AS26551 Sargent & Lundy Engineers

• IPv4 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	151.154.0.0/16	Sargent & Lundy Engineers		151.154.0.0/16	ARIN
	151.154.128.0/20	Sargent & Lundy Engineers		151.154.0.0/16	ARIN

• IPv4 Peers

Country	ASN	Name	Description
	AS3356	LEVEL3	Level 3 Parent, LLC
	AS6461	ZAYO-6461	Zayo Bandwidth

• IPv4 Upstreams

Country	ASN	Name	Description
	AS6461	ZAYO-6461	Zayo Bandwidth
	AS3356	LEVEL3	Level 3 Parent, LLC

IPv4 Upstream Graph

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IPv4 Upstream Graph

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#
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ASNumber:       26551
ASName:         SARGENT-AND-LUNDY
ASHandle:       AS26551
RegDate:        2002-10-15
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/26551


OrgName:        Sargent & Lundy Engineers
OrgId:          SLE-1
Address:        55 E. Monroe Street
City:           Chicago
StateProv:      IL
PostalCode:     60603
Country:        US
RegDate:        1991-07-30
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/SLE-1


OrgAbuseHandle: CB2411-ARIN
OrgAbuseName:   Berns, Christine 
OrgAbusePhone:  +1-312-269-3598 
OrgAbuseEmail:  christine.m.berns@sargentlundy.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CB2411-ARIN

OrgTechHandle: CB2411-ARIN
OrgTechName:   Berns, Christine 
OrgTechPhone:  +1-312-269-3598 
OrgTechEmail:  christine.m.berns@sargentlundy.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CB2411-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 1997-2025, American Registry for Internet Numbers, Ltd.
#