ASN AS11572 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11572?

AS11572 is listed under PhoenixNAP LLC.

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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AS11572 PhoenixNAP LLC | IPGeolocation.io

ASN Lookup Tool

PhoenixNAP LLC phoenixnap.com

US 14 Routes

AS Data

AS11572

AS11572 – PhoenixNAP LLC

AS Number	11572
AS Name	SS-ATL
Organization	PhoenixNAP LLC (phoen-56)
Country	US
Website	phoenixnap.com
Number of IPv4 Routes	12
Number of IPv6 Routes	2
ASN type	HOSTING
Registry	ARIN
Date Allocated	2010-01-11

ASN Intelligence API for production workflows

Use ASN data for AS11572 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
104.244.52.0/24	AS11572	PhoenixNAP LLC	INTERNAL OPERATIONS PhoenixNAP PhoenixNAP	256
131.153.152.0/23	AS11572	PhoenixNAP LLC	Jefferson James	512
2607:6003:2305::/48	AS11572	PhoenixNAP LLC	PhoenixNAP LLC	~1×10²⁴
63.214.166.0/23	AS11572	PhoenixNAP LLC	CWIE	512
64.38.249.0/24	AS11572	PhoenixNAP LLC	PNAP ATL	256
131.153.132.0/22	AS11572	PhoenixNAP LLC	Voxo	1024
131.153.24.0/21	AS11572	PhoenixNAP LLC	INTERNAL OPERATIONS SS CWIESYSENGSERVERS	2048
206.232.0.0/22	AS11572	PhoenixNAP LLC	Aventice LLC	1024
131.153.66.0/23	AS11572	PhoenixNAP LLC	SECURED SERVERS LLC	512
64.38.250.0/24	AS11572	PhoenixNAP LLC	PNAP ATL	256
131.153.65.0/24	AS11572	PhoenixNAP LLC	SIP Global Phone, LLC	256
131.153.82.0/24	AS11572	PhoenixNAP LLC	SECURED SERVERS LLC	256
2607:ff00:500::/40	AS11572	PhoenixNAP LLC	SECURED SERVERS LLC	~309×10²⁴
204.217.128.0/22	AS11572	PhoenixNAP LLC	Aventice LLC	1024

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:       11572
ASName:         SS-ATL
ASHandle:       AS11572
RegDate:        2010-01-11
Updated:        2018-02-27
Ref:            https://rdap.arin.net/registry/autnum/11572


OrgName:        PhoenixNAP LLC
OrgId:          PHOEN-56
Address:        3402 E. University Drive
City:           Phoenix
StateProv:      AZ
PostalCode:     85034
Country:        US
RegDate:        2009-07-23
Updated:        2026-04-06
Ref:            https://rdap.arin.net/registry/entity/PHOEN-56

ReferralServer:  rwhois://rwhois.phoenixnap.com:4321

OrgTechHandle: CARMO67-ARIN
OrgTechName:   Carmody, Robert 
OrgTechPhone:  +1-480-506-0120 
OrgTechEmail:  robertca@phoenixnap.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CARMO67-ARIN

OrgTechHandle: PETRO182-ARIN
OrgTechName:   Petrovic, Dragan 
OrgTechPhone:  +381621448366 
OrgTechEmail:  draganp@phoenixnap.com
OrgTechRef:    https://rdap.arin.net/registry/entity/PETRO182-ARIN

OrgTechHandle: MUSGR48-ARIN
OrgTechName:   Musgrave, Brian 
OrgTechPhone:  +1-480-401-0309 
OrgTechEmail:  brianmu@phoenixnap.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MUSGR48-ARIN

OrgAbuseHandle: ABUSE2349-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-480-422-2022 
OrgAbuseEmail:  abuse@phoenixnap.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE2349-ARIN

OrgTechHandle: MONTE41-ARIN
OrgTechName:   Montebello, Adrian 
OrgTechPhone:  +35679305305 
OrgTechEmail:  adrianm@phoenixnap.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MONTE41-ARIN

OrgTechHandle: ILICM-ARIN
OrgTechName:   Ilic, Milos 
OrgTechPhone:  +381615494754 
OrgTechEmail:  milosi@phoenixnap.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ILICM-ARIN

