AS4550 - COGENT-4550 - Cogent Communications, LLC, US

Brazil
AS Number
AS4550
AS Name
COGENT-4550
Org Name
Cogent Communications, LLC
Country / Region
United States
Registry

arin

RegDate

2000-05-30

Updated

2025-09-23

AS4550 Looking Glass
IPv4Prefixes

7

IPv6Prefixes

0

IPv4 NUMs

3,072

IPv6 NUMs(/64)

0

CIDR Description IP Num
187.33.176.0/23
IRR InValid
Link Centro de Informatica Ltda. 512
187.33.178.0/23
IRR InValid
Link Centro de Informatica Ltda. 512
187.33.180.0/24
IRR InValid
Link Centro de Informatica Ltda. 256
187.33.181.0/24
IRR InValid
Link Centro de Informatica Ltda. 256
187.33.182.0/24
IRR InValid
Link Centro de Informatica Ltda. 256
187.33.183.0/24
IRR InValid
Link Centro de Informatica Ltda. 256
187.33.188.0/22
IRR InValid
Link Centro de Informatica Ltda. 1024
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS10429 TELEFÔNICA BRASIL S.A, BR Brazil 1,664,768 1,619,525,632 IPv4 IPv4
AS18881 TELEFÔNICA BRASIL S.A, BR Brazil 4,616,192 43,067,113,472 IPv4 IPv4

Whois Record

ASNumber 4550

ASNumber
4550
ASName
COGENT-4550
ASHandle
RegDate
1995-04-21
Updated
2012-03-02
Ref
https://rdap.arin.net/registry/autnum/4550

OrgID COGC

OrgID
COGC
OrgName
Cogent Communications, LLC
CanAllocate
Street
2450 N Street NW
City
Washington
State/Prov
DC
Country
US
PostalCode
20037
Comment
Geofeed https://geofeed.cogentco.com/geofeed.csv
RegDate
2000-05-30
Updated
2025-09-23
ReferralServer
rwhois://rwhois.cogentco.com:4321
OrgTechHandle
IPALL-ARIN
OrgAbuseHandle
COGEN-ARIN
OrgNOCHandle
ZC108-ARIN
OrgAdminHandle
IPALL-ARIN
Source
ARIN

OrgAdminHandleHandle IPALL-ARIN

OrgAdminHandleHandle
IPALL-ARIN
OrgAdminHandleName
IP Allocation,
OrgAdminHandlePhone
+1-877-875-4311
OrgAdminHandleEmail
ipalloc@cogentco.com
OrgAdminHandleRef
https://rdap.arin.net/registry/entity/IPALL-ARIN

OrgTechHandleHandle IPALL-ARIN

OrgTechHandleHandle
IPALL-ARIN
OrgTechHandleName
IP Allocation,
OrgTechHandlePhone
+1-877-875-4311
OrgTechHandleEmail
ipalloc@cogentco.com
OrgTechHandleRef
https://rdap.arin.net/registry/entity/IPALL-ARIN

OrgAbuseHandleHandle COGEN-ARIN

OrgAbuseHandleHandle
COGEN-ARIN
OrgAbuseHandleName
Cogent Abuse,
OrgAbuseHandlePhone
+1-877-875-4311
OrgAbuseHandleEmail
abuse@cogentco.com
OrgAbuseHandleRef
https://rdap.arin.net/registry/entity/COGEN-ARIN

OrgNOCHandleHandle ZC108-ARIN

OrgNOCHandleHandle
ZC108-ARIN
OrgNOCHandleName
Cogent Communications,
OrgNOCHandlePhone
+1-877-875-4311
OrgNOCHandleEmail
noc@cogentco.com
OrgNOCHandleRef
https://rdap.arin.net/registry/entity/ZC108-ARIN
 

ASNumber:       4550
ASName:         COGENT-4550
ASHandle:       AS4550
RegDate:        1995-04-21
Updated:        2012-03-02
Ref:            https://rdap.arin.net/registry/autnum/4550

OrgID:          COGC
OrgName:        Cogent Communications, LLC
CanAllocate:    
Street:         2450 N Street NW
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20037
Comment:        Geofeed https://geofeed.cogentco.com/geofeed.csv
RegDate:        2000-05-30
Updated:        2025-09-23
ReferralServer: rwhois://rwhois.cogentco.com:4321
OrgTechHandle   IPALL-ARIN
OrgAbuseHandle  COGEN-ARIN
OrgNOCHandle    ZC108-ARIN
OrgAdminHandle  IPALL-ARIN
Source:         ARIN

OrgAdminHandleHandle:  IPALL-ARIN
OrgAdminHandleName:    IP Allocation, 
OrgAdminHandlePhone:   +1-877-875-4311
OrgAdminHandleEmail:   ipalloc@cogentco.com
OrgAdminHandleRef:     https://rdap.arin.net/registry/entity/IPALL-ARIN

OrgTechHandleHandle:  IPALL-ARIN
OrgTechHandleName:    IP Allocation, 
OrgTechHandlePhone:   +1-877-875-4311
OrgTechHandleEmail:   ipalloc@cogentco.com
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/IPALL-ARIN

OrgAbuseHandleHandle:  COGEN-ARIN
OrgAbuseHandleName:    Cogent Abuse, 
OrgAbuseHandlePhone:   +1-877-875-4311
OrgAbuseHandleEmail:   abuse@cogentco.com
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/COGEN-ARIN

OrgNOCHandleHandle:  ZC108-ARIN
OrgNOCHandleName:    Cogent Communications, 
OrgNOCHandlePhone:   +1-877-875-4311
OrgNOCHandleEmail:   noc@cogentco.com
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/ZC108-ARIN