600 OARNET-AS, US
Adjacency: 58 Upstream: 3 Downstream: 55
Upstream Adjacent AS list
AS6939 HURRICANE, US
AS3356 LEVEL3, US
AS7018 ATT-INTERNET4, US
Downstream Adjacent AS list
AS11446 LAKELAND-AS, US
AS11050 KENT-STATE, US
AS14734 NEONET-HEARTLAND, US
AS14200 MARSHALLUNIV, US
AS13501 OARNET-AS-2, US
AS16426 CITYOFCOLUMBUSOHIO, US
AS159 OSUNET-AS, US
AS12247 META-SOLUTIONS, US
AS17135 OHIOU, US
AS20126 UC-DOM, US
AS19902 NET-STATE-OHIO, US
AS2025 UTOLEDO, US
AS22757 CITY-OF-AKRON-OHIO, US
AS25822 TU-ASN-01, US
AS22968 MIAMI-UNIVERSITY, US
AS26818 COL-PUB-SCHOOLS-OH, US
AS26247 HCCA, US
AS22320 MVECA-AS, US
AS26898 LNOCA-ORG, US
AS26923 OPLIN, US
AS26894 NOACSC-AS, US
AS30290 WOCO, US
AS29941 TCCSA, US
AS29709 NEONET-FALLS, US
AS20238 NEONET-CONCORD, US
AS19616 ACCESS-OHIO, US
AS30499 YSU-AS, US
AS30712 MDECA, US
AS31777 SPARCC-AS, US
AS32178 SCC-ASN-31004, US
AS32234 UD-ACA-AS, US
AS32513 BATTELLE-MEMORIAL-INSTITUTE, US
AS33254 OMERESA, US
AS33167 SWOCA-TWASSIGNED, US
AS33030 COLLEGE-OF-WOOSTER, US
AS32818 CSUOHIO-AS, US
AS36794 SCOCA, US
AS394399 LACA-ASN, US
AS40732 TOLEDO-PUBLIC-SCHOOLS, US
AS40553 CUYAHOGA-COUNTY, US
AS40252 CLEVELAND-MUNICIPAL-SCHOOL-DISTRICT, US
AS396381 GENESISHCS, US
AS394061 FRANKLIN-COUNTY-AS, US
AS36831 XAVIER-UNIVERSITY, US
AS36390 TRI-C-AS, US
AS36368 OBERLIN-COLLEGE, US
AS32666 CWRU-AS-1, US
AS31921 MALONE-ASN, US
AS30681 JCU-ASN, US
AS53568 FRANKLIN-UNIVERSITY, US
AS62724 NWOCA-AS, US
AS7925 WVNET, US
AS55194 BGSU, US
AS46491 MEC-ASN, US
AS30298 COG-SEOVEC-ISP, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 456 AS600 ORG+TRN Originate: 964864 /12.12 Transit: 962560 /12.12 OARNET-AS, 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 % 1811 AS600 OARNET-AS, US 71 33 1 39 32 45.07% Prefix AS Path Aggregation Suggestion 130.108.0.0/16 6939 600 131.187.0.0/16 6939 600 131.238.28.0/24 6939 600 136.227.0.0/18 6939 600 136.227.60.0/24 6939 600 - Withdrawn - matching aggregate 136.227.0.0/18 6939 600 136.227.128.0/21 6939 600 140.220.0.0/16 6939 600 140.228.0.0/20 6939 600 143.246.0.0/17 6939 600 144.50.0.0/16 6939 600 146.85.0.0/18 6939 600 + Announce - aggregate of 146.85.0.0/19 (6939 600) and 146.85.32.0/19 (6939 600) 146.85.0.0/19 6939 600 - Withdrawn - aggregated with 146.85.32.0/19 (6939 600) 146.85.32.0/19 6939 600 - Withdrawn - aggregated with 146.85.0.0/19 (6939 600) 146.85.160.0/19 6939 600 146.85.224.0/19 6939 600 156.63.208.0/24 6939 600 157.134.0.0/16 6939 600 163.11.0.0/16 6939 600 192.68.223.0/24 6939 600 192.88.192.0/22 6939 600 192.88.193.0/24 6939 600 - Withdrawn - matching aggregate 192.88.192.0/22 6939 600 192.88.195.0/24 6939 600 - Withdrawn - matching aggregate 192.88.192.0/22 6939 600 192.131.123.0/24 6939 600 192.148.235.0/24 6939 600 192.148.236.0/22 6939 600 192.148.237.0/24 6939 600 - Withdrawn - matching aggregate 192.148.236.0/22 6939 600 192.148.240.0/21 6939 600 192.148.241.0/24 6939 600 - Withdrawn - matching aggregate 192.148.240.0/21 6939 600 192.148.248.0/22 6939 600 192.148.251.0/24 6939 600 - Withdrawn - matching aggregate 