Report for 33321

Name

ZAYO-33321 - 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 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.

33321 BALTICORE - Balticore, LLC

  Adjacency:     7  Upstream:     1  Downstream:     6
  Upstream Adjacent AS list
    AS174     COGENT Cogent/PSI
  Downstream Adjacent AS list
    AS25873   MERCY - MERCY MEDICAL CENTER
    AS11100   TOADNET - ToadNet, Inc.
    AS11022   ALABANZA-BALT - Alabanza, Inc.
    AS5723    JHU - Johns Hopkins University
    AS32829   PORT-NETWORKS-BALTIMORE - Port Networks, LLC
    AS26060   EMERGING-132 - EMERGING TECHNOLOGY CENTER

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
8526  AS33321  ORG+TRN Originate:       5888 /19.48  Transit:     519168 /13.01 BALTICORE - Balticore, 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       %
20152 AS33321 BALTICORE - Balticore, LLC                    6      0      0      6      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  38.102.16.0/22       4637 174 33321         
  38.102.24.0/21       4637 174 33321         
  38.112.72.0/23       4637 174 33321         
  38.118.52.0/22       4637 174 33321         
  64.57.192.0/22       4637 174 33321         
  204.145.183.0/24     4637 174 33321         

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

AS33321   5 More Specifics   7 Total Advertisements   BALTICORE - Balticore, LLC
    38.102.16.0/22                38.0.0.0/8
    38.102.24.0/21                38.0.0.0/8
    38.112.72.0/23                38.0.0.0/8
    38.118.52.0/22                38.0.0.0/8
    64.57.192.0/22                64.57.192.0/20

Whois Entry

whois: 402603

IANA has recorded AS33321 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS33321\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:       33321
             ASName:         ZAYO-33321
             ASHandle:       AS33321
             RegDate:        2017-01-04
             Updated:        2017-01-04
             Ref:            https://rdap.arin.net/registry/autnum/33321
             
             
             
             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.
             #