38.128.0.0/9

PSINet, Inc.

Announcing ASNs: 1

Parent Prefix:

Abuse: [email protected]

RIR: IANA

Prefix
Routing
Raw Whois

Announcing ASNs

Country	ASN	Name	Description
	AS174	COGENT-174	Cogent Communications

38.128.0.0/9 Summary

Prefix:

38.128.0.0/9

Name:

COGENT-A

Description:

PSINet, Inc.

Country:

IP Addresses:

8,388,608

Regional Registry:

IANA

Allocation Status:

Parent Prefix:

Contacts

Email Contacts:

[email protected]

Abuse Contacts:

[email protected]

Address:

2450 N Street NW,

Washington,

DC,

20037,

AS174 Cogent Communications - Prefix Upstreams

ASN	Name	Description
AS3356	LEVEL3	Level 3 Parent, LLC
AS3257	GTT-BACKBONE	GTT
AS6830	LibertyGlobal	Liberty Global (formerly UPC Broadband Holding, aka AORTA)
AS1299	TWELVE99	Arelion, f/k/a Telia Carrier
AS7018	ATT-INTERNET4	AT&T Enterprises, LLC
AS2914	NTT-DATA-2914	NTT America, Inc.
AS2497	IIJ	Internet Initiative Japan Inc.

#
# 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 1997-2025, American Registry for Internet Numbers, Ltd.
#


#
# Query terms are ambiguous.  The query is assumed to be:
#     "r + < 38.128.0.0/9"
#
# Use "?" to get help.
#

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:       AS174
Organization:   PSINet, Inc. (PSI)
RegDate:        1991-04-16
Updated:        2023-10-11
Comment:        IP allocations within 38.0.0.0/8 are used for Cogent customer static IP assignments.
Comment:        
Comment:        Reassignment information for this block can be found at rwhois.cogentco.com 4321
Comment:        
Comment:        Geofeed https://geofeed.cogentco.com/geofeed.csv
Ref:            https://rdap.arin.net/registry/ip/38.0.0.0



OrgName:        PSINet, Inc.
OrgId:          PSI
Address:        2450 N Street NW
City:           Washington
StateProv:      DC
PostalCode:     20037
Country:        US
RegDate:        
Updated:        2023-10-11
Comment:        Geofeed https://geofeed.cogentco.com/geofeed.csv
Ref:            https://rdap.arin.net/registry/entity/PSI

ReferralServer:  rwhois://rwhois.cogentco.com:4321

OrgNOCHandle: ZC108-ARIN
OrgNOCName:   Cogent Communications
OrgNOCPhone:  +1-877-875-4311 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/ZC108-ARIN

OrgAbuseHandle: COGEN-ARIN
OrgAbuseName:   Cogent Abuse
OrgAbusePhone:  +1-877-875-4311 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/COGEN-ARIN

OrgTechHandle: IPALL-ARIN
OrgTechName:   IP Allocation
OrgTechPhone:  +1-877-875-4311 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/IPALL-ARIN


RTechHandle: PSI-NISC-ARIN
RTechName:   IP Allocation
RTechPhone:  +1-877-875-4311 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/PSI-NISC-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 1997-2025, American Registry for Internet Numbers, Ltd.
#