
16751 OPENTEXT-NA-CA-1 - Open Text Corporation, CA
Adjacency: 4 Upstream: 4 Downstream: 0
Upstream Adjacent AS list
AS6461 ZAYO-6461 - Zayo Bandwidth, US
AS3356 LEVEL3 - Level 3 Parent, LLC, US
AS701 UUNET - Verizon Business, US
AS8220 COLT - COLT Technology Services Group Limited, GB
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 8617 AS16751 ORIGIN Originate: 13568 /18.27 Transit: 0 /0.00 OPENTEXT-NA-CA-1 - Open Text Corporation, CA
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 % 6385 AS16751 OPENTEXT-NA-CA-1 - Open Text Corporation, CA 25 10 3 18 7 28.00% Prefix AS Path Aggregation Suggestion 129.84.0.0/22 4777 2516 701 16751 + Announce - aggregate of 129.84.0.0/23 (4777 2516 701 16751) and 129.84.2.0/23 (4777 2516 701 16751) 129.84.0.0/24 4777 2516 701 16751 - Withdrawn - aggregated with 129.84.1.0/24 (4777 2516 701 16751) 129.84.1.0/24 4777 2516 701 16751 - Withdrawn - aggregated with 129.84.0.0/24 (4777 2516 701 16751) 129.84.2.0/23 4777 2516 701 16751 - Withdrawn - aggregated with 129.84.0.0/23 (4777 2516 701 16751) 129.84.6.0/24 4777 2516 701 16751 129.84.8.0/23 4777 2516 701 16751 129.84.10.0/24 4777 2516 701 16751 129.84.13.0/24 4777 2516 701 16751 129.84.14.0/24 4777 2516 701 16751 129.84.16.0/24 4777 2516 701 16751 129.84.88.0/23 4777 2516 701 16751 + Announce - aggregate of 129.84.88.0/24 (4777 2516 701 16751) and 129.84.89.0/24 (4777 2516 701 16751) 129.84.88.0/24 4777 2516 701 16751 - Withdrawn - aggregated with 129.84.89.0/24 (4777 2516 701 16751) 129.84.89.0/24 4777 2516 701 16751 - Withdrawn - aggregated with 129.84.88.0/24 (4777 2516 701 16751) 142.75.253.0/24 4777 2516 3356 16751 143.172.0.0/20 4777 2516 701 16751 + Announce - aggregate of 143.172.0.0/21 (4777 2516 701 16751) and 143.172.8.0/21 (4777 2516 701 16751) 143.172.0.0/21 4777 2516 701 16751 - Withdrawn - aggregated with 143.172.8.0/21 (4777 2516 701 16751) 143.172.8.0/21 4777 2516 701 16751 - Withdrawn - aggregated with 143.172.0.0/21 (4777 2516 701 16751) 149.235.224.0/21 4777 2516 8220 16751 149.235.241.0/24 4777 2516 8220 16751 149.235.254.0/24 4777 2516 8220 16751 199.71.120.0/24 4777 2497 6461 16751 16751 16751 204.90.140.0/22 4777 2516 701 16751 204.90.141.0/24 4777 2516 701 16751 - Withdrawn - matching aggregate 204.90.140.0/22 4777 2516 701 16751 204.90.142.0/23 4777 2516 701 16751 - Withdrawn - matching aggregate 204.90.140.0/22 4777 2516 701 16751 204.90.143.0/24 4777 2516 701 16751 - Withdrawn - matching aggregate 204.90.140.0/22 4777 2516 701 16751 204.90.144.0/23 4777 2516 701 16751 204.138.115.0/24 4777 2516 701 16751 205.211.178.0/24 4777 2516 701 16751
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS16751 22 More Specifics 25 Total Advertisements OPENTEXT-NA-CA-1 - Open Text Corporation, CA
129.84.0.0/24 129.84.0.0/16
129.84.1.0/24 129.84.0.0/16
129.84.2.0/23 129.84.0.0/16
129.84.6.0/24 129.84.0.0/16
129.84.8.0/23 129.84.0.0/16
129.84.10.0/24 129.84.0.0/16
129.84.13.0/24 129.84.0.0/16
129.84.14.0/24 129.84.0.0/16
129.84.16.0/24 129.84.0.0/16
129.84.88.0/24 129.84.0.0/16
129.84.89.0/24 129.84.0.0/16
142.75.253.0/24 142.75.0.0/16
143.172.0.0/21 143.172.0.0/16
143.172.8.0/21 143.172.0.0/16
149.235.224.0/21 149.235.0.0/16
149.235.241.0/24 149.235.0.0/16
149.235.254.0/24 149.235.0.0/16
204.90.140.0/22 204.90.128.0/17
204.90.141.0/24 204.90.128.0/17
204.90.142.0/23 204.90.128.0/17
204.90.143.0/24 204.90.128.0/17
204.90.144.0/23 204.90.128.0/17
149.235.230.0/24 149.235.0.0/16
Prefixes added and withdrawn by this origin AS in the past 7 days.
- 149.235.230.0/24 Withdrawn
whois: 402609
IANA has recorded AS16751 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS16751\n
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
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# If you see inaccuracies in the results, please report at
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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ASNumber: 16751
ASName: OPENTEXT-NA-CA-1
ASHandle: AS16751
RegDate: 2000-06-05
Updated: 2021-06-30
Ref: https://rdap.arin.net/registry/autnum/16751
OrgName: Open Text Corporation
OrgId: OTC-68
Address: 275 Frank Tompa Drive
City: Waterloo
StateProv: ON
PostalCode: N2L 0A1
Country: CA
RegDate: 2018-12-17
Updated: 2025-11-12
Comment: https://www.opentext.com
Ref: https://rdap.arin.net/registry/entity/OTC-68
OrgAbuseHandle: DA16-ORG-ARIN
OrgAbuseName: Open Text Corporation
OrgAbusePhone: +1-519-888-7111
OrgAbuseEmail: ipetkov@opentext.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/DA16-ORG-ARIN
OrgAbuseHandle: EMAIL68-ARIN
OrgAbuseName: Email Deliverablity
OrgAbusePhone: +1-519-888-7111
OrgAbuseEmail: abuse@messagereach.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/EMAIL68-ARIN
OrgNOCHandle: DA16-ORG-ARIN
OrgNOCName: Open Text Corporation
OrgNOCPhone: +1-519-888-7111
OrgNOCEmail: ipetkov@opentext.com
OrgNOCRef: https://rdap.arin.net/registry/entity/DA16-ORG-ARIN
OrgTechHandle: DA16-ORG-ARIN
OrgTechName: Open Text Corporation
OrgTechPhone: +1-519-888-7111
OrgTechEmail: ipetkov@opentext.com
OrgTechRef: https://rdap.arin.net/registry/entity/DA16-ORG-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.
#