11160 COSTAR-SANDIEGO - COSTAR GROUP Inc., US
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS174 COGENT-174 - Cogent Communications, LLC, US
AS701 UUNET - Verizon Business, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 44206 AS11160 ORIGIN Originate: 768 /22.42 Transit: 0 /0.00 COSTAR-SANDIEGO - COSTAR GROUP 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 % 31946 AS11160 COSTAR-SANDIEGO - COSTAR GROUP Inc., US 3 0 0 3 0 0.00% Prefix AS Path Aggregation Suggestion 38.64.74.0/24 4777 2516 174 11160 65.200.12.0/24 4777 2516 701 11160 204.253.48.0/24 4777 2516 701 11160
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS11160 3 More Specifics 3 Total Advertisements COSTAR-SANDIEGO - COSTAR GROUP Inc., US
38.64.74.0/24 38.0.0.0/8
65.200.12.0/24 65.192.0.0/11
204.253.48.0/24 204.252.0.0/14
whois: 402332
IANA has recorded AS11160 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS11160\n
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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ASNumber: 11160
ASName: COSTAR-SANDIEGO
ASHandle: AS11160
RegDate: 1998-05-01
Updated: 2024-08-01
Ref: https://rdap.arin.net/registry/autnum/11160
OrgName: COSTAR GROUP Inc.
OrgId: COSTAR-2
Address: 1331 L St N.W.
City: Washington
StateProv: DC
PostalCode: 20005-4293
Country: US
RegDate: 2000-01-06
Updated: 2024-08-12
Ref: https://rdap.arin.net/registry/entity/COSTAR-2
OrgAbuseHandle: CNT13-ARIN
OrgAbuseName: Costar Network Team
OrgAbusePhone: +1-202-336-6960
OrgAbuseEmail: costarnetworkteam@costar.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/CNT13-ARIN
OrgTechHandle: CNT13-ARIN
OrgTechName: Costar Network Team
OrgTechPhone: +1-202-336-6960
OrgTechEmail: costarnetworkteam@costar.com
OrgTechRef: https://rdap.arin.net/registry/entity/CNT13-ARIN
OrgNOCHandle: CNT13-ARIN
OrgNOCName: Costar Network Team
OrgNOCPhone: +1-202-336-6960
OrgNOCEmail: costarnetworkteam@costar.com
OrgNOCRef: https://rdap.arin.net/registry/entity/CNT13-ARIN
OrgTechHandle: STONG5-ARIN
OrgTechName: Stong, Ian
OrgTechPhone: +1-202-336-6960
OrgTechEmail: istong@costar.com
OrgTechRef: https://rdap.arin.net/registry/entity/STONG5-ARIN
OrgRoutingHandle: CNT13-ARIN
OrgRoutingName: Costar Network Team
OrgRoutingPhone: +1-202-336-6960
OrgRoutingEmail: costarnetworkteam@costar.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/CNT13-ARIN
OrgDNSHandle: CNT13-ARIN
OrgDNSName: Costar Network Team
OrgDNSPhone: +1-202-336-6960
OrgDNSEmail: costarnetworkteam@costar.com
OrgDNSRef: https://rdap.arin.net/registry/entity/CNT13-ARIN
OrgAbuseHandle: STONG5-ARIN
OrgAbuseName: Stong, Ian
OrgAbusePhone: +1-202-336-6960
OrgAbuseEmail: istong@costar.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/STONG5-ARIN
RTechHandle: GPG-ARIN
RTechName: Guidi, Gino Pietro
RTechPhone: +1-858-678-4155
RTechEmail: gguidi@costar.com
RTechRef: https://rdap.arin.net/registry/entity/GPG-ARIN
RTechHandle: MSM74-ARIN
RTechName: Mascorro, Mathew Santos
RTechPhone: +1-858-678-4167
RTechEmail: mmascorro@costar.com
RTechRef: https://rdap.arin.net/registry/entity/MSM74-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.
#