Report for 30372

Name

AS30372 - 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 AS2.0) 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.

30372 AS30372 - Crown Castle Fiber LLC, US

  Adjacency:     4  Upstream:     2  Downstream:     2
  Upstream Adjacent AS list
    AS13789         INTERNAP-BLK3 - Unitas Global, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
  Downstream Adjacent AS list
    AS40167         SCHIFFRINBARROWAY - Schiffrin & Barroway, LLP, US
    AS40179         HC06 - Hunterdon Central Regional High School, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
28861 AS30372        ORG+TRN Originate:       1792 /21.19  Transit:        256 /24.00 AS30372 - Crown Castle Fiber LLC, US

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       %
21739 AS30372       AS30372 - Crown Castle Fiber LLC, US               7      2      1      6      1  14.29%


  Prefix               AS Path                              Aggregation Suggestion
  8.20.92.0/24         4777 2497 3356 30372   
  8.41.192.0/24        4777 2497 3356 30372   
  8.41.196.0/24        4777 2497 3356 30372   
  8.41.205.0/24        4777 2497 3356 30372   
  8.41.206.0/23        4777 2497 3356 30372 + Announce - aggregate of 8.41.206.0/24 (4777 2497 3356 30372) and 8.41.207.0/24 (4777 2497 3356 30372)
  8.41.206.0/24        4777 2497 3356 30372 - Withdrawn - aggregated with 8.41.207.0/24 (4777 2497 3356 30372)
  8.41.207.0/24        4777 2497 3356 30372 - Withdrawn - aggregated with 8.41.206.0/24 (4777 2497 3356 30372)
  8.225.194.0/24       4777 2497 3356 30372   

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

AS30372   7 More Specifics   7 Total Advertisements   AS30372 - Crown Castle Fiber LLC, US
    8.20.92.0/24                  8.16.0.0/12
    8.41.192.0/24                 8.32.0.0/11
    8.41.196.0/24                 8.32.0.0/11
    8.41.205.0/24                 8.32.0.0/11
    8.41.206.0/24                 8.32.0.0/11
    8.41.207.0/24                 8.32.0.0/11
    8.225.194.0/24                8.224.0.0/14

Whois Entry

whois: 402591

IANA has recorded AS30372 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS30372\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:       30372
             ASName:         ZAYO-CCF-AS30372
             ASHandle:       AS30372
             RegDate:        2014-07-08
             Updated:        2026-06-01
             Ref:            https://rdap.arin.net/registry/autnum/30372
             
             
             
             OrgName:        Zayo Bandwidth
             OrgId:          ZAYOB
             Address:        1401 Wynkoop St.
             Address:        #500
             City:           Denver
             StateProv:      CO
             PostalCode:     80202
             Country:        US
             RegDate:        2007-10-12
             Updated:        2024-11-25
             Ref:            https://rdap.arin.net/registry/entity/ZAYOB
             
             
             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
             
             OrgAbuseHandle: ABUSE5675-ARIN
             OrgAbuseName:   Abuse
             OrgAbusePhone:  +1-866-236-2824 
             OrgAbuseEmail:  abuse@zayo.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5675-ARIN
             
             OrgNOCHandle: ZIE-ARIN
             OrgNOCName:   Zayo IP Engineering
             OrgNOCPhone:  +1-866-236-2824 
             OrgNOCEmail:  ipeng@zayo.com
             OrgNOCRef:    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.
             #