Report for 27506

Name

CROWNCASTLE-AS27506 - Crown Castle Fiber LLC, US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS4637) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

27506 CONEDCOM - Con Edison Communications, LLC

  Adjacency:    11  Upstream:     3  Downstream:     8
  Upstream Adjacent AS list
    AS3320    DTAG Deutsche Telekom AG
    AS2914    NTT-COMMUNICATIONS-2914 - NTT America, Inc.
    AS701     UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
  Downstream Adjacent AS list
    AS19758   STERLINGFINANCIALNET - STERLING NATIONAL BANK
    AS14394   KBCFP-NYC - KBC Financial Products
    AS20179   BONDS-AS - Tullett & Tokyo Forex, Inc.
    AS26493   GHI - Group Health Incorporated
    AS21704   NYCBOE-BGPNET - New York City Board of Education
    AS26913   FOLKSAMERICA - Folksamerica
    AS6485    TDC-AS - Track Data Corporation
    AS40182   EAGECAPITALPARTNERSLP - Eagle Capital Partners, LP

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
3998  AS27506  ORG+TRN Originate:      28928 /17.18  Transit:      12288 /18.42 CONEDCOM - Con Edison Communications, LLC

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
 4071 AS27506 CONEDCOM - Con Edison Communications, LL      6      2      0      4      2  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  64.20.160.0/19       4637 3320 27506        
  64.20.160.0/20       4637 3320 27506      - Withdrawn - matching aggregate 64.20.160.0/19 4637 3320 27506
  64.20.176.0/20       4637 3320 27506      - Withdrawn - matching aggregate 64.20.160.0/19 4637 3320 27506
  69.54.76.0/24        4637 3320 27506        
  69.64.192.0/19       4637 3320 27506        
  76.8.64.0/20         4637 3491 701 27506    

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS27506   3 More Specifics   5 Total Advertisements   CONEDCOM - Con Edison Communications, LLC
    64.20.160.0/20                64.20.160.0/19
    64.20.176.0/20                64.20.160.0/19
    76.8.64.0/20                  76.8.64.0/19

Whois Entry

whois: 402332

IANA has recorded AS27506 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS27506\n             
             #
             # 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:        2026-05-04
             Comment:        https://www.crowncastle.com/
             Ref:            https://rdap.arin.net/registry/entity/CCFL-10
             
             
             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
             
             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
             
             OrgTechHandle: ZIE-ARIN
             OrgTechName:   Zayo IP Engineering
             OrgTechPhone:  +1-866-236-2824 
             OrgTechEmail:  ipeng@zayo.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ZIE-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.
             #