Report for 8001

Name

COLOGIX - Cologix, Inc, 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.

8001 COLOGIX, US

  Adjacency:    25  Upstream:     7  Downstream:    18
  Upstream Adjacent AS list
    AS2497          IIJ Internet Initiative Japan Inc., JP
    AS174           COGENT-174, US
    AS9002          RETN-AS, GB
    AS6939          HURRICANE, US
    AS1299          TWELVE99 Arelion, fka Telia Carrier, SE
    AS3356          LEVEL3, US
    AS6461          ZAYO-6461, US
  Downstream Adjacent AS list
    AS30138         ARTECH-INFO, US
    AS26830         ASN-OPERS, US
    AS18637         AS-CLOUDLI-01, CA
    AS55171         MTS-HEALTHCARE, US
    AS3599          BINCNET, US
    AS30418         SUMT-CMH, US
    AS30202         LEVEL-IV, US
    AS40096         HPS-51-ASN, US
    AS40715         COLOGIX-COL, US
    AS396924        SKYLANDS-NETWORKS, US
    AS32746         CDI, US
    AS47143         TDHN, GB
    AS63157         DBI-CMH9, US
    AS4883          -Reserved AS-, ZZ
    AS994           AS-VIIRTUE, US
    AS48582         NGENA-NW, DE
    AS46472         -Reserved AS-, ZZ
    AS33358         AE-CORPORATE-SERVICES-CO, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
741   AS8001         ORG+TRN Originate:     441600 /13.25  Transit:      24576 /17.42 COLOGIX, 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       %
 2527 AS8001        COLOGIX, US                                       55     25      3     33     22  40.00%


  Prefix               AS Path                              Aggregation Suggestion
  64.21.0.0/17         2497 8001              
  64.21.128.0/19       2497 8001              
  64.21.160.0/20       2497 8001              
  64.21.176.0/21       2497 8001              
  64.247.0.0/18        2497 8001              
  64.247.12.0/24       2497 8001            - Withdrawn - matching aggregate 64.247.0.0/18 2497 8001
  66.29.0.0/17         2497 8001              
  66.29.98.0/24        2497 8001            - Withdrawn - matching aggregate 66.29.0.0/17 2497 8001
  66.104.102.0/24      7018 3356 8001         
  66.246.0.0/16        2497 8001              
  66.246.36.0/22       7018 3356 8001         
  66.246.112.0/22      7018 3356 8001         
  66.246.142.0/24      2497 8001            - Withdrawn - matching aggregate 66.246.0.0/16 2497 8001
  67.196.0.0/16        2497 8001              
  67.196.88.0/24       2497 8001            - Withdrawn - matching aggregate 67.196.0.0/16 2497 8001
  67.196.184.0/21      2497 6461 8001         
  70.47.0.0/16         2497 8001              
  70.47.50.0/23        2497 8001            - Withdrawn - matching aggregate 70.47.0.0/16 2497 8001
  70.47.54.0/24        2497 8001            - Withdrawn - matching aggregate 70.47.0.0/16 2497 8001
  70.47.210.0/24       2497 8001            - Withdrawn - matching aggregate 70.47.0.0/16 2497 8001
  70.47.211.0/24       2497 8001            - Withdrawn - matching aggregate 70.47.0.0/16 2497 8001
  71.5.34.0/24         7018 3356 8001         
  74.116.192.0/21      6939 8001              
  77.67.101.0/24       2497 8001              
  198.102.78.0/23      2497 8001            + Announce - aggregate of 198.102.78.0/24 (2497 8001) and 198.102.79.0/24 (2497 8001)
  198.102.78.0/24      2497 8001            - Withdrawn - aggregated with 198.102.79.0/24 (2497 8001)
  198.102.79.0/24      2497 8001            - Withdrawn - aggregated with 198.102.78.0/24 (2497 8001)
  199.188.170.0/24     7018 3356 8001         
  199.233.220.0/22     2497 8001              
  207.99.0.0/17        2497 8001              
  207.99.104.0/24      2497 8001            - Withdrawn - matching aggregate 207.99.0.0/17 2497 8001
  207.192.64.0/18      2497 8001              
  207.192.76.0/24      2497 8001            - Withdrawn - matching aggregate 207.192.64.0/18 2497 8001
  208.76.6.0/24        2497 8001              
  208.94.172.0/22      6939 8001              
  209.123.0.0/16       2497 8001              
  209.123.4.0/24       2497 8001            - Withdrawn - matching aggregate 209.123.0.0/16 2497 8001
  209.123.35.0/24      2497 8001            - Withdrawn - matching aggregate 209.123.0.0/16 2497 8001
  209.123.53.0/24      2497 8001            - Withdrawn - matching aggregate 209.123.0.0/16 2497 8001
  209.123.55.0/24      2497 8001            - Withdrawn - matching aggregate 209.123.0.0/16 2497 8001
  209.123.73.0/24      2497 8001            - Withdrawn - matching aggregate 209.123.0.0/16 2497 8001
  209.123.78.0/24      2497 8001            - Withdrawn - matching aggregate 209.123.0.0/16 2497 8001
  209.123.81.0/24      2497 8001            - Withdrawn - matching aggregate 209.123.0.0/16 2497 8001
  209.123.121.0/24     2497 8001            - Withdrawn - matching aggregate 209.123.0.0/16 2497 8001
  209.123.151.0/24     2497 8001            - Withdrawn - matching aggregate 209.123.0.0/16 2497 8001
  216.69.192.0/24      7018 3356 8001         
  216.69.194.0/23      7018 3356 8001       + Announce - aggregate of 216.69.194.0/24 (7018 3356 8001) and 216.69.195.0/24 (7018 3356 8001)
  216.69.194.0/24      7018 3356 8001       - Withdrawn - aggregated with 216.69.195.0/24 (7018 3356 8001)
  216.69.195.0/24      7018 3356 8001       - Withdrawn - aggregated with 216.69.194.0/24 (7018 3356 8001)
  216.69.201.0/24      7018 3356 8001         
  216.69.206.0/24      7018 3356 8001         
  216.69.207.0/24      6939 3356 8001         
  216.69.212.0/23      7018 3356 8001       + Announce - aggregate of 216.69.212.0/24 (7018 3356 8001) and 216.69.213.0/24 (7018 3356 8001)
  216.69.212.0/24      7018 3356 8001       - Withdrawn - aggregated with 216.69.213.0/24 (7018 3356 8001)
  216.69.213.0/24      7018 3356 8001       - Withdrawn - aggregated with 216.69.212.0/24 (7018 3356 8001)
  216.69.219.0/24      6939 3356 8001         
  216.69.223.0/24      7018 3356 8001         
  216.118.64.0/18      2497 8001              

