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.

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

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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


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

OrgTechHandle: NETWO8321-ARIN
OrgTechName:   Network Engineering
OrgTechPhone:  +1-517-679-6320 
OrgTechEmail:  neteng@stellarbb.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO8321-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:  +1-517-719-8470 
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

Peers

AS Number	Description	Country
AS1239	Cogent Communications, LLC	US
AS6939	Hurricane Electric LLC	US
AS19653	CTS Communications Corp	US
AS174	Cogent Communications, LLC	US
AS2381	WiscNet	US
AS33414	Kent County Information Systems	US
AS199524	G-Core Labs S.A.	LU
AS12129	123.Net, Inc.	US
AS20205	Amplex Electric, Inc.	US
AS1299	Arelion Sweden AB	SE

Upstreams

AS Number	Description	Country
AS12129	123.Net, Inc.	US
AS1299	Arelion Sweden AB	SE
AS6939	Hurricane Electric LLC	US
AS174	Cogent Communications, LLC	US

Downstreams

AS Number	Description	Country
AS33414	Kent County Information Systems	US

Contacts

Email Contacts

neteng@stellarbb.com

Abuse Contacts

abuse@stellarbb.com