AS20 - UR - University of Rochester, US

United States
AS Number
AS20
AS Name
UR
Org Name
University of Rochester
Country / Region
United States
Registry

arin

RegDate

2009-03-30

Updated

2026-06-10

AS20 Looking Glass
IPv4Prefixes

3

IPv6Prefixes

1

IPv4 NUMs

66,048

IPv6 NUMs(/64)

16,777,216

CIDR Description IP Num
128.151.0.0/16
University of Rochester 65536
192.5.53.0/24
University of Rochester 256
199.89.214.0/24
IRR Valid
University of Rochester 256
CIDR Description IP NUMs(prefix /64)
2620:107:a000::/40
IRR Valid
University of Rochester 16777216
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS174 COGENT-174 - Cogent Communications, LLC, US United States 36,233,472 215,834,689,537 IPv4 IPv4 IPv6 IPv6
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 28,864,512 81,626,398,720 IPv4 IPv4 IPv6 IPv6
AS3630 NYSERNET-BLK - NYSERNet, US United States 512 65,536 IPv4 IPv4 IPv6 IPv6
AS3754 NYSERNET3-AS - NYSERNet, US United States 0 131,328 IPv4 IPv4 IPv6 IPv6 
ASNumber:       20
ASName:         UR
ASHandle:       AS20
RegDate:        1984-07-27
Updated:        2019-10-01
Ref:            https://rdap.arin.net/registry/autnum/20

OrgID:          UNIVER-40-Z
OrgName:        University of Rochester
CanAllocate:    
Street:         University IT
Street:         1630 Lond Pond Road
City:           Rochester
State/Prov:     NY
Country:        US
PostalCode:     14626
Comment:        Please report network abuse complaints to
Comment:        [email protected]
RegDate:        2009-03-30
Updated:        2026-06-10
OrgAbuseHandle  DRB62-ARIN
OrgAbuseHandle  FERNA540-ARIN
OrgAbuseHandle  URAC1-ARIN
OrgNOCHandle    DRB62-ARIN
OrgNOCHandle    FERNA540-ARIN
OrgNOCHandle    URTC-ARIN
OrgRoutingHandle DRB62-ARIN
OrgRoutingHandle FERNA540-ARIN
OrgRoutingHandle URTC-ARIN
OrgDNSHandle    DRB62-ARIN
OrgDNSHandle    FERNA540-ARIN
OrgDNSHandle    URTC-ARIN
OrgAdminHandle  URAC-ARIN
OrgTechHandle   DRB62-ARIN
OrgTechHandle   FERNA540-ARIN
OrgTechHandle   URTC-ARIN
Source:         ARIN

OrgAbuseHandleHandle:  DRB62-ARIN
OrgAbuseHandleName:    Bentley, Douglas
OrgAbuseHandlePhone:   +1-585-275-6550
OrgAbuseHandleEmail:   [email protected]
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/DRB62-ARIN

OrgAbuseHandleHandle:  FERNA540-ARIN
OrgAbuseHandleName:    Fernandes, Amit
OrgAbuseHandlePhone:   +1-585-506-7390
OrgAbuseHandleEmail:   [email protected]
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/FERNA540-ARIN

OrgAbuseHandleHandle:  URAC1-ARIN
OrgAbuseHandleName:    University of Rochester Abuse Contact, 
OrgAbuseHandlePhone:   +1-585-275-0090
OrgAbuseHandleEmail:   [email protected]
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/URAC1-ARIN

OrgNOCHandleHandle:  DRB62-ARIN
OrgNOCHandleName:    Bentley, Douglas
OrgNOCHandlePhone:   +1-585-275-6550
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/DRB62-ARIN

OrgNOCHandleHandle:  FERNA540-ARIN
OrgNOCHandleName:    Fernandes, Amit
OrgNOCHandlePhone:   +1-585-506-7390
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/FERNA540-ARIN

OrgNOCHandleHandle:  URTC-ARIN
OrgNOCHandleName:    University of Rochester Technical Contact, 
OrgNOCHandlePhone:   +1-585-275-0090
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/URTC-ARIN

OrgRoutingHandleHandle:  DRB62-ARIN
OrgRoutingHandleName:    Bentley, Douglas
OrgRoutingHandlePhone:   +1-585-275-6550
OrgRoutingHandleEmail:   [email protected]
OrgRoutingHandleRef:     https://rdap.arin.net/registry/entity/DRB62-ARIN

OrgRoutingHandleHandle:  FERNA540-ARIN
OrgRoutingHandleName:    Fernandes, Amit
OrgRoutingHandlePhone:   +1-585-506-7390
OrgRoutingHandleEmail:   [email protected]
OrgRoutingHandleRef:     https://rdap.arin.net/registry/entity/FERNA540-ARIN

OrgRoutingHandleHandle:  URTC-ARIN
OrgRoutingHandleName:    University of Rochester Technical Contact, 
OrgRoutingHandlePhone:   +1-585-275-0090
OrgRoutingHandleEmail:   [email protected]
OrgRoutingHandleRef:     https://rdap.arin.net/registry/entity/URTC-ARIN

OrgDNSHandleHandle:  DRB62-ARIN
OrgDNSHandleName:    Bentley, Douglas
OrgDNSHandlePhone:   +1-585-275-6550
OrgDNSHandleEmail:   [email protected]
OrgDNSHandleRef:     https://rdap.arin.net/registry/entity/DRB62-ARIN

OrgDNSHandleHandle:  FERNA540-ARIN
OrgDNSHandleName:    Fernandes, Amit
OrgDNSHandlePhone:   +1-585-506-7390
OrgDNSHandleEmail:   [email protected]
OrgDNSHandleRef:     https://rdap.arin.net/registry/entity/FERNA540-ARIN

OrgDNSHandleHandle:  URTC-ARIN
OrgDNSHandleName:    University of Rochester Technical Contact, 
OrgDNSHandlePhone:   +1-585-275-0090
OrgDNSHandleEmail:   [email protected]
OrgDNSHandleRef:     https://rdap.arin.net/registry/entity/URTC-ARIN

OrgAdminHandleHandle:  URAC-ARIN
OrgAdminHandleName:    University of Rochester Admin Contact, 
OrgAdminHandlePhone:   +1-585-275-0090
OrgAdminHandleEmail:   [email protected]
OrgAdminHandleRef:     https://rdap.arin.net/registry/entity/URAC-ARIN

OrgTechHandleHandle:  DRB62-ARIN
OrgTechHandleName:    Bentley, Douglas
OrgTechHandlePhone:   +1-585-275-6550
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/DRB62-ARIN

OrgTechHandleHandle:  FERNA540-ARIN
OrgTechHandleName:    Fernandes, Amit
OrgTechHandlePhone:   +1-585-506-7390
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/FERNA540-ARIN

OrgTechHandleHandle:  URTC-ARIN
OrgTechHandleName:    University of Rochester Technical Contact, 
OrgTechHandlePhone:   +1-585-275-0090
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/URTC-ARIN

RTechHandleHandle:  FERNA540-ARIN
RTechHandleName:    Fernandes, Amit
RTechHandlePhone:   +1-585-506-7390
RTechHandleEmail:   [email protected]
RTechHandleRef:     https://rdap.arin.net/registry/entity/FERNA540-ARIN

RTechHandleHandle:  URTC-ARIN
RTechHandleName:    University of Rochester Technical Contact, 
RTechHandlePhone:   +1-585-275-0090
RTechHandleEmail:   [email protected]
RTechHandleRef:     https://rdap.arin.net/registry/entity/URTC-ARIN