
2003 EPRI-PA - Electric Power Research Institute, US
Adjacency: 4 Upstream: 4 Downstream: 0
Upstream Adjacent AS list
AS20115 CHARTER-20115 - Charter Communications LLC, US
AS15830 Equinix - Equinix (EMEA) Acquisition Enterprises B.V., NL
AS3356 LEVEL3 - Level 3 Parent, LLC, US
AS11351 TWC-11351-NORTHEAST - Charter Communications Inc, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 5832 AS2003 ORIGIN Originate: 26880 /17.29 Transit: 0 /0.00 EPRI-PA - Electric Power Research Institute, 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 % 5671 AS2003 EPRI-PA - Electric Power Research Institute, 28 14 6 20 8 28.57% Prefix AS Path Aggregation Suggestion 144.58.0.0/22 4608 7575 1299 15830 2003 + Announce - aggregate of 144.58.0.0/23 (4608 7575 1299 15830 2003) and 144.58.2.0/23 (4608 7575 1299 15830 2003) 144.58.0.0/24 4608 7575 1299 15830 2003 - Withdrawn - aggregated with 144.58.1.0/24 (4608 7575 1299 15830 2003) 144.58.1.0/24 4608 7575 1299 15830 2003 - Withdrawn - aggregated with 144.58.0.0/24 (4608 7575 1299 15830 2003) 144.58.2.0/24 4608 7575 1299 15830 2003 - Withdrawn - aggregated with 144.58.3.0/24 (4608 7575 1299 15830 2003) 144.58.3.0/24 4608 7575 1299 15830 2003 - Withdrawn - aggregated with 144.58.2.0/24 (4608 7575 1299 15830 2003) 144.58.4.0/23 4608 7575 1299 15830 2003 + Announce - aggregate of 144.58.4.0/24 (4608 7575 1299 15830 2003) and 144.58.5.0/24 (4608 7575 1299 15830 2003) 144.58.4.0/24 4608 7575 1299 15830 2003 - Withdrawn - aggregated with 144.58.5.0/24 (4608 7575 1299 15830 2003) 144.58.5.0/24 4608 7575 1299 15830 2003 - Withdrawn - aggregated with 144.58.4.0/24 (4608 7575 1299 15830 2003) 144.58.6.0/24 4608 7575 1299 15830 2003 144.58.40.0/24 4777 2497 3356 2003 2003 2003 2003 2003 2003 2003 144.58.42.0/23 4777 2497 3356 2003 + Announce - aggregate of 144.58.42.0/24 (4777 2497 3356 2003) and 144.58.43.0/24 (4777 2497 3356 2003) 144.58.42.0/24 4777 2497 3356 2003 - Withdrawn - aggregated with 144.58.43.0/24 (4777 2497 3356 2003) 144.58.43.0/24 4777 2497 3356 2003 - Withdrawn - aggregated with 144.58.42.0/24 (4777 2497 3356 2003) 144.58.44.0/23 4777 2516 3356 2003 + Announce - aggregate of 144.58.44.0/24 (4777 2516 3356 2003) and 144.58.45.0/24 (4777 2516 3356 2003) 144.58.44.0/24 4777 2516 3356 2003 - Withdrawn - aggregated with 144.58.45.0/24 (4777 2516 3356 2003) 144.58.45.0/24 4777 2516 3356 2003 - Withdrawn - aggregated with 144.58.44.0/24 (4777 2516 3356 2003) 144.58.46.0/24 4777 2516 7843 11351 2003 144.58.48.0/23 4777 2516 20115 2003 + Announce - aggregate of 144.58.48.0/24 (4777 2516 20115 2003) and 144.58.49.0/24 (4777 2516 20115 2003) 144.58.48.0/24 4777 2516 20115 2003 - Withdrawn - aggregated with 144.58.49.0/24 (4777 2516 20115 2003) 144.58.49.0/24 4777 2516 20115 2003 - Withdrawn - aggregated with 144.58.48.0/24 (4777 2516 20115 2003) 144.58.50.0/23 4777 2516 3356 2003 + Announce - aggregate of 144.58.50.0/24 (4777 2516 3356 2003) and 144.58.51.0/24 (4777 2516 3356 2003) 144.58.50.0/24 4777 2516 3356 2003 - Withdrawn - aggregated with 144.58.51.0/24 (4777 2516 3356 2003) 144.58.51.0/24 4777 2516 3356 2003 - Withdrawn - aggregated with 144.58.50.0/24 (4777 2516 3356 2003) 144.58.96.0/22 4777 2516 20115 2003 144.58.112.0/20 4777 2497 3356 2003 2003 2003 2003 2003 2003 2003 144.58.129.0/24 4777 2497 3356 2003 2003 2003 2003 2003 2003 2003 144.58.140.0/24 4777 2516 20115 2003 144.58.144.0/24 4777 2497 3356 2003 2003 2003 2003 2003 2003 2003 144.58.176.0/20 4777 2497 3356 2003 144.58.208.0/20 4777 2497 3356 2003 2003 2003 2003 2003 2003 2003 144.58.224.0/20 4777 2497 3356 2003 2003 2003 2003 2003 2003 2003 144.58.240.0/21 4777 2516 20115 2003 144.58.241.0/24 4777 2516 3356 2003 144.58.248.0/21 4777 2497 3356 2003
