Report for 22637

Name

C-R-T - 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.

22637 C-R-T - CONTROL ROOM TECHNOLOGIES

  Adjacency:     2  Upstream:     1  Downstream:     1
  Upstream Adjacent AS list
    AS3356    LEVEL3 Level 3 Communications
  Downstream Adjacent AS list
    AS20227   ACCIDENTFUND-NET - Accident Fund Insurance Company of America

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
6183  AS22637  ORG+TRN Originate:      10240 /18.68  Transit:        256 /24.00 C-R-T - CONTROL ROOM TECHNOLOGIES

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       %
  697 AS22637 C-R-T - CONTROL ROOM TECHNOLOGIES            33     26      6     13     20  60.61%


  Prefix               AS Path                              Aggregation Suggestion
  63.89.180.0/23       4637 3356 22637        
  63.89.180.0/24       4637 3356 22637      - Withdrawn - matching aggregate 63.89.180.0/23 4637 3356 22637
  63.89.181.0/24       4637 3356 22637      - Withdrawn - matching aggregate 63.89.180.0/23 4637 3356 22637
  65.207.224.0/23      4637 3356 22637        
  65.207.224.0/24      4637 3356 22637      - Withdrawn - matching aggregate 65.207.224.0/23 4637 3356 22637
  65.207.225.0/24      4637 3356 22637      - Withdrawn - matching aggregate 65.207.224.0/23 4637 3356 22637
  192.203.222.0/23     4637 3356 22637      + Announce - aggregate of 192.203.222.0/24 (4637 3356 22637) and 192.203.223.0/24 (4637 3356 22637)
  192.203.222.0/24     4637 3356 22637      - Withdrawn - aggregated with 192.203.223.0/24 (4637 3356 22637)
  192.203.223.0/24     4637 3356 22637      - Withdrawn - aggregated with 192.203.222.0/24 (4637 3356 22637)
  199.254.220.0/24     4637 3356 22637        
  216.157.192.0/22     4637 3356 22637        
  216.157.197.0/24     4637 3356 22637        
  216.157.198.0/23     4637 3356 22637        
  216.157.199.0/24     4637 3356 22637      - Withdrawn - matching aggregate 216.157.198.0/23 4637 3356 22637
  216.157.200.0/21     4637 3356 22637      + Announce - aggregate of 216.157.200.0/22 (4637 3356 22637) and 216.157.204.0/22 (4637 3356 22637)
  216.157.200.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.201.0/24 (4637 3356 22637)
  216.157.201.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.200.0/24 (4637 3356 22637)
  216.157.202.0/23     4637 3356 22637      - Withdrawn - aggregated with 216.157.200.0/23 (4637 3356 22637)
  216.157.204.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.205.0/24 (4637 3356 22637)
  216.157.205.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.204.0/24 (4637 3356 22637)
  216.157.206.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.207.0/24 (4637 3356 22637)
  216.157.207.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.206.0/24 (4637 3356 22637)
  216.157.208.0/22     4637 3356 22637      + Announce - aggregate of 216.157.208.0/23 (4637 3356 22637) and 216.157.210.0/23 (4637 3356 22637)
  216.157.208.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.209.0/24 (4637 3356 22637)
  216.157.209.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.208.0/24 (4637 3356 22637)
  216.157.210.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.211.0/24 (4637 3356 22637)
  216.157.211.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.210.0/24 (4637 3356 22637)
  216.157.212.0/23     4637 3356 22637      + Announce - aggregate of 216.157.212.0/24 (4637 3356 22637) and 216.157.213.0/24 (4637 3356 22637)
  216.157.212.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.213.0/24 (4637 3356 22637)
  216.157.213.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.212.0/24 (4637 3356 22637)
  216.157.214.0/24     4637 3356 22637        
  216.157.216.0/22     4637 3356 22637      + Announce - aggregate of 216.157.216.0/23 (4637 3356 22637) and 216.157.218.0/23 (4637 3356 22637)
  216.157.216.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.217.0/24 (4637 3356 22637)
  216.157.217.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.216.0/24 (4637 3356 22637)
  216.157.218.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.219.0/24 (4637 3356 22637)
  216.157.219.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.218.0/24 (4637 3356 22637)
  216.157.220.0/23     4637 3356 22637      + Announce - aggregate of 216.157.220.0/24 (4637 3356 22637) and 216.157.221.0/24 (4637 3356 22637)
  216.157.220.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.221.0/24 (4637 3356 22637)
  216.157.221.0/24     4637 3356 22637      - Withdrawn - aggregated with 216.157.220.0/24 (4637 3356 22637)

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

AS22637   32 More Specifics   34 Total Advertisements   C-R-T - CONTROL ROOM TECHNOLOGIES
    63.89.180.0/23                63.64.0.0/10
    63.89.180.0/24                63.64.0.0/10
    63.89.181.0/24                63.64.0.0/10
    65.207.224.0/23               65.192.0.0/11
    65.207.224.0/24               65.192.0.0/11
    65.207.225.0/24               65.192.0.0/11
    192.203.222.0/24              192.203.222.0/23
    192.203.223.0/24              192.203.222.0/23
    216.157.192.0/22              216.157.192.0/19
    216.157.197.0/24              216.157.192.0/19
    216.157.198.0/23              216.157.192.0/19
    216.157.199.0/24              216.157.192.0/19
    216.157.200.0/24              216.157.192.0/19
    216.157.204.0/24              216.157.192.0/19
    216.157.205.0/24              216.157.192.0/19
    216.157.206.0/24              216.157.192.0/19
    216.157.207.0/24              216.157.192.0/19
    216.157.208.0/24              216.157.192.0/19
    216.157.209.0/24              216.157.192.0/19
    216.157.210.0/24              216.157.192.0/19
    216.157.211.0/24              216.157.192.0/19
    216.157.212.0/24              216.157.192.0/19
    216.157.213.0/24              216.157.192.0/19
    216.157.214.0/24              216.157.192.0/19
    216.157.216.0/24              216.157.192.0/19
    216.157.217.0/24              216.157.192.0/19
    216.157.218.0/24              216.157.192.0/19
    216.157.219.0/24              216.157.192.0/19
    216.157.220.0/24              216.157.192.0/19
    216.157.221.0/24              216.157.192.0/19
    216.157.222.0/24              216.157.192.0/19
    216.157.223.0/24              216.157.192.0/19

Whois Entry

whois: 402603

IANA has recorded AS22637 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS22637\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:       22637
             ASName:         C-R-T
             ASHandle:       AS22637
             RegDate:        2001-10-26
             Updated:        2025-02-24
             Ref:            https://rdap.arin.net/registry/autnum/22637
             
             
             
             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.
             #