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AS21781 The Dalton School | IPGeolocation.io

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WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

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The Dalton School dalton.org

US 0 Routes

AS Data

AS21781

AS21781 – The Dalton School

AS Number	21781
AS Name	DALTONSCHOOL
Organization	The Dalton School(theda-19)
Country	US
Website	dalton.org
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2012-01-13

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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:       21781
ASName:         DALTONSCHOOL
ASHandle:       AS21781
RegDate:        2012-01-13
Updated:        2012-01-13    
Ref:            https://rdap.arin.net/registry/autnum/21781


OrgName:        The Dalton School
OrgId:          THEDA-19
Address:        108 E 89th St.
City:           New York
StateProv:      NY
PostalCode:     10128
Country:        US
RegDate:        2007-03-27
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/THEDA-19


OrgAbuseHandle: JNE100-ARIN
OrgAbuseName:   Neiers, John 
OrgAbusePhone:  +1-212-423-5489 
OrgAbuseEmail:  john@dalton.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/JNE100-ARIN

OrgTechHandle: JNE100-ARIN
OrgTechName:   Neiers, John 
OrgTechPhone:  +1-212-423-5489 
OrgTechEmail:  john@dalton.org
OrgTechRef:    https://rdap.arin.net/registry/entity/JNE100-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

Frequently Asked Questions

What is ASN AS21781?

ASN AS21781 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21781?

AS21781 is listed under The Dalton School.

What do peers, upstreams, and downstreams mean?

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 included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.