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AS39978 REED SMITH 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

REED SMITH LLP reedsmith.com

US 2 Routes

AS Data

AS39978

AS39978 – REED SMITH LLP

AS Number	39978
AS Name	REED-SMITH-ASN
Organization	REED SMITH LLP(rsl-29)
Country	US
Website	reedsmith.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2006-05-30

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Use ASN data for AS39978 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
155.254.205.0/24	AS39978	REED SMITH LLP	REED SMITH LLP	256
155.254.204.0/24	AS39978	REED SMITH LLP	REED SMITH LLP	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:       39978
ASName:         REED-SMITH-ASN
ASHandle:       AS39978
RegDate:        2006-05-30
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/39978


OrgName:        REED SMITH LLP
OrgId:          RSL-29
Address:        20 Stanwix St
Address:        Suite 1200
City:           PITTSBURGH
StateProv:      PA
PostalCode:     15222
Country:        US
RegDate:        2006-05-18
Updated:        2018-04-16
Ref:            https://rdap.arin.net/registry/entity/RSL-29


OrgTechHandle: RSLRC-ARIN
OrgTechName:   Reed Smith LLP Registry Contact
OrgTechPhone:  +1-412-288-3330 
OrgTechEmail:  RegistryContact@ReedSmith.com
OrgTechRef:    https://rdap.arin.net/registry/entity/RSLRC-ARIN

OrgAbuseHandle: RSLAC-ARIN
OrgAbuseName:   Reed Smith LLP Abuse Contact
OrgAbusePhone:  +1-412-288-3330 
OrgAbuseEmail:  abuse@reedsmith.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RSLAC-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
AS701	Verizon Business/UUnet	US
AS174	Cogent Communications, LLC	US
AS701	Verizon Business	US

Upstreams

AS Number	Description	Country
AS174	Cogent Communications, LLC	US
AS701	Verizon Business	US

Contacts

Email Contacts

RegistryContact@ReedSmith.com

Abuse Contacts

abuse@reedsmith.com

Frequently Asked Questions

What is ASN AS39978?

ASN AS39978 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS39978?

AS39978 is listed under REED SMITH 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.