
12213 CNSQ-AS12213 - Centersquare, US
Adjacency: 33 Upstream: 4 Downstream: 29
Upstream Adjacent AS list
AS174 COGENT-174 - Cogent Communications, LLC, US
AS3356 LEVEL3 - Level 3 Parent, LLC, US
AS6461 ZAYO-6461 - Zayo Bandwidth, US
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US
Downstream Adjacent AS list
AS205826 CONTENTHOST-AS, GB
AS11775 CLOUGIX-11775 - Semina Tempus, LLC, US
AS197594 REDSTOR-AS, GB
AS10493 GCN-AS - Grand Central Networks Inc., US
AS15248 METASWITCH-AS1 - Metaswitch Networks Corp., US
AS18679 I4A-NETWORK - internet4associations, US
AS20201 CARYCO-TECH - Caryco Tech, US
AS18584 ANKURA-ASN - Ankura Consulting Group LLC, US
AS14132 BLUEMATRIX-AS-BLUEMATRIX-INC - Blue Matrix I LLC, US
AS21701 MERATIVE-AS21701 - Merative US L.P., US
AS23280 VENN - Venn Technology Corp, US
AS1379 AS1379 - SINCH INTERCONNECT LLC, US
AS13690 AMR - American Medical Response, Inc., US
AS26584 26584 - VERTAFORE, INC, US
AS29971 ICUC001 - iControl Systems USA LLC, US
AS30031 MIMECAST-US - Mimecast North America Inc, US
AS394880 VITALEDGE - e-Emphasys Technologies Inc, US
AS393548 ABRIA-AS-01 - AbriaCloud Technologies, US
AS3573 ACCENTURE - Accenture LLP, US
AS396252 CYBERANNEX - CYBERANNEX CORPORATION, US
AS398014 CNSQ-AS398014 - Centersquare, US
AS396333 CYWEST-COMMUNICATIONS - Cywest Communications, Inc., US
AS396104 KARMA-CORP-SVCS - Karma Automotive, LLC, US
AS399321 HELLO-DEFENDEDGE-01 - Defend Edge, US
AS40261 AS-MERCED1 - Merced Systems, Inc., US
AS40372 KAPLAN-LACROSSE - Schweser, US
AS401208 EPHRON-INC - Ephron, Inc., US
AS398172 SIRIUSXM-CV - Sirius XM Connected Vehicle Services Inc., US
AS26842 MFXCHANGE US INC - MFXCHANGE US, INC, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 4738 AS12213 ORG+TRN Originate: 41472 /16.66 Transit: 17408 /17.91 CNSQ-AS12213 - Centersquare, 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 % 4564 AS12213 CNSQ-AS12213 - Centersquare, US 36 18 7 25 11 30.56% Prefix AS Path Aggregation Suggestion 24.170.128.0/21 4777 2497 7018 12213 + Announce - aggregate of 24.170.128.0/22 (4777 2497 7018 12213) and 24.170.132.0/22 (4777 2497 7018 12213) 24.170.128.0/22 4777 2497 7018 12213 - Withdrawn - aggregated with 24.170.132.0/22 (4777 2497 7018 12213) 24.170.132.0/22 4777 2497 7018 12213 - Withdrawn - aggregated with 24.170.128.0/22 (4777 2497 7018 12213) 24.170.136.0/22 4777 2497 7018 12213 24.170.140.0/22 4777 2497 6461 12213 24.170.144.0/21 4777 2497 7018 12213 + Announce - aggregate of 24.170.144.0/22 (4777 2497 7018 12213) and 24.170.148.0/22 (4777 2497 7018 12213) 24.170.144.0/22 4777 2497 7018 12213 - Withdrawn - aggregated with 24.170.148.0/22 (4777 2497 7018 12213) 24.170.148.0/22 4777 2497 7018 12213 - Withdrawn - aggregated with 24.170.144.0/22 (4777 2497 7018 12213) 24.170.154.0/23 4777 2497 6461 12213 74.80.242.0/24 4777 2497 7018 12213 74.80.248.0/24 4777 2497 7018 12213 91.132.68.0/22 4777 2497 6461 12213 131.226.192.0/19 4777 2497 