ASN AS10423 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS10423?

AS10423 is listed under STELLAR Broadband.

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.

AS10423 STELLAR Broadband | IPGeolocation.io

ASN Lookup Tool

STELLAR Broadband stellarbb.com

US 3 Routes

AS Data

AS10423

AS10423 – STELLAR Broadband

AS Number	10423
AS Name	SPARTAN-NET
Organization	STELLAR Broadband (spart-1)
Country	US
Website	stellarbb.com
Number of IPv4 Routes	2
Number of IPv6 Routes	1
ASN type	ISP
Registry	ARIN
Date Allocated	2005-05-04

ASN Intelligence API for production workflows

Use ASN data for AS10423 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
69.176.128.0/19	AS10423	STELLAR Broadband	STELLAR Broadband	8192
2604:71c0::/32	AS10423	STELLAR Broadband	STELLAR Broadband	~79×10²⁷
72.44.96.0/19	AS10423	STELLAR Broadband	STELLAR Broadband	8192

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:       10423
ASName:         SPARTAN-NET
ASHandle:       AS10423
RegDate:        2005-05-04
Updated:        2012-03-02
Ref:            https://rdap.arin.net/registry/autnum/10423


OrgName:        STELLAR Broadband
OrgId:          SPART-1
Address:        3032 E. Lake Lansing Rd
City:           East Lansing
StateProv:      MI
PostalCode:     48823
Country:        US
RegDate:        2003-10-17
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/SPART-1


OrgTechHandle: NETWO8321-ARIN
OrgTechName:   Network Engineering
OrgTechPhone:  +1-517-679-6320 
OrgTechEmail:  neteng@stellarbb.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO8321-ARIN

OrgAbuseHandle: ABUSE6470-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-517-679-6320 
OrgAbuseEmail:  abuse@stellarbb.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE6470-ARIN

OrgNOCHandle: NETWO8321-ARIN
OrgNOCName:   Network Engineering
OrgNOCPhone:  +1-517-679-6320 
OrgNOCEmail:  neteng@stellarbb.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO8321-ARIN

RNOCHandle: RL967-ARIN
RNOCName:   Laing, Richard 
RNOCPhone:  +1-517-203-3096 
RNOCEmail:  rlaing@dtnmgt.com
RNOCRef:    https://rdap.arin.net/registry/entity/RL967-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" : "10423",
    "as_handle" : "AS10423",
    "as_name" : "SPARTAN-NET",
    "tech_contacts" : [ "NETWO8321-ARIN" ],
    "abuse_contacts" : [ "ABUSE6470-ARIN" ],
    "date_created" : "2005-05-04",
    "date_updated" : "2012-03-02",
    "source" : "https://rdap.arin.net/registry/autnum/10423"
  } ],
  "organization" : {
    "handle" : "SPART-1",
    "name" : "STELLAR Broadband",
    "address" : [ "3032 E. Lake Lansing Rd", "East Lansing", "MI", "48823", "US" ],
    "street" : "E. Lake Lansing Rd",
    "city" : "East Lansing",
    "state" : "MI",
    "zip_code" : "48823",
    "country" : [ "US" ],
    "date_created" : "2003-10-17",
    "date_updated" : "2024-11-25",
    "source" : "https://rdap.arin.net/registry/entity/SPART-1",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "NETWO8321-ARIN",
    "name" : "Network Engineering",
    "email" : [ "neteng@stellarbb.com" ],
    "phone" : [ "+1-517-679-6320" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO8321-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ABUSE6470-ARIN",
    "name" : "Abuse",
    "email" : [ "abuse@stellarbb.com" ],
    "phone" : [ "+1-517-679-6320" ],
    "source" : "https://rdap.arin.net/registry/entity/ABUSE6470-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS7195	EDGEUNO S.A.S	CO
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS3737	PenTeleData Inc.	US
AS6939	Hurricane Electric LLC	US
AS10242	US Internet Corp	US
AS37468	Angola Cables	AO
AS33414	Kent County Information Systems	US
AS199524	G-Core Labs S.A.	LU
AS401731	The University of Alabama Athletics	US
AS14907	Wikimedia Foundation Inc.	US
AS12129	123.Net, Inc.	US
AS53597	Hoyos Consulting LLC	US
AS11039	The George Washington University	US
AS23367	Adaptive Data Networks, LLC	US
AS16552	Tiggee LLC	US
AS8220	COLT Technology Services Group Limited	GB
AS37721	Virtual Technologies & Solutions	BF
AS18678	INTERNEXA S.A. E.S.P	CO
AS32709	Joink, LLC	US
AS32590	Valve Corporation	US
AS399337	Netcrawler Inc	CA
AS6204	INTERKVM HOST SRL	RO
AS1828	Unitas Global	US
AS1299	Arelion Sweden AB	SE
AS13737	Interconnecx, LLC	US
AS24482	SG.GS	SG
AS57695	Misaka Network, Inc.	US
AS45701	PT. Internet Madju Abad Milenindo	ID
AS52320	GlobeNet Cabos Submarinos Colombia, S.A.S.	CO
AS20473	The Constant Company, LLC	US
AS4826	Vocus Connect International Backbone	AU
AS60171	AFR-IX TELECOM S.A.	ES
AS60171	AFR IX TELECOM S.A.	ES
AS20205	Amplex Electric, Inc.	US
AS36236	NetActuate, Inc	US
AS4455	IX Reach Ltd	GB
AS16276	OVH SAS	FR
AS19754	The Fusion Network, LLC	US
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	NL
AS19653	CTS Communications Corp	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS396238	FairlawnGig.net	US
AS174	Cogent Communications, LLC	US
AS2381	WiscNet	US
AS13786	Seabras 1 USA, LLC	US
AS35280	F5 Networks SARL	FR
AS21559	OSNET	PR
AS32002	RackGenius	US
AS4181	TDS TELECOM	US
AS137409	GSL Networks Pty LTD	AU
AS49544	i3D.net B.V	NL

Upstreams

AS Number	Description	Country
AS37468	Angola Cables	AO
AS13786	Seabras 1 USA, LLC	US
AS12129	123.Net, Inc.	US
AS7195	EDGEUNO S.A.S	CO
AS60171	AFR IX TELECOM S.A.	ES
AS1299	Arelion Sweden AB	SE
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS174	Cogent Communications, LLC	US
AS137409	GSL Networks Pty LTD	AU

Downstreams

AS Number	Description	Country
AS33414	Kent County Information Systems	US

Contacts

Email Contacts

neteng@stellarbb.com

Abuse Contacts

abuse@stellarbb.com