What is ASN AS399850?

ASN AS399850 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS399850?

AS399850 is listed under Hamilton County.

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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AS399850 Hamilton County | IPGeolocation.io

ASN Lookup Tool

Hamilton County hamiltoncounty.in.gov

US 2 Routes

AS Data

AS399850

AS399850 – Hamilton County

AS Number	399850
AS Name	HCINDIANA
Organization	Hamilton County (hc-1930)
Country	US
Website	hamiltoncounty.in.gov
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2024-08-29

ASN Intelligence API for production workflows

Use ASN data for AS399850 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
209.135.191.0/24	AS399850	Hamilton County	Hamilton County	256
209.135.190.0/24	AS399850	Hamilton County	Hamilton County	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:       399850
ASName:         HCINDIANA
ASHandle:       AS399850
RegDate:        2024-08-29
Updated:        2024-08-29
Ref:            https://rdap.arin.net/registry/autnum/399850


OrgName:        Hamilton County
OrgId:          HC-1930
Address:        1 Hamilton County Square
City:           Noblesville
StateProv:      IN
PostalCode:     46060
Country:        US
RegDate:        2022-08-22
Updated:        2026-06-11
Ref:            https://rdap.arin.net/registry/entity/HC-1930


OrgAbuseHandle: ZLS1-ARIN
OrgAbuseName:   SeRine, Zachary L
OrgAbusePhone:  +1-317-776-8250 
OrgAbuseEmail:  zach.serine@hamiltoncounty.in.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ZLS1-ARIN

OrgDNSHandle: ZLS1-ARIN
OrgDNSName:   SeRine, Zachary L
OrgDNSPhone:  +1-317-776-8250 
OrgDNSEmail:  zach.serine@hamiltoncounty.in.gov
OrgDNSRef:    https://rdap.arin.net/registry/entity/ZLS1-ARIN

OrgNOCHandle: ZLS1-ARIN
OrgNOCName:   SeRine, Zachary L
OrgNOCPhone:  +1-317-776-8250 
OrgNOCEmail:  zach.serine@hamiltoncounty.in.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/ZLS1-ARIN

OrgTechHandle: ZLS1-ARIN
OrgTechName:   SeRine, Zachary L
OrgTechPhone:  +1-317-776-8250 
OrgTechEmail:  zach.serine@hamiltoncounty.in.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/ZLS1-ARIN

OrgRoutingHandle: ZLS1-ARIN
OrgRoutingName:   SeRine, Zachary L
OrgRoutingPhone:  +1-317-776-8250 
OrgRoutingEmail:  zach.serine@hamiltoncounty.in.gov
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ZLS1-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" : "399850",
    "as_handle" : "AS399850",
    "as_name" : "HCINDIANA",
    "admin_contacts" : [ "ZLS1-ARIN" ],
    "tech_contacts" : [ "ZLS1-ARIN", "ZLS1-ARIN" ],
    "abuse_contacts" : [ "ZLS1-ARIN" ],
    "date_created" : "2024-08-29",
    "date_updated" : "2024-08-29",
    "source" : "https://rdap.arin.net/registry/autnum/399850"
  } ],
  "organization" : {
    "handle" : "HC-1930",
    "name" : "Hamilton County",
    "address" : [ "1 Hamilton County Square", "Noblesville", "IN", "46060", "US" ],
    "street" : "Hamilton County Square",
    "city" : "Noblesville",
    "state" : "IN",
    "zip_code" : "46060",
    "country" : [ "US" ],
    "date_created" : "2022-08-22",
    "date_updated" : "2026-06-11",
    "source" : "https://rdap.arin.net/registry/entity/HC-1930",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "ZLS1-ARIN",
    "name" : "SeRine, Zachary L",
    "email" : [ "zach.serine@hamiltoncounty.in.gov" ],
    "phone" : [ "+1-317-776-8250" ],
    "source" : "https://rdap.arin.net/registry/entity/ZLS1-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "ZLS1-ARIN",
    "name" : "SeRine, Zachary L",
    "email" : [ "zach.serine@hamiltoncounty.in.gov" ],
    "phone" : [ "+1-317-776-8250" ],
    "source" : "https://rdap.arin.net/registry/entity/ZLS1-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ZLS1-ARIN",
    "name" : "SeRine, Zachary L",
    "email" : [ "zach.serine@hamiltoncounty.in.gov" ],
    "phone" : [ "+1-317-776-8250" ],
    "source" : "https://rdap.arin.net/registry/entity/ZLS1-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS14333	On-Ramp Indiana, Inc. (ORI.NET)	US
AS14333	On Ramp Indiana, Inc. ORI.NET	US
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS14333	On Ramp Indiana, Inc. ORI.NET	US
AS6461	Zayo Bandwidth	US