7018 12213 + Announce - aggregate of 131.226.192.0/20 (4777 2497 7018 12213) and 131.226.208.0/20 (4777 2497 7018 12213) 131.226.192.0/21 4777 2497 7018 12213 - Withdrawn - aggregated with 131.226.200.0/21 (4777 2497 7018 12213) 131.226.200.0/21 4777 2497 7018 12213 - Withdrawn - aggregated with 131.226.192.0/21 (4777 2497 7018 12213) 131.226.208.0/21 4777 2497 7018 12213 - Withdrawn - aggregated with 131.226.216.0/21 (4777 2497 7018 12213) 131.226.216.0/21 4777 2497 7018 12213 - Withdrawn - aggregated with 131.226.208.0/21 (4777 2497 7018 12213) 131.226.224.0/22 4777 2497 7018 12213 131.226.232.0/21 4777 2497 7018 12213 131.226.240.0/20 4777 2497 7018 12213 + Announce - aggregate of 131.226.240.0/21 (4777 2497 7018 12213) and 131.226.248.0/21 (4777 2497 7018 12213) 131.226.240.0/22 4777 2497 7018 12213 - Withdrawn - aggregated with 131.226.244.0/22 (4777 2497 7018 12213) 131.226.244.0/22 4777 2497 7018 12213 - Withdrawn - aggregated with 131.226.240.0/22 (4777 2497 7018 12213) 131.226.248.0/22 4777 2497 7018 12213 - Withdrawn - aggregated with 131.226.252.0/22 (4777 2497 7018 12213) 131.226.252.0/22 4777 2497 7018 12213 - Withdrawn - aggregated with 131.226.248.0/22 (4777 2497 7018 12213) 149.137.192.0/20 4777 2497 7018 12213 + Announce - aggregate of 149.137.192.0/21 (4777 2497 7018 12213) and 149.137.200.0/21 (4777 2497 7018 12213) 149.137.192.0/21 4777 2497 7018 12213 - Withdrawn - aggregated with 149.137.200.0/21 (4777 2497 7018 12213) 149.137.200.0/21 4777 2497 7018 12213 - Withdrawn - aggregated with 149.137.192.0/21 (4777 2497 7018 12213) 149.137.216.0/22 4777 2497 6461 12213 149.137.220.0/22 4777 2497 7018 12213 149.137.224.0/21 4777 2497 6461 12213 + Announce - aggregate of 149.137.224.0/22 (4777 2497 6461 12213) and 149.137.228.0/22 (4777 2497 6461 12213) 149.137.224.0/22 4777 2497 6461 12213 - Withdrawn - aggregated with 149.137.228.0/22 (4777 2497 6461 12213) 149.137.228.0/22 4777 2497 6461 12213 - Withdrawn - aggregated with 149.137.224.0/22 (4777 2497 6461 12213) 149.137.232.0/21 4777 2497 7018 12213 + Announce - aggregate of 149.137.232.0/22 (4777 2497 7018 12213) and 149.137.236.0/22 (4777 2497 7018 12213) 149.137.232.0/22 4777 2497 7018 12213 - Withdrawn - aggregated with 149.137.236.0/22 (4777 2497 7018 12213) 149.137.236.0/22 4777 2497 7018 12213 - Withdrawn - aggregated with 149.137.232.0/22 (4777 2497 7018 12213) 149.137.240.0/22 4777 2497 3356 12213 149.137.244.0/22 4777 2497 7018 12213 149.137.248.0/22 4777 2497 6461 12213 149.137.252.0/22 4777 2497 7018 12213 151.242.102.0/24 4777 2497 7018 12213 185.143.78.0/24 4777 2497 174 12213 193.93.84.0/22 4777 2497 6461 12213 208.67.48.0/21 4777 2497 7018 12213
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS12213 33 More Specifics 36 Total Advertisements CNSQ-AS12213 - Centersquare, US
24.170.128.0/22 24.170.128.0/18
24.170.132.0/22 24.170.128.0/18
24.170.136.0/22 24.170.128.0/18
24.170.140.0/22 24.170.128.0/18
