#
# 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.
#
# start
NetRange: 38.0.0.0 - 38.255.255.255
CIDR: 38.0.0.0/8
NetName: COGENT-A
NetHandle: NET-38-0-0-0-1
Parent: ()
NetType: Direct Allocation
OriginAS:
Organization: Cogent Communications, LLC (COGC)
RegDate: 1991-04-16
Updated: 2025-09-23
Ref: https://rdap.arin.net/registry/ip/38.0.0.0
OrgName: Cogent Communications, LLC
OrgId: COGC
Address: 2450 N Street NW
City: Washington
StateProv: DC
PostalCode: 20037
Country: US
RegDate: 2000-05-30
Updated: 2025-09-23
Comment: Geofeed https://geofeed.cogentco.com/geofeed.csv
Ref: https://rdap.arin.net/registry/entity/COGC
ReferralServer: rwhois://rwhois.cogentco.com:4321
OrgNOCHandle: ZC108-ARIN
OrgNOCName: Cogent Communications
OrgNOCPhone: +1-877-875-4311
OrgNOCEmail: 
@cogentco.com
OrgNOCRef: https://rdap.arin.net/registry/entity/ZC108-ARIN
OrgAbuseHandle: COGEN-ARIN
OrgAbuseName: Cogent Abuse
OrgAbusePhone: +1-877-875-4311
OrgAbuseEmail: 
@cogentco.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/COGEN-ARIN
OrgTechHandle: IPALL-ARIN
OrgTechName: IP Allocation
OrgTechPhone: +1-877-875-4311
OrgTechEmail: 
@cogentco.com
OrgTechRef: https://rdap.arin.net/registry/entity/IPALL-ARIN
# end
# start
NetRange: 38.148.0.0 - 38.148.127.255
CIDR: 38.148.0.0/17
NetName: SUMOFIBER-NET-38-148-0-0-1
NetHandle: NET-38-148-0-0-1
Parent: COGENT-A (NET-38-0-0-0-1)
NetType: Reallocated
OriginAS:
Organization: Sumofiber (CL-64)
RegDate: 2023-04-06
Updated: 2025-05-07
Comment: Please use the @sumofiber.com email address for all complaints regarding UCE (spam), copyright violations, security intrusions, and other suspected network abuse sourcing from SUMOFIBER networks. DO NOT COPY your complaint to any other ARIN SUMOFIBER POC's or email addresses on the SUMOFIBER network. Failure to comply with this statement will result in your complaint being ignored.
Ref: https://rdap.arin.net/registry/ip/38.148.0.0
OrgName: Sumofiber
OrgId: CL-64
Address: 505 w 2600 s
City: Bountiful
StateProv: UT
PostalCode: 84010
Country: US
RegDate: 2011-12-16
Updated: 2025-02-12
Comment: Geofeed https://as4226.com/geofeed.csv
Ref: https://rdap.arin.net/registry/entity/CL-64
OrgTechHandle: APC16-ARIN
OrgTechName: Arin Point of Contact
OrgTechPhone: +1-801-320-1000
OrgTechEmail: @sumofiber.com
OrgTechRef: https://rdap.arin.net/registry/entity/APC16-ARIN
OrgNOCHandle: APC16-ARIN
OrgNOCName: Arin Point of Contact
OrgNOCPhone: +1-801-320-1000
OrgNOCEmail: @sumofiber.com
OrgNOCRef: https://rdap.arin.net/registry/entity/APC16-ARIN
OrgAbuseHandle: ABUSE9078-ARIN
OrgAbuseName: ABUSE
OrgAbusePhone: +1-801-320-1000
OrgAbuseEmail: @sumofiber.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE9078-ARIN
RTechHandle: APC16-ARIN
RTechName: Arin Point of Contact
RTechPhone: +1-801-320-1000
RTechEmail: @sumofiber.com
RTechRef: https://rdap.arin.net/registry/entity/APC16-ARIN
RNOCHandle: APC16-ARIN
RNOCName: Arin Point of Contact
RNOCPhone: +1-801-320-1000
RNOCEmail: @sumofiber.com
RNOCRef: https://rdap.arin.net/registry/entity/APC16-ARIN
# end
#
# 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.
#