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.

AS15018 Seyfarth Shaw LLP | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

Search ASN

AS Data

IP Routes

Raw Whois

Parsed Whois

Peers

Upstreams

Downstreams

Legacy Routes

Seyfarth Shaw LLP seyfarth.com

US 0 Routes

AS Data

AS15018

AS15018 – Seyfarth Shaw LLP

AS Number	15018
AS Name	SEYFARTH-SHAW9
Organization	Seyfarth Shaw LLP(seyfa)
Country	US
Website	seyfarth.com
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2008-01-03

ASN Intelligence API for production workflows

Use ASN data for AS15018 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:       15018
ASName:         SEYFARTH-SHAW9
ASHandle:       AS15018
RegDate:        2008-01-03
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/15018


OrgName:        Seyfarth Shaw LLP
OrgId:          SEYFA
Address:        233 South Wacker Drive 
Address:        Suite 8000
City:           CHICAGO
StateProv:      IL
PostalCode:     60606
Country:        US
RegDate:        2006-09-22
Updated:        2018-12-31
Ref:            https://rdap.arin.net/registry/entity/SEYFA


OrgAbuseHandle: CASTL33-ARIN
OrgAbuseName:   Castle, Jon 
OrgAbusePhone:  +1-312-460-6890 
OrgAbuseEmail:  jcastle@seyfarth.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CASTL33-ARIN

OrgTechHandle: CASTL33-ARIN
OrgTechName:   Castle, Jon 
OrgTechPhone:  +1-312-460-6890 
OrgTechEmail:  jcastle@seyfarth.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CASTL33-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 AS15018?

ASN AS15018 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS15018?

AS15018 is listed under Seyfarth Shaw LLP.

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.