ASN Lookup Tool

Zuckerman Spaeder LLP zuckerman.com US US 0 Routes

AS Data

AS40537

AS40537 – Zuckerman Spaeder LLP

AS Number 40537
AS Name ASN-ZS-ASHBURN
Organization Zuckerman Spaeder LLP(zsl-16)
Country US
Website zuckerman.com
Number of IPv4 Routes 0
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2020-07-28

ASN Intelligence API for production workflows

Use ASN data for AS40537 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

Get ASN API Key ASN API Docs

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:       40537
ASName:         ASN-ZS-ASHBURN
ASHandle:       AS40537
RegDate:        2020-07-28
Updated:        2025-12-09    
Ref:            https://rdap.arin.net/registry/autnum/40537


OrgName:        Zuckerman Spaeder LLP
OrgId:          ZSL-16
Address:        1800 M Street NW
Address:        Suite 1000
City:           Washington
StateProv:      DC
PostalCode:     20036
Country:        US
RegDate:        2020-07-02
Updated:        2020-07-02
Ref:            https://rdap.arin.net/registry/entity/ZSL-16


OrgRoutingHandle: ADMIN7024-ARIN
OrgRoutingName:   Administrator
OrgRoutingPhone:  +1-202-778-1800 
OrgRoutingEmail:  efountain@zuckerman.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ADMIN7024-ARIN

OrgDNSHandle: ADMIN7024-ARIN
OrgDNSName:   Administrator
OrgDNSPhone:  +1-202-778-1800 
OrgDNSEmail:  efountain@zuckerman.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/ADMIN7024-ARIN

OrgNOCHandle: ADMIN7024-ARIN
OrgNOCName:   Administrator
OrgNOCPhone:  +1-202-778-1800 
OrgNOCEmail:  efountain@zuckerman.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ADMIN7024-ARIN

OrgAbuseHandle: ADMIN7024-ARIN
OrgAbuseName:   Administrator
OrgAbusePhone:  +1-202-778-1800 
OrgAbuseEmail:  efountain@zuckerman.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ADMIN7024-ARIN

OrgTechHandle: ADMIN7024-ARIN
OrgTechName:   Administrator
OrgTechPhone:  +1-202-778-1800 
OrgTechEmail:  efountain@zuckerman.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ADMIN7024-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

Ready to get started?Get Started with IP Intelligence API Today

Get Started
CTA Illustration

Frequently Asked Questions

ASN AS40537 is an Autonomous System Number used to identify a network for BGP internet routing.
AS40537 is listed under Zuckerman Spaeder LLP.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
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.