192.148.248.0/22 6939 600 192.150.115.0/24 6939 600 192.153.26.0/23 6939 600 192.153.28.0/22 6939 600 192.153.31.0/24 6939 600 - Withdrawn - matching aggregate 192.153.28.0/22 6939 600 192.153.32.0/24 6939 600 192.153.40.0/23 6939 600 192.153.40.0/24 6939 600 - Withdrawn - matching aggregate 192.153.40.0/23 6939 600 192.232.16.0/20 6939 600 192.232.19.0/24 6939 600 - Withdrawn - matching aggregate 192.232.16.0/20 6939 600 198.30.0.0/16 6939 600 199.18.0.0/16 6939 600 199.120.181.0/24 6939 600 199.218.0.0/16 6939 600 199.218.111.0/24 6939 600 - Withdrawn - matching aggregate 199.218.0.0/16 6939 600 199.218.112.0/24 6939 600 - Withdrawn - matching aggregate 199.218.0.0/16 6939 600 199.218.126.0/23 6939 600 - Withdrawn - matching aggregate 199.218.0.0/16 6939 600 204.57.8.0/21 6939 600 204.128.217.0/24 6939 600 205.133.0.0/16 6939 600 205.133.85.0/24 6939 3356 600 205.133.232.0/24 6939 600 - Withdrawn - matching aggregate 205.133.0.0/16 6939 600 206.21.0.0/16 6939 600 206.21.89.0/24 6939 600 - Withdrawn - matching aggregate 206.21.0.0/16 6939 600 206.21.106.0/24 6939 600 - Withdrawn - matching aggregate 206.21.0.0/16 6939 600 206.244.0.0/16 6939 600 206.244.89.0/24 6939 600 - Withdrawn - matching aggregate 206.244.0.0/16 6939 600 208.108.0.0/16 6939 600 208.108.5.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.7.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.44.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.48.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.50.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.52.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.54.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.58.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.60.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.70.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.71.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.79.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.241.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.244.0/22 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600 208.108.248.0/24 6939 600 - Withdrawn - matching aggregate 208.108.0.0/16 6939 600
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS600 44 More Specifics 82 Total Advertisements OARNET-AS, US
129.1.160.0/23 129.1.0.0/16
129.1.162.0/23 129.1.0.0/16
131.238.28.0/24 131.238.0.0/16
156.63.208.0/24 156.63.0.0/16
192.88.195.0/24 192.88.192.0/22
192.148.237.0/24 192.148.236.0/22
192.148.241.0/24 192.148.240.0/21
192.148.251.0/24 192.148.248.0/22
192.153.31.0/24 192.153.28.0/22
192.153.32.0/24 192.153.32.0/21
192.232.19.0/24 192.232.16.0/20
199.18.141.0/24 199.18.0.0/16
199.18.241.0/24 199.18.0.0/16
199.218.111.0/24 199.218.0.0/16
199.218.112.0/24 199.218.0.0/16
199.218.126.0/23 199.218.0.0/16
205.133.85.0/24 205.133.0.0/16
205.133.232.0/24 205.133.0.0/16
206.21.89.0/24 206.21.0.0/16
206.21.106.0/24 206.21.0.0/16
206.244.89.0/24 206.244.0.0/16
208.108.5.0/24 208.108.0.0/16
208.108.7.0/24 208.108.0.0/16
208.108.11.0/24 208.108.0.0/16