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS2003 28 More Specifics 28 Total Advertisements EPRI-PA - Electric Power Research Institute, US
144.58.0.0/24 144.58.0.0/16
144.58.1.0/24 144.58.0.0/16
144.58.2.0/24 144.58.0.0/16
144.58.3.0/24 144.58.0.0/16
144.58.4.0/24 144.58.0.0/16
144.58.5.0/24 144.58.0.0/16
144.58.6.0/24 144.58.0.0/16
144.58.40.0/24 144.58.0.0/16
144.58.42.0/24 144.58.0.0/16
144.58.43.0/24 144.58.0.0/16
144.58.44.0/24 144.58.0.0/16
144.58.45.0/24 144.58.0.0/16
144.58.46.0/24 144.58.0.0/16
144.58.48.0/24 144.58.0.0/16
144.58.49.0/24 144.58.0.0/16
144.58.50.0/24 144.58.0.0/16
144.58.51.0/24 144.58.0.0/16
144.58.96.0/22 144.58.0.0/16
144.58.112.0/20 144.58.0.0/16
144.58.129.0/24 144.58.0.0/16
144.58.140.0/24 144.58.0.0/16
144.58.144.0/24 144.58.0.0/16
144.58.176.0/20 144.58.0.0/16
144.58.208.0/20 144.58.0.0/16
144.58.224.0/20 144.58.0.0/16
144.58.240.0/21 144.58.0.0/16
144.58.241.0/24 144.58.0.0/16
144.58.248.0/21 144.58.0.0/16
whois: 402603
IANA has recorded AS2003 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS2003\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: 2003
ASName: EPRI-PA
ASHandle: AS2003
RegDate: 1992-09-30
Updated: 2018-04-27
Ref: https://rdap.arin.net/registry/autnum/2003
OrgName: Electric Power Research Institute
OrgId: EPRI
Address: 3420 Hillview Ave.
City: Palo Alto
StateProv: CA
PostalCode: 94304
Country: US
RegDate: 1990-11-13
Updated: 2024-08-30
Ref: https://rdap.arin.net/registry/entity/EPRI
OrgNOCHandle: LITTL261-ARIN
OrgNOCName: Little, Ryan
OrgNOCPhone: +1-704-595-2462
OrgNOCEmail: domainalerts@epri.com
OrgNOCRef: https://rdap.arin.net/registry/entity/LITTL261-ARIN
OrgTechHandle: LITTL261-ARIN
OrgTechName: Little, Ryan
OrgTechPhone: +1-704-595-2462
OrgTechEmail: domainalerts@epri.com
OrgTechRef: https://rdap.arin.net/registry/entity/LITTL261-ARIN
OrgAbuseHandle: LITTL261-ARIN
OrgAbuseName: Little, Ryan
OrgAbusePhone: +1-704-595-2462
OrgAbuseEmail: domainalerts@epri.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/LITTL261-ARIN
OrgRoutingHandle: LITTL261-ARIN
OrgRoutingName: Little, Ryan
OrgRoutingPhone: +1-704-595-2462
OrgRoutingEmail: domainalerts@epri.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/LITTL261-ARIN
OrgDNSHandle: LITTL261-ARIN
OrgDNSName: Little, Ryan
OrgDNSPhone: +1-704-595-2462
OrgDNSEmail: domainalerts@epri.com
OrgDNSRef: https://rdap.arin.net/registry/entity/LITTL261-ARIN
RAbuseHandle: WEBST127-ARIN
RAbuseName: Webster, Jonathan
RAbusePhone: +1-704-595-2276
RAbuseEmail: jwebster@epri.com
RAbuseRef: https://rdap.arin.net/registry/entity/WEBST127-ARIN
RNOCHandle: WEBST127-ARIN
RNOCName: Webster, Jonathan
RNOCPhone: +1-704-595-2276
RNOCEmail: jwebster@epri.com
RNOCRef: https://rdap.arin.net/registry/entity/WEBST127-ARIN
RTechHandle: WEBST127-ARIN
RTechName: Webster, Jonathan
RTechPhone: +1-704-595-2276
RTechEmail: jwebster@epri.com
RTechRef: https://rdap.arin.net/registry/entity/WEBST127-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.
#