ASN Lookup Tool

Crown Castle Fiber LLC crowncastle.com US US 0 Routes

AS Data

AS11557

AS11557 – Crown Castle Fiber LLC

AS Number 11557
AS Name CROWNCASTLE-AS11557
Organization Crown Castle Fiber LLC(ccfl-10)
Country US
Website crowncastle.com
Number of IPv4 Routes 0
Number of IPv6 Routes 0
ASN type ISP
Registry ARIN
Date Allocated 2007-07-12

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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:       11557
ASName:         CROWNCASTLE-AS11557
ASHandle:       AS11557
RegDate:        2007-07-12
Updated:        2024-03-04    
Ref:            https://rdap.arin.net/registry/autnum/11557



OrgName:        Crown Castle Fiber LLC
OrgId:          CCFL-10
Address:        8020 Katy Freeway
City:           Houston
StateProv:      TX
PostalCode:     77024
Country:        US
RegDate:        2023-07-12
Updated:        2026-02-19
Comment:        https://www.crowncastle.com/
Ref:            https://rdap.arin.net/registry/entity/CCFL-10


OrgAbuseHandle: CCAR-ARIN
OrgAbuseName:   Crown Castle Abuse Reports
OrgAbusePhone:  +1-855-933-4237 
OrgAbuseEmail:  abuse@crowncastle.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CCAR-ARIN

OrgTechHandle: CCIA3-ARIN
OrgTechName:   Crown Castle IP Admin
OrgTechPhone:  +1-855-933-4237 
OrgTechEmail:  ipadmin@crowncastle.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CCIA3-ARIN

OrgNOCHandle: CCNOC3-ARIN
OrgNOCName:   Crown Castle Network Operations Center
OrgNOCPhone:  +1-855-933-4237 
OrgNOCEmail:  fibersupport@crowncastle.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/CCNOC3-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

Contacts

Email Contacts

ipadmin@crowncastle.com

Abuse Contacts

abuse@crowncastle.com

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Frequently Asked Questions

ASN AS11557 is an Autonomous System Number used to identify a network for BGP internet routing.
AS11557 is listed under Crown Castle Fiber LLC.
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.
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