24.170.144.0/22 24.170.128.0/18
24.170.148.0/22 24.170.128.0/18
24.170.154.0/23 24.170.128.0/18
74.80.242.0/24 74.80.242.0/23
74.80.248.0/24 74.80.248.0/22
131.226.192.0/21 131.226.192.0/18
131.226.200.0/21 131.226.192.0/18
131.226.208.0/21 131.226.192.0/18
131.226.216.0/21 131.226.192.0/18
131.226.224.0/22 131.226.192.0/18
131.226.232.0/21 131.226.192.0/18
131.226.240.0/22 131.226.192.0/18
131.226.244.0/22 131.226.192.0/18
131.226.248.0/22 131.226.192.0/18
131.226.252.0/22 131.226.192.0/18
149.137.192.0/21 149.137.192.0/20
149.137.200.0/21 149.137.192.0/20
149.137.216.0/22 149.137.216.0/21
149.137.220.0/22 149.137.216.0/21
149.137.224.0/22 149.137.224.0/19
149.137.228.0/22 149.137.224.0/19
149.137.232.0/22 149.137.224.0/19
149.137.236.0/22 149.137.224.0/19
149.137.240.0/22 149.137.224.0/19
149.137.244.0/22 149.137.224.0/19
149.137.248.0/22 149.137.224.0/19
149.137.252.0/22 149.137.224.0/19
151.242.102.0/24 151.242.0.0/17
185.143.78.0/24 185.143.76.0/22
whois: 402332
IANA has recorded AS12213 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS12213\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: 12213
ASName: CNSQ-AS12213
ASHandle: AS12213
RegDate: 2017-10-20
Updated: 2025-07-22
Ref: https://rdap.arin.net/registry/autnum/12213
OrgName: Centersquare
OrgId: PIL-188
Address: 3100 Olympus Blvd, Suite 510
City: Copppell
StateProv: TX
PostalCode: 75019
Country: US
RegDate: 2024-06-19
Updated: 2025-08-25
Comment: https://centersquaredc.com/
Comment: Customer Service 1-800-884-3082
Ref: https://rdap.arin.net/registry/entity/PIL-188
OrgTechHandle: DELGA119-ARIN
OrgTechName: Delgado, Josue
OrgTechPhone: +1-305-537-9500
OrgTechEmail: josue.delgado@csquare.com
OrgTechRef: https://rdap.arin.net/registry/entity/DELGA119-ARIN
OrgDNSHandle: NOC33083-ARIN
OrgDNSName: Network Operations Center
OrgDNSPhone: +1-855-699-8372
OrgDNSEmail: networkoperations@csquare.com
OrgDNSRef: https://rdap.arin.net/registry/entity/NOC33083-ARIN
OrgRoutingHandle: MAEST10-ARIN
OrgRoutingName: Maestas, Ernie
OrgRoutingPhone: +1-855-699-8372
OrgRoutingEmail: ernie.maestas@csquare.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/MAEST10-ARIN
OrgAbuseHandle: MOHAM114-ARIN
OrgAbuseName: Mohammad, Asifuddin
OrgAbusePhone: +1-785-218-6519
OrgAbuseEmail: asifuddin.mohammad@centersquaredc.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/MOHAM114-ARIN
OrgAbuseHandle: DELGA119-ARIN
OrgAbuseName: Delgado, Josue
OrgAbusePhone: +1-305-537-9500
OrgAbuseEmail: josue.delgado@csquare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/DELGA119-ARIN
OrgDNSHandle: DELGA119-ARIN
OrgDNSName: Delgado, Josue
OrgDNSPhone: +1-305-537-9500
OrgDNSEmail: josue.delgado@csquare.com
OrgDNSRef: https://rdap.arin.net/registry/entity/DELGA119-ARIN
OrgAbuseHandle: ABUSE7809-ARIN
OrgAbuseName: Abuse Contact
OrgAbusePhone: +1-855-699-8372
OrgAbuseEmail: networkabuse@csquare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE7809-ARIN
OrgTechHandle: SEAVE20-ARIN
