ASN Lookup Tool

Crown Castle Fiber LLC crowncastle.com US US 17 Routes

AS Data

AS27506

AS27506 – Crown Castle Fiber LLC

AS Number 27506
AS Name CROWNCASTLE-AS27506
Organization Crown Castle Fiber LLC(ccfl-10)
Country US
Website crowncastle.com
Number of IPv4 Routes 17
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2003-03-19

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IP Ranges

Route # IPs
64.20.186.0/24 256
64.20.175.0/24 256
209.148.48.0/20 4096
76.8.64.0/20 4096
64.20.179.0/24 256
64.20.177.0/24 256
64.20.180.0/24 256
209.148.32.0/20 4096
64.20.187.0/24 256
64.20.160.0/20 4096

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:       27506
ASName:         CROWNCASTLE-AS27506
ASHandle:       AS27506
RegDate:        2003-03-19
Updated:        2024-03-04    
Ref:            https://rdap.arin.net/registry/autnum/27506


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

Peers

AS Number Description Country
AS46887 Crown Castle Fiber LLC US
AS23004 VIEWTRADE SECURITIES US

Upstreams

AS Number Description Country
AS46887 Crown Castle Fiber LLC US

Downstreams

AS Number Description Country
AS23004 VIEWTRADE SECURITIES US

Contacts

Email Contacts

ipadmin@crowncastle.com

Abuse Contacts

abuse@crowncastle.com

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Frequently Asked Questions

ASN AS27506 is an Autonomous System Number used to identify a network for BGP internet routing.
AS27506 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.
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.