ASN AS21941 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21941?

AS21941 is listed under Precisely Software Incorporated.

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.

AS21941 Precisely Software Incorporated

ASN Lookup Tool

Precisely Software Incorporated precisely.com

US 1 Routes

AS Data

AS21941

AS21941 – Precisely Software Incorporated

AS Number	21941
AS Name	SYNCSORT-INC
Organization	Precisely Software Incorporated(syncso)
Country	US
Website	precisely.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2001-07-17

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Use ASN data for AS21941 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.62.239.0/24	AS21941	Precisely Software Incorporated	Precisely Software Incorporated	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:       21941
ASName:         SYNCSORT-INC
ASHandle:       AS21941
RegDate:        2001-07-17
Updated:        2019-11-20    
Ref:            https://rdap.arin.net/registry/autnum/21941


OrgName:        Precisely Software Incorporated
OrgId:          SYNCSO
Address:        1700 District Ave
City:           Burlington
StateProv:      MA
PostalCode:     01803
Country:        US
RegDate:        1993-03-23
Updated:        2022-04-01
Comment:        https://www.precisely.com
Ref:            https://rdap.arin.net/registry/entity/SYNCSO


OrgRoutingHandle: DATAC15-ARIN
OrgRoutingName:   Data Center
OrgRoutingPhone:  +1-201-746-7001 
OrgRoutingEmail:  itsupport@syncsort.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/DATAC15-ARIN

OrgAbuseHandle: DATAC15-ARIN
OrgAbuseName:   Data Center
OrgAbusePhone:  +1-201-746-7001 
OrgAbuseEmail:  itsupport@syncsort.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DATAC15-ARIN

OrgTechHandle: BLA157-ARIN
OrgTechName:   LANIUS, BRIAN 
OrgTechPhone:  +1-845-203-4267 
OrgTechEmail:  blanius@syncsort.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BLA157-ARIN

OrgDNSHandle: DATAC15-ARIN
OrgDNSName:   Data Center
OrgDNSPhone:  +1-201-746-7001 
OrgDNSEmail:  itsupport@syncsort.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/DATAC15-ARIN

OrgNOCHandle: DATAC15-ARIN
OrgNOCName:   Data Center
OrgNOCPhone:  +1-201-746-7001 
OrgNOCEmail:  itsupport@syncsort.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/DATAC15-ARIN

OrgTechHandle: DATAC15-ARIN
OrgTechName:   Data Center
OrgTechPhone:  +1-201-746-7001 
OrgTechEmail:  itsupport@syncsort.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DATAC15-ARIN

OrgTechHandle: WILLI3605-ARIN
OrgTechName:   Williamson, Aaron 
OrgTechPhone:  +1-317-572-1849 
OrgTechEmail:  aaron.williamson@precisely.com
OrgTechRef:    https://rdap.arin.net/registry/entity/WILLI3605-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
AS46887	Crown Castle Fiber LLC	US
AS54004	Cablevision Lightpath LLC	US

Upstreams

AS Number	Description	Country
AS46887	Crown Castle Fiber LLC	US
AS54004	Cablevision Lightpath LLC	US