OrgTechName: Seaver, Brandon
OrgTechPhone: +1-423-444-5456
OrgTechEmail: brandon.seaver@csquare.com
OrgTechRef: https://rdap.arin.net/registry/entity/SEAVE20-ARIN
OrgRoutingHandle: AMBLE2-ARIN
OrgRoutingName: Ambler, Reza
OrgRoutingPhone: +1-858-757-7498
OrgRoutingEmail: reza.ambler@csquare.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/AMBLE2-ARIN
OrgAbuseHandle: SEAVE20-ARIN
OrgAbuseName: Seaver, Brandon
OrgAbusePhone: +1-423-444-5456
OrgAbuseEmail: brandon.seaver@csquare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/SEAVE20-ARIN
OrgDNSHandle: SEAVE20-ARIN
OrgDNSName: Seaver, Brandon
OrgDNSPhone: +1-423-444-5456
OrgDNSEmail: brandon.seaver@csquare.com
OrgDNSRef: https://rdap.arin.net/registry/entity/SEAVE20-ARIN
OrgNOCHandle: NOC33083-ARIN
OrgNOCName: Network Operations Center
OrgNOCPhone: +1-855-699-8372
OrgNOCEmail: networkoperations@csquare.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC33083-ARIN
OrgRoutingHandle: DELGA119-ARIN
OrgRoutingName: Delgado, Josue
OrgRoutingPhone: +1-305-537-9500
OrgRoutingEmail: josue.delgado@csquare.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/DELGA119-ARIN
OrgTechHandle: AMBLE2-ARIN
OrgTechName: Ambler, Reza
OrgTechPhone: +1-858-757-7498
OrgTechEmail: reza.ambler@csquare.com
OrgTechRef: https://rdap.arin.net/registry/entity/AMBLE2-ARIN
OrgAbuseHandle: AMBLE2-ARIN
OrgAbuseName: Ambler, Reza
OrgAbusePhone: +1-858-757-7498
OrgAbuseEmail: reza.ambler@csquare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AMBLE2-ARIN
OrgDNSHandle: MAEST10-ARIN
OrgDNSName: Maestas, Ernie
OrgDNSPhone: +1-855-699-8372
OrgDNSEmail: ernie.maestas@csquare.com
OrgDNSRef: https://rdap.arin.net/registry/entity/MAEST10-ARIN
OrgRoutingHandle: MOHAM114-ARIN
OrgRoutingName: Mohammad, Asifuddin
OrgRoutingPhone: +1-785-218-6519
OrgRoutingEmail: asifuddin.mohammad@centersquaredc.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/MOHAM114-ARIN
OrgRoutingHandle: SEAVE20-ARIN
OrgRoutingName: Seaver, Brandon
OrgRoutingPhone: +1-423-444-5456
OrgRoutingEmail: brandon.seaver@csquare.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/SEAVE20-ARIN
OrgTechHandle: MOHAM114-ARIN
OrgTechName: Mohammad, Asifuddin
OrgTechPhone: +1-785-218-6519
OrgTechEmail: asifuddin.mohammad@centersquaredc.com
OrgTechRef: https://rdap.arin.net/registry/entity/MOHAM114-ARIN
OrgTechHandle: MAEST10-ARIN
OrgTechName: Maestas, Ernie
OrgTechPhone: +1-855-699-8372
OrgTechEmail: ernie.maestas@csquare.com
OrgTechRef: https://rdap.arin.net/registry/entity/MAEST10-ARIN
OrgAbuseHandle: MAEST10-ARIN
OrgAbuseName: Maestas, Ernie
OrgAbusePhone: +1-855-699-8372
OrgAbuseEmail: ernie.maestas@csquare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/MAEST10-ARIN
OrgDNSHandle: AMBLE2-ARIN
OrgDNSName: Ambler, Reza
OrgDNSPhone: +1-858-757-7498
OrgDNSEmail: reza.ambler@csquare.com
OrgDNSRef: https://rdap.arin.net/registry/entity/AMBLE2-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.
#