Report for 16503

Name

ZAYO-16503 - Zayo Bandwidth, 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 AS6447) 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.

16503 ZAYO-16503, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS19092         360NETWORKS-, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
6737  AS16503        ORIGIN  Originate:      20736 /17.66  Transit:          0 /0.00  ZAYO-16503, 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       %
34399 AS16503       ZAYO-16503, US                                     4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  64.20.96.0/19        7018 6461 19092 16503   
  64.124.127.0/24      7018 6461 19092 16503   
  66.45.192.0/19       7018 6461 19092 16503   
  216.178.48.0/20      7018 6461 19092 16503   

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

AS16503   4 More Specifics   7 Total Advertisements   ZAYO-16503, US
    64.20.104.0/24                64.20.96.0/19
    64.20.105.0/24                64.20.96.0/19
    64.20.107.0/24                64.20.96.0/19
    64.124.127.0/24               64.124.0.0/17

Whois Entry

whois: 402590

IANA has recorded AS16503 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS16503\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:       16503
             ASName:         ZAYO-16503
             ASHandle:       AS16503
             RegDate:        2000-05-04
             Updated:        2016-09-07
             Ref:            https://rdap.arin.net/registry/autnum/16503
             
             
             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.
             #