OrgTechHandle: TECH357-ARIN
OrgTechName:   Tech
OrgTechPhone:  +1-480-646-5362 
OrgTechEmail:  support@phoenixnap.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TECH357-ARIN

RTechHandle: TECH357-ARIN
RTechName:   Tech
RTechPhone:  +1-480-646-5362 
RTechEmail:  support@phoenixnap.com
RTechRef:    https://rdap.arin.net/registry/entity/TECH357-ARIN

RAbuseHandle: ABUSE2349-ARIN
RAbuseName:   Abuse
RAbusePhone:  +1-480-422-2022 
RAbuseEmail:  abuse@phoenixnap.com
RAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE2349-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" : "11572",
    "as_handle" : "AS11572",
    "as_name" : "SS-ATL",
    "tech_contacts" : [ "CARMO67-ARIN", "PETRO182-ARIN", "MUSGR48-ARIN", "MONTE41-ARIN", "ILICM-ARIN", "TECH357-ARIN", "TECH357-ARIN" ],
    "abuse_contacts" : [ "ABUSE2349-ARIN", "ABUSE2349-ARIN" ],
    "date_created" : "2010-01-11",
    "date_updated" : "2018-02-27",
    "source" : "https://rdap.arin.net/registry/autnum/11572"
  } ],
  "organization" : {
    "handle" : "PHOEN-56",
    "name" : "PhoenixNAP LLC",
    "address" : [ "3402 E. University Drive", "Phoenix", "AZ", "85034", "US" ],
    "street" : "E. University Drive",
    "city" : "Phoenix",
    "state" : "AZ",
    "zip_code" : "85034",
    "country" : [ "US" ],
    "date_created" : "2009-07-23",
    "date_updated" : "2026-04-06",
    "source" : "https://rdap.arin.net/registry/entity/PHOEN-56",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "CARMO67-ARIN",
    "name" : "Carmody, Robert",
    "email" : [ "robertca@phoenixnap.com" ],
    "phone" : [ "+1-480-506-0120" ],
    "source" : "https://rdap.arin.net/registry/entity/CARMO67-ARIN"
  }, {
    "handle" : "PETRO182-ARIN",
    "name" : "Petrovic, Dragan",
    "email" : [ "draganp@phoenixnap.com" ],
    "phone" : [ "+381621448366" ],
    "source" : "https://rdap.arin.net/registry/entity/PETRO182-ARIN"
  }, {
    "handle" : "MUSGR48-ARIN",
    "name" : "Musgrave, Brian",
    "email" : [ "brianmu@phoenixnap.com" ],
    "phone" : [ "+1-480-401-0309" ],
    "source" : "https://rdap.arin.net/registry/entity/MUSGR48-ARIN"
  }, {
    "handle" : "MONTE41-ARIN",
    "name" : "Montebello, Adrian",
    "email" : [ "adrianm@phoenixnap.com" ],
    "phone" : [ "+35679305305" ],
    "source" : "https://rdap.arin.net/registry/entity/MONTE41-ARIN"
  }, {
    "handle" : "ILICM-ARIN",
    "name" : "Ilic, Milos",
    "email" : [ "milosi@phoenixnap.com" ],
    "phone" : [ "+381615494754" ],
    "source" : "https://rdap.arin.net/registry/entity/ILICM-ARIN"
  }, {
    "handle" : "TECH357-ARIN",
    "name" : "Tech",
    "email" : [ "support@phoenixnap.com" ],
    "phone" : [ "+1-480-646-5362" ],
    "source" : "https://rdap.arin.net/registry/entity/TECH357-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ABUSE2349-ARIN",
    "name" : "Abuse",
    "email" : [ "abuse@phoenixnap.com" ],
    "phone" : [ "+1-480-422-2022" ],
    "source" : "https://rdap.arin.net/registry/entity/ABUSE2349-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS12189	PhoenixNAP LLC	US

Upstreams

AS Number	Description	Country
AS12189	PhoenixNAP LLC	US

Contacts

Email Contacts

