ASN AS54638 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS54638?

AS54638 is listed under NETSOURCE ONE, 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.

AS54638 NETSOURCE ONE, INC | IPGeolocation.io

ASN Lookup Tool

NETSOURCE ONE, INC nsoit.com

US 10 Routes

AS Data

AS54638

AS54638 – NETSOURCE ONE, INC

AS Number	54638
AS Name	NSO
Organization	NETSOURCE ONE, INC(netso-5)
Country	US
Website	nsoit.com
Number of IPv4 Routes	9
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2012-04-16

ASN Intelligence API for production workflows

Use ASN data for AS54638 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
12.221.137.0/24	AS54638	NETSOURCE ONE, INC	DO NOT TOUCH PORTS	256
12.221.136.0/24	AS54638	NETSOURCE ONE, INC	DO NOT TOUCH PORTS	256
12.231.166.0/23	AS54638	NETSOURCE ONE, INC	DO NOT TOUCH PORTS	512
2602:fdb1::/36	AS54638	NETSOURCE ONE, INC	NETSOURCE ONE, INC	~5×10²⁷
12.221.136.0/22	AS54638	NETSOURCE ONE, INC	DO NOT TOUCH PORTS	1024
12.231.166.0/24	AS54638	NETSOURCE ONE, INC	DO NOT TOUCH PORTS	256
12.221.138.0/24	AS54638	NETSOURCE ONE, INC	DO NOT TOUCH PORTS	256
12.231.167.0/24	AS54638	NETSOURCE ONE, INC	DO NOT TOUCH PORTS	256
23.136.88.0/24	AS54638	NETSOURCE ONE, INC	NETSOURCE ONE, INC	256
12.221.139.0/24	AS54638	NETSOURCE ONE, INC	DO NOT TOUCH PORTS	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:       54638
ASName:         NSO
ASHandle:       AS54638
RegDate:        2012-04-16
Updated:        2012-04-16
Comment:        http://www.nsoit.com    
Ref:            https://rdap.arin.net/registry/autnum/54638


OrgName:        NETSOURCE ONE, INC
OrgId:          NETSO-5
Address:        5454 HAMPTON PL
City:           SAGINAW
StateProv:      MI
PostalCode:     48604
Country:        US
RegDate:        2009-04-30
Updated:        2025-04-05
Ref:            https://rdap.arin.net/registry/entity/NETSO-5


OrgRoutingHandle: ECF-ARIN
OrgRoutingName:   French, Edward C
OrgRoutingPhone:  +1-989-498-4554 
OrgRoutingEmail:  ed.french@nsoit.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ECF-ARIN

OrgTechHandle: TLG8-ARIN
OrgTechName:   Terry L Girard
OrgTechPhone:  +1-989-498-4534 
OrgTechEmail:  terry.girard@nsoit.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TLG8-ARIN

OrgTechHandle: SKRZY1-ARIN
OrgTechName:   Skrzypczak, Andy 
OrgTechPhone:  +1-989-797-1085 
OrgTechEmail:  andy.skrzypczak@nsoit.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SKRZY1-ARIN

OrgNOCHandle: ECF-ARIN
OrgNOCName:   French, Edward C
OrgNOCPhone:  +1-989-498-4554 
OrgNOCEmail:  ed.french@nsoit.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ECF-ARIN

OrgAbuseHandle: ECF-ARIN
OrgAbuseName:   French, Edward C
OrgAbusePhone:  +1-989-498-4554 
OrgAbuseEmail:  ed.french@nsoit.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ECF-ARIN

OrgTechHandle: ECF-ARIN
OrgTechName:   French, Edward C
OrgTechPhone:  +1-989-498-4554 
OrgTechEmail:  ed.french@nsoit.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ECF-ARIN

OrgDNSHandle: ECF-ARIN
OrgDNSName:   French, Edward C
OrgDNSPhone:  +1-989-498-4554 
OrgDNSEmail:  ed.french@nsoit.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/ECF-ARIN

OrgNOCHandle: SKRZY1-ARIN
OrgNOCName:   Skrzypczak, Andy 
OrgNOCPhone:  +1-989-797-1085 
OrgNOCEmail:  andy.skrzypczak@nsoit.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/SKRZY1-ARIN

OrgAbuseHandle: SKRZY1-ARIN
OrgAbuseName:   Skrzypczak, Andy 
OrgAbusePhone:  +1-989-797-1085 
OrgAbuseEmail:  andy.skrzypczak@nsoit.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SKRZY1-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
AS22974	Charter Communications LLC	US

Upstreams

AS Number	Description	Country
AS22974	Charter Communications LLC	US