       AS23538
RegDate:        2017-11-10
Updated:        2017-11-10
Ref:            https://rdap.arin.net/registry/autnum/23538


OrgName:        Johnson County Iowa
OrgId:          JCI
Address:        913 S. Dubuque Street
City:           Iowa City
StateProv:      IA
PostalCode:     52240
Country:        US
RegDate:        1992-10-13
Updated:        2021-08-17
Ref:            https://rdap.arin.net/registry/entity/JCI


OrgAbuseHandle: INFOR54-ARIN
OrgAbuseName:   Information Services
OrgAbusePhone:  +1-319-356-6080 
OrgAbuseEmail:  bhorning@johnsoncountyiowa.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/INFOR54-ARIN

OrgTechHandle: INFOR54-ARIN
OrgTechName:   Information Services
OrgTechPhone:  +1-319-356-6080 
OrgTechEmail:  bhorning@johnsoncountyiowa.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/INFOR54-ARIN

OrgNOCHandle: MELIC4-ARIN
OrgNOCName:   Melick, Clint 
OrgNOCPhone:  +1-319-356-6080 
OrgNOCEmail:  cmelick@johnsoncountyiowa.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/MELIC4-ARIN

OrgTechHandle: MELIC4-ARIN
OrgTechName:   Melick, Clint 
OrgTechPhone:  +1-319-356-6080 
OrgTechEmail:  cmelick@johnsoncountyiowa.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/MELIC4-ARIN

OrgAbuseHandle: MELIC4-ARIN
OrgAbuseName:   Melick, Clint 
OrgAbusePhone:  +1-319-356-6080 
OrgAbuseEmail:  cmelick@johnsoncountyiowa.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MELIC4-ARIN

OrgNOCHandle: INFOR54-ARIN
OrgNOCName:   Information Services
OrgNOCPhone:  +1-319-356-6080 
OrgNOCEmail:  bhorning@johnsoncountyiowa.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/INFOR54-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" : "23538",
    "as_handle" : "AS23538",
    "as_name" : "JOHNSON-COUNTY-ASN",
    "tech_contacts" : [ "INFOR54-ARIN", "MELIC4-ARIN" ],
    "abuse_contacts" : [ "INFOR54-ARIN", "MELIC4-ARIN" ],
    "date_created" : "2017-11-10",
    "date_updated" : "2017-11-10",
    "source" : "https://rdap.arin.net/registry/autnum/23538"
  } ],
  "organization" : {
    "handle" : "JCI",
    "name" : "Johnson County Iowa",
    "address" : [ "913 S. Dubuque Street", "Iowa City", "IA", "52240", "US" ],
    "street" : "S. Dubuque Street",
    "city" : "Iowa City",
    "state" : "IA",
    "zip_code" : "52240",
    "country" : [ "US" ],
    "date_created" : "1992-10-13",
    "date_updated" : "2021-08-17",
    "source" : "https://rdap.arin.net/registry/entity/JCI",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "INFOR54-ARIN",
    "name" : "Information Services",
    "email" : [ "bhorning@johnsoncountyiowa.gov" ],
    "phone" : [ "+1-319-356-6080" ],
    "source" : "https://rdap.arin.net/registry/entity/INFOR54-ARIN"
  }, {
    "handle" : "MELIC4-ARIN",
    "name" : "Melick, Clint",
    "email" : [ "cmelick@johnsoncountyiowa.gov" ],
    "phone" : [ "+1-319-356-6080" ],
    "source" : "https://rdap.arin.net/registry/entity/MELIC4-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "INFOR54-ARIN",
    "name" : "Information Services",
    "email" : [ "bhorning@johnsoncountyiowa.gov" ],
    "phone" : [ "+1-319-356-6080" ],
    "source" : "https://rdap.arin.net/registry/entity/INFOR54-ARIN"
  }, {
    "handle" : "MELIC4-ARIN",
    "name" : "Melick, Clint",
    "email" : [ "cmelick@johnsoncountyiowa.gov" ],
    "phone" : [ "+1-319-356-6080" ],
    "source" : "https://rdap.arin.net/registry/entity/MELIC4-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS5056	Aureon Network Services	US
AS393238	ImOn Communications, LLC	US

Upstreams

AS Number	Description	Country
AS5056	Aureon Network Services	US
AS393238	ImOn Communications, LLC	US