91 RPI-AS - Rensselaer Polytechnic Institute, US
Adjacency: 4 Upstream: 4 Downstream: 0
Upstream Adjacent AS list
AS174 COGENT-174 - Cogent Communications, LLC, US
AS3754 NYSERNET3-AS - NYSERNet, US
AS13536 TVC-AS1 - FirstLight Fiber, Inc., US
AS3356 LEVEL3 - Level 3 Parent, LLC, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 890 AS91 ORIGIN Originate: 330496 /13.67 Transit: 0 /0.00 RPI-AS - Rensselaer Polytechnic 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 % 30632 AS91 RPI-AS - Rensselaer Polytechnic Institute, US 12 0 0 12 0 0.00% Prefix AS Path Aggregation Suggestion 128.113.0.0/16 4608 7575 11537 3754 91 128.213.0.0/16 4608 7575 11537 3754 91 129.5.0.0/16 4777 2516 3356 91 91 91 91 129.161.0.0/16 4608 7575 11537 3754 91 146.8.0.0/16 4777 2497 174 91 91 91 91 192.12.91.0/24 4777 2516 3356 91 91 91 91 192.12.92.0/24 4777 2516 3356 91 91 91 91 204.76.222.0/24 4777 2516 1299 13536 91 204.76.223.0/24 4777 2497 174 91 91 91 91 204.76.224.0/22 4777 2497 174 91 91 91 91 204.76.228.0/23 4777 2497 174 91 91 91 91 204.145.205.0/24 4777 2497 174 91 91 91 91
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS91 2 More Specifics 12 Total Advertisements RPI-AS - Rensselaer Polytechnic Institute, US
204.76.222.0/24 204.76.222.0/23
204.76.223.0/24 204.76.222.0/23
whois: 402332
IANA has recorded AS91 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS91\n
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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ASNumber: 91
ASName: RPI-AS
ASHandle: AS91
RegDate: 1986-11-18
Updated: 2023-01-05
Ref: https://rdap.arin.net/registry/autnum/91
OrgName: Rensselaer Polytechnic Institute
OrgId: ITS-1-Z
Address: 110 8th Street
City: Troy
StateProv: NY
PostalCode: 12180-3590
Country: US
RegDate: 2022-11-23
Updated: 2025-06-10
Ref: https://rdap.arin.net/registry/entity/ITS-1-Z
OrgAbuseHandle: SECUR58-ARIN
OrgAbuseName: Security Team
OrgAbusePhone: +1-518-276-8181
OrgAbuseEmail: security@rpi.edu
OrgAbuseRef: https://rdap.arin.net/registry/entity/SECUR58-ARIN
OrgTechHandle: BOZEA-ARIN
OrgTechName: Bozeat, Alex
OrgTechPhone: +1-518-276-2204
OrgTechEmail: bozeaa2@rpi.edu
OrgTechRef: https://rdap.arin.net/registry/entity/BOZEA-ARIN
OrgTechHandle: GD341-ARIN
OrgTechName: Doig, Graham
OrgTechPhone: +1-518-276-2809
OrgTechEmail: doigg@rpi.edu
OrgTechRef: https://rdap.arin.net/registry/entity/GD341-ARIN
OrgTechHandle: CCM11-ARIN
OrgTechName: Morrissey, Colleen Carey
OrgTechPhone: +1-518-276-6594
OrgTechEmail: morric@rpi.edu
OrgTechRef: https://rdap.arin.net/registry/entity/CCM11-ARIN
RTechHandle: GD341-ARIN
RTechName: Doig, Graham
RTechPhone: +1-518-276-2809
RTechEmail: doigg@rpi.edu
RTechRef: https://rdap.arin.net/registry/entity/GD341-ARIN
RTechHandle: CCM11-ARIN
RTechName: Morrissey, Colleen Carey
RTechPhone: +1-518-276-6594
RTechEmail: morric@rpi.edu
RTechRef: https://rdap.arin.net/registry/entity/CCM11-ARIN
RAbuseHandle: SECUR58-ARIN
RAbuseName: Security Team
RAbusePhone: +1-518-276-8181
RAbuseEmail: security@rpi.edu
RAbuseRef: https://rdap.arin.net/registry/entity/SECUR58-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/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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