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

AS8001   23 More Specifics   38 Total Advertisements   COLOGIX, US
    65.61.52.0/23                 65.61.52.0/22
    65.61.52.0/24                 65.61.52.0/22
    66.246.36.0/22                66.246.0.0/16
    66.246.40.0/22                66.246.0.0/16
    66.246.107.0/24               66.246.0.0/16
    66.246.108.0/24               66.246.0.0/16
    66.246.112.0/22               66.246.0.0/16
    67.196.184.0/21               67.196.0.0/16
    70.61.246.0/24                70.60.0.0/14
    71.5.34.0/24                  71.4.0.0/15
    77.67.101.0/24                77.67.0.0/17
    199.188.170.0/24              199.188.168.0/22
    208.76.6.0/24                 208.76.4.0/22
    209.123.81.0/24               209.123.0.0/16
    216.69.192.0/24               216.69.192.0/19
    216.69.194.0/24               216.69.192.0/19
    216.69.195.0/24               216.69.192.0/19
    216.69.201.0/24               216.69.192.0/19
    216.69.206.0/24               216.69.192.0/19
    216.69.207.0/24               216.69.192.0/19
    216.69.212.0/24               216.69.192.0/19
    216.69.213.0/24               216.69.192.0/19
    216.69.219.0/24               216.69.192.0/19

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 64.21.128.0/18              Announced
    + 67.219.128.0/20             Announced
    - 64.21.128.0/19              Withdrawn
    - 64.21.160.0/20              Withdrawn
    - 64.21.176.0/21              Withdrawn

Bogus Prefixes Announced by this AS

Prefix	Origin AS	AS Description	Unallocated block
199.233.220.0/22	AS8001	COLOGIX - Cologix, Inc, US	199.233.220.0 - 199.233.223.255

Bogus ASes Announced by this AS

Bogus AS		Announcing-AS
AS4883	Announced by	AS8001	COLOGIX - Cologix, Inc, US
AS46472	Announced by	AS8001	COLOGIX - Cologix, Inc, US

Whois Entry

whois: 402609

IANA has recorded AS8001 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS8001\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:       8001
             ASName:         COLOGIX
             ASHandle:       AS8001
             RegDate:        1996-08-22
             Updated:        2022-04-20
             Ref:            https://rdap.arin.net/registry/autnum/8001
             
             
             OrgName:        Cologix, Inc
             OrgId:          COLOG-8-Z
             Address:        1601 19th Street
             Address:        Suite 650
             City:           Denver
             StateProv:      CO
             PostalCode:     80202
             Country:        US
             RegDate:        2022-02-03
             Updated:        2025-05-07
             Ref:            https://rdap.arin.net/registry/entity/COLOG-8-Z
             
             
             OrgTechHandle: JOBAY1-ARIN
             OrgTechName:   Jobay, Mike 
             OrgTechPhone:  +1-973-590-5177 
             OrgTechEmail:  mike.jobay@cologix.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/JOBAY1-ARIN
             
             OrgTechHandle: BECKJ20-ARIN
             OrgTechName:   Beck, Josh 
             OrgTechPhone:  +1-855-449-4357 
             OrgTechEmail:  josh.beck@cologix.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/BECKJ20-ARIN
             
             OrgAbuseHandle: ABUSE5526-ARIN
             OrgAbuseName:   Abuse
             OrgAbusePhone:  +1-720-230-7000 
             OrgAbuseEmail:  abuse@cologix.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5526-ARIN
             
             OrgNOCHandle: NETWO9665-ARIN
             OrgNOCName:   Network Engineering
             OrgNOCPhone:  +1-844-449-4357 
             OrgNOCEmail:  noc@cologix.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO9665-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.
             #