208.108.44.0/24 208.108.0.0/16
208.108.48.0/24 208.108.0.0/16
208.108.50.0/24 208.108.0.0/16
208.108.52.0/24 208.108.0.0/16
208.108.54.0/24 208.108.0.0/16
208.108.58.0/24 208.108.0.0/16
208.108.60.0/24 208.108.0.0/16
208.108.70.0/24 208.108.0.0/16
208.108.71.0/24 208.108.0.0/16
208.108.77.0/24 208.108.0.0/16
208.108.79.0/24 208.108.0.0/16
208.108.128.0/21 208.108.0.0/16
208.108.168.0/21 208.108.0.0/16
208.108.176.0/21 208.108.0.0/16
208.108.184.0/21 208.108.0.0/16
208.108.230.0/24 208.108.0.0/16
208.108.231.0/24 208.108.0.0/16
208.108.241.0/24 208.108.0.0/16
208.108.244.0/22 208.108.0.0/16
208.108.248.0/24 208.108.0.0/16
192.88.193.0/24 192.88.192.0/22
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 129.1.160.0/23 Announced
+ 129.1.162.0/23 Announced
+ 136.227.0.0/16 Announced
+ 149.143.192.0/18 Announced
- 136.227.0.0/17 Withdrawn
- 136.227.128.0/21 Withdrawn
- 136.227.136.0/22 Withdrawn
- 192.88.193.0/24 Withdrawn
whois: 402603
IANA has recorded AS600 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS600\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/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
ASNumber: 600
ASName: OARNET-AS
ASHandle: AS600
RegDate: 1990-03-11
Updated: 2019-11-06
Ref: https://rdap.arin.net/registry/autnum/600
OrgName: OARnet
OrgId: OAR-Z
Address: 1224 Kinnear Road
Address: Columbus
City: Columbus
StateProv: OH
PostalCode: 43212-1198
Country: US
RegDate: 2010-01-04
Updated: 2020-03-27
Ref: https://rdap.arin.net/registry/entity/OAR-Z
OrgNOCHandle: NOC2069-ARIN
OrgNOCName: Network Operations Center
OrgNOCPhone: +1-800-627-6420
OrgNOCEmail: support@oar.net
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC2069-ARIN
OrgTechHandle: NOC2069-ARIN
OrgTechName: Network Operations Center
OrgTechPhone: +1-800-627-6420
OrgTechEmail: support@oar.net
OrgTechRef: https://rdap.arin.net/registry/entity/NOC2069-ARIN
OrgRoutingHandle: NOC2069-ARIN
OrgRoutingName: Network Operations Center
OrgRoutingPhone: +1-800-627-6420
OrgRoutingEmail: support@oar.net
OrgRoutingRef: https://rdap.arin.net/registry/entity/NOC2069-ARIN
OrgDNSHandle: NOC2069-ARIN
OrgDNSName: Network Operations Center
OrgDNSPhone: +1-800-627-6420
OrgDNSEmail: support@oar.net
OrgDNSRef: https://rdap.arin.net/registry/entity/NOC2069-ARIN
OrgAbuseHandle: NOC2069-ARIN
OrgAbuseName: Network Operations Center
OrgAbusePhone: +1-800-627-6420
OrgAbuseEmail: support@oar.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/NOC2069-ARIN
RAbuseHandle: NOC2069-ARIN
RAbuseName: Network Operations Center
RAbusePhone: +1-800-627-6420
RAbuseEmail: support@oar.net
RAbuseRef: https://rdap.arin.net/registry/entity/NOC2069-ARIN
RNOCHandle: NOC2069-ARIN
RNOCName: Network Operations Center
RNOCPhone: +1-800-627-6420
RNOCEmail: support@oar.net
RNOCRef: https://rdap.arin.net/registry/entity/NOC2069-ARIN
RTechHandle: NOC2069-ARIN
RTechName: Network Operations Center
RTechPhone: +1-800-627-6420
RTechEmail: support@oar.net
RTechRef: https://rdap.arin.net/registry/entity/NOC2069-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.
#