
8001 COLOGIX - Cologix, Inc, US
Adjacency: 18 Upstream: 5 Downstream: 13
Upstream Adjacent AS list
AS6461 ZAYO-6461 - Zayo Bandwidth, US
AS2497 IIJ Internet Initiative Japan Inc., JP
AS1299 TWELVE99 Arelion, fka Telia Carrier, SE
AS174 COGENT-174 - Cogent Communications, LLC, US
AS3356 LEVEL3 - Level 3 Parent, LLC, US
Downstream Adjacent AS list
AS40715 COLOGIX-COL - Cologix, Inc, US
AS3599 BINCNET - CDW Technologies LLC, US
AS30202 LEVEL-IV - Level IV, US
AS32746 CDI - Computer Design & Integration LLC, US
AS47143 TDHN, GB
AS4883 -Reserved AS-, ZZ
AS994 AS-VIIRTUE - Viirtue LLC, US
AS48582 NGENA-NW, DE
AS46472 -Reserved AS-, ZZ
AS396924 SKYLANDS-NETWORKS - Skylands Networks, US
AS33358 AE-CORPORATE-SERVICES-CO - AE CORPORATE SERVICES CO, US
AS30418 SUMT-CMH - SumTotal Systems, Inc., US
AS63157 DBI-CMH9 - DSW Information Technology LLC., US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 737 AS8001 ORG+TRN Originate: 439552 /13.25 Transit: 24576 /17.42 COLOGIX - Cologix, Inc, 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 % 3464 AS8001 COLOGIX - Cologix, Inc, US 47 19 4 32 15 31.91% Prefix AS Path Aggregation Suggestion 64.21.0.0/17 4777 2497 8001 64.21.128.0/19 4777 2497 8001 64.21.160.0/20 4777 2497 8001 64.21.176.0/21 4777 2497 8001 64.247.0.0/18 4777 2497 8001 64.247.12.0/24 4777 2497 8001 - Withdrawn - matching aggregate 64.247.0.0/18 4777 2497 8001 66.29.0.0/17 4777 2497 8001 66.104.102.0/24 4777 2497 174 8001 66.246.0.0/16 4777 2497 8001 66.246.36.0/22 4777 2497 174 8001 66.246.112.0/22 4777 2497 174 8001 67.196.0.0/16 4777 2497 8001 67.196.88.0/24 4777 2497 8001 - Withdrawn - matching aggregate 67.196.0.0/16 4777 2497 8001 67.196.184.0/21 4777 2497 6461 8001 70.47.0.0/16 4777 2497 8001 70.47.50.0/23 4777 2497 8001 - Withdrawn - matching aggregate 70.47.0.0/16 4777 2497 8001 70.47.210.0/24 4777 2497 8001 - Withdrawn - matching aggregate 70.47.0.0/16 4777 2497 8001 70.47.211.0/24 4777 2497 8001 - Withdrawn - matching aggregate 70.47.0.0/16 4777 2497 8001 71.5.34.0/24 4777 2497 174 8001 74.116.192.0/21 4777 2516 1299 8001 77.67.101.0/24 4777 2497 8001 198.102.78.0/23 4777 2497 8001 + Announce - aggregate of 198.102.78.0/24 (4777 2497 8001) and 198.102.79.0/24 (4777 2497 8001) 198.102.78.0/24 4777 2497 8001 - Withdrawn - aggregated with 198.102.79.0/24 (4777 2497 8001) 198.102.79.0/24 4777 2497 8001 - Withdrawn - aggregated with 198.102.78.0/24 (4777 2497 8001) 199.188.170.0/24 4777 2497 174 8001 199.233.220.0/22 4777 2497 8001 207.99.0.0/17 4777 2497 8001 207.99.104.0/24 4777 2497 8001 - Withdrawn - matching aggregate 207.99.0.0/17 4777 2497 8001 207.192.64.0/18 4777 2497 8001 208.76.6.0/24 4777 2497 8001 208.94.172.0/22 4777 2516 1299 8001 209.123.0.0/16 4777 2497 8001 209.123.4.0/24 4777 2497 8001 - Withdrawn - matching aggregate 209.123.0.0/16 4777 2497 8001 209.123.35.0/24 4777 2497 8001 - Withdrawn - matching aggregate 209.123.0.0/16 4777 2497 8001 209.123.73.0/24 4777 2497 8001 - Withdrawn - matching aggregate 209.123.0.0/16 4777 2497 8001 209.123.78.0/24 4777 2497 8001 - Withdrawn - matching aggregate 209.123.0.0/16 4777 2497 8001 209.123.81.0/24 4777 2497 8001 - Withdrawn - matching aggregate 209.123.0.0/16 4777 2497 8001 216.69.192.0/24 4777 2497 174 8001 216.69.194.0/23 4777 2497 174 8001 + Announce - aggregate of 216.69.194.0/24 (4777 2497 174 8001) and 216.69.195.0/24 (4777 2497 174 8001) 216.69.194.0/24 4777 2497 174 8001 - Withdrawn - aggregated with 216.69.195.0/24 (4777 2497 174 8001) 216.69.195.0/24 4777 2497 174 8001 - Withdrawn - aggregated with 216.69.194.0/24 (4777 2497 174 8001) 216.69.201.0/24 4777 2497 174 8001 216.69.206.0/23 4777 2497 174 8001 + Announce - aggregate of 216.69.206.0/24 (4777 2497 174 8001) and 216.69.207.0/24 (4777 2497 174 8001) 216.69.206.0/24 4777 2497 174 8001 - Withdrawn - aggregated with 216.69.207.0/24 (4777 2497 174 8001) 216.69.207.0/24 4777 2497 174 8001 - Withdrawn - aggregated with 216.69.206.0/24 (4777 2497 174 8001) 216.69.212.0/23 4777 2497 174 8001 + Announce - aggregate of 216.69.212.0/24 (4777 2497 174 8001) and 216.69.213.0/24 (4777 2497 174 8001) 216.69.212.0/24 4777 2497 174 8001 - Withdrawn - aggregated with 216.69.213.0/24 (4777 2497 174 8001) 216.69.213.0/24 4777 2497 174 8001 - Withdrawn - aggregated with 216.69.212.0/24 (4777 2497 174 8001) 216.69.219.0/24 4777 2497 174 8001 216.69.223.0/24 4777 2497 174 8001 216.118.64.0/18 4777 2497 8001
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS8001 31 More Specifics 47 Total Advertisements COLOGIX - Cologix, Inc, US
64.247.12.0/24 64.247.0.0/18
66.104.102.0/24 66.104.0.0/14
66.246.36.0/22 66.246.0.0/16
66.246.112.0/22 66.246.0.0/16
67.196.88.0/24 67.196.0.0/16
67.196.184.0/21 67.196.0.0/16
70.47.50.0/23 70.47.0.0/16
70.47.210.0/24 70.47.0.0/16
70.47.211.0/24 70.47.0.0/16
71.5.34.0/24 71.4.0.0/15
77.67.101.0/24 77.67.0.0/17
198.102.78.0/24 198.102.76.0/22
198.102.79.0/24 198.102.76.0/22
199.188.170.0/24 199.188.168.0/22
207.99.104.0/24 207.99.0.0/17
208.76.6.0/24 208.76.4.0/22
209.123.4.0/24 209.123.0.0/16
209.123.35.0/24 209.123.0.0/16
209.123.73.0/24 209.123.0.0/16
209.123.78.0/24 209.123.0.0/16
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
216.69.223.0/24 216.69.192.0/19
| 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 AS | Announcing-AS | ||
|---|---|---|---|
| AS4883 | Announced by | AS8001 | COLOGIX - Cologix, Inc, US |
| AS46472 | Announced by | AS8001 | COLOGIX - Cologix, Inc, US |
whois: 402332
IANA has recorded AS8001 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS8001\n
#
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# available at: https://www.arin.net/resources/registry/whois/tou/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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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
OrgNOCHandle: NETWO9665-ARIN
OrgNOCName: Network Engineering
OrgNOCPhone: +1-844-449-4357
OrgNOCEmail: noc@cologix.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NETWO9665-ARIN
OrgAbuseHandle: ABUSE5526-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-720-230-7000
OrgAbuseEmail: abuse@cologix.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE5526-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
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
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# 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/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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