ASN AS40889 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS40889?

AS40889 is listed under Greystone IT, 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.

AS40889 Greystone IT, Inc. | IPGeolocation.io

ASN Lookup Tool

Greystone IT, Inc. greystoneit.com

US 2 Routes

AS Data

AS40889

AS40889 – Greystone IT, Inc.

AS Number	40889
AS Name	GREYSTONE
Organization	Greystone IT, Inc.(greys-6)
Country	US
Website	greystoneit.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2008-05-13

ASN Intelligence API for production workflows

Use ASN data for AS40889 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
66.151.108.0/24	AS40889	Greystone IT, Inc.	Greystone IT, Inc.	256
192.64.200.0/24	AS40889	Greystone IT, Inc.	Greystone IT, Inc.	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:       40889
ASName:         GREYSTONE
ASHandle:       AS40889
RegDate:        2008-05-13
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/40889


OrgName:        Greystone IT, Inc.
OrgId:          GREYS-6
Address:        419 Belle Air Lane
City:           Warrenton
StateProv:      VA
PostalCode:     20186
Country:        US
RegDate:        2008-04-16
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/GREYS-6


OrgAbuseHandle: ADMIN1354-ARIN
OrgAbuseName:   Admin
OrgAbusePhone:  +1-540-341-2100 
OrgAbuseEmail:  Acsontos@greystoneit.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ADMIN1354-ARIN

OrgTechHandle: ADMIN1354-ARIN
OrgTechName:   Admin
OrgTechPhone:  +1-540-341-2100 
OrgTechEmail:  Acsontos@greystoneit.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ADMIN1354-ARIN

RAbuseHandle: ADMIN1354-ARIN
RAbuseName:   Admin
RAbusePhone:  +1-540-341-2100 
RAbuseEmail:  Acsontos@greystoneit.com
RAbuseRef:    https://rdap.arin.net/registry/entity/ADMIN1354-ARIN

RTechHandle: ADMIN1354-ARIN
RTechName:   Admin
RTechPhone:  +1-540-341-2100 
RTechEmail:  Acsontos@greystoneit.com
RTechRef:    https://rdap.arin.net/registry/entity/ADMIN1354-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
AS286	GTT Communications Inc.	NL
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US
AS10913	Unitas Global	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US
AS10913	Unitas Global	US
AS174	Cogent Communications, LLC	US