What is ASN AS397952?

ASN AS397952 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS397952?

AS397952 is listed under Nexstream.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS397952 Nexstream | IPGeolocation.io

ASN Lookup Tool

Nexstream nexstream.net

US 4 Routes

AS Data

AS397952

AS397952 – Nexstream

AS Number	397952
AS Name	NEXSTREAM
Organization	Nexstream (itml-2)
Country	US
Website	nexstream.net
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2019-09-18

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Use ASN data for AS397952 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.116.52.0/22	AS397952	Nexstream	Nexstream	1024
199.116.52.0/23	AS397952	Nexstream	Nexstream	512
23.135.240.0/24	AS397952	Nexstream	Nexstream	256
158.51.107.0/24	AS397952	Nexstream	Nexstream	256

Raw Whois Response

#
# 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.
#


ASNumber:       397952
ASName:         NEXSTREAM
ASHandle:       AS397952
RegDate:        2019-09-18
Updated:        2019-09-18
Ref:            https://rdap.arin.net/registry/autnum/397952


OrgName:        Nexstream
OrgId:          ITML-2
Address:        415 S Washington St
City:           Fredericksburg
StateProv:      TX
PostalCode:     78624
Country:        US
RegDate:        2017-11-02
Updated:        2026-04-09
Comment:        http://nexstream.net
Comment:        Standard NOC hours are 8:00 AM to 5:00 PM CST
Ref:            https://rdap.arin.net/registry/entity/ITML-2


OrgNOCHandle: POUSS4-ARIN
OrgNOCName:   Pous, Spencer 
OrgNOCPhone:  +1-512-870-8312 
OrgNOCEmail:  spous@nexstream.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/POUSS4-ARIN

OrgTechHandle: POUSS4-ARIN
OrgTechName:   Pous, Spencer 
OrgTechPhone:  +1-512-870-8312 
OrgTechEmail:  spous@nexstream.net
OrgTechRef:    https://rdap.arin.net/registry/entity/POUSS4-ARIN

OrgRoutingHandle: NETWO9161-ARIN
OrgRoutingName:   Network
OrgRoutingPhone:  +1-888-499-2613 
OrgRoutingEmail:  abuse@nexstream.net
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NETWO9161-ARIN

OrgDNSHandle: NETWO9161-ARIN
OrgDNSName:   Network
OrgDNSPhone:  +1-888-499-2613 
OrgDNSEmail:  abuse@nexstream.net
OrgDNSRef:    https://rdap.arin.net/registry/entity/NETWO9161-ARIN

OrgRoutingHandle: POUSS4-ARIN
OrgRoutingName:   Pous, Spencer 
OrgRoutingPhone:  +1-512-870-8312 
OrgRoutingEmail:  spous@nexstream.net
OrgRoutingRef:    https://rdap.arin.net/registry/entity/POUSS4-ARIN

OrgDNSHandle: POUSS4-ARIN
OrgDNSName:   Pous, Spencer 
OrgDNSPhone:  +1-512-870-8312 
OrgDNSEmail:  spous@nexstream.net
OrgDNSRef:    https://rdap.arin.net/registry/entity/POUSS4-ARIN

OrgNOCHandle: KINGP11-ARIN
OrgNOCName:   King, Patrick 
OrgNOCPhone:  +1-512-870-8310 
OrgNOCEmail:  pking@4iptech.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/KINGP11-ARIN

OrgTechHandle: KINGP11-ARIN
OrgTechName:   King, Patrick 
OrgTechPhone:  +1-512-870-8310 
OrgTechEmail:  pking@4iptech.com
OrgTechRef:    https://rdap.arin.net/registry/entity/KINGP11-ARIN

OrgAbuseHandle: POUSS4-ARIN
OrgAbuseName:   Pous, Spencer 
OrgAbusePhone:  +1-512-870-8312 
OrgAbuseEmail:  spous@nexstream.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/POUSS4-ARIN

OrgAbuseHandle: NETWO9161-ARIN
OrgAbuseName:   Network
OrgAbusePhone:  +1-888-499-2613 
OrgAbuseEmail:  abuse@nexstream.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO9161-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 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "397952",
    "as_handle" : "AS397952",
    "as_name" : "NEXSTREAM",
    "admin_contacts" : [ "NETWO9161-ARIN", "POUSS4-ARIN" ],
    "tech_contacts" : [ "POUSS4-ARIN", "NETWO9161-ARIN", "POUSS4-ARIN", "KINGP11-ARIN" ],
    "abuse_contacts" : [ "POUSS4-ARIN", "NETWO9161-ARIN" ],
    "date_created" : "2019-09-18",
    "date_updated" : "2019-09-18",
    "source" : "https://rdap.arin.net/registry/autnum/397952"
  } ],
  "organization" : {
    "handle" : "ITML-2",
    "name" : "Nexstream",
    "address" : [ "415 S Washington St", "Fredericksburg", "TX", "78624", "US" ],
    "street" : "S Washington St",
    "city" : "Fredericksburg",
    "state" : "TX",
    "zip_code" : "78624",
    "country" : [ "US" ],
    "date_created" : "2017-11-02",
    "date_updated" : "2026-04-09",
    "source" : "https://rdap.arin.net/registry/entity/ITML-2",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "NETWO9161-ARIN",
    "name" : "Network",
    "email" : [ "abuse@nexstream.net" ],
    "phone" : [ "+1-888-499-2613" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO9161-ARIN"
  }, {
    "handle" : "POUSS4-ARIN",
    "name" : "Pous, Spencer",
    "email" : [ "spous@nexstream.net" ],
    "phone" : [ "+1-512-870-8312" ],
    "source" : "https://rdap.arin.net/registry/entity/POUSS4-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "POUSS4-ARIN",
    "name" : "Pous, Spencer",
    "email" : [ "spous@nexstream.net" ],
    "phone" : [ "+1-512-870-8312" ],
    "source" : "https://rdap.arin.net/registry/entity/POUSS4-ARIN"
  }, {
    "handle" : "NETWO9161-ARIN",
    "name" : "Network",
    "email" : [ "abuse@nexstream.net" ],
    "phone" : [ "+1-888-499-2613" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO9161-ARIN"
  }, {
    "handle" : "KINGP11-ARIN",
    "name" : "King, Patrick",
    "email" : [ "pking@4iptech.com" ],
    "phone" : [ "+1-512-870-8310" ],
    "source" : "https://rdap.arin.net/registry/entity/KINGP11-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "POUSS4-ARIN",
    "name" : "Pous, Spencer",
    "email" : [ "spous@nexstream.net" ],
    "phone" : [ "+1-512-870-8312" ],
    "source" : "https://rdap.arin.net/registry/entity/POUSS4-ARIN"
  }, {
    "handle" : "NETWO9161-ARIN",
    "name" : "Network",
    "email" : [ "abuse@nexstream.net" ],
    "phone" : [ "+1-888-499-2613" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO9161-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS1239	Cogent Communications, LLC	US
AS25091	IP Max SA	CH
AS6939	Hurricane Electric LLC	US
AS174	Cogent Communications, LLC	US
AS971	PureVoltage Hosting Inc.	US
AS54979	Zeecon Wireless Internet L.L.C.	US
AS4230	CLARO S.A.	BR
AS14907	Wikimedia Foundation Inc.	US
AS28398	INTERNET TELEFONIA Y TV DE MICHOACAN SA DE CV	MX
AS35280	F5 Networks SARL	FR

Upstreams

AS Number	Description	Country
AS25091	IP Max SA	CH
AS6939	Hurricane Electric LLC	US
AS174	Cogent Communications, LLC	US
AS137409	GSL Networks Pty LTD	AU
AS971	PureVoltage Hosting Inc.	US
AS4230	CLARO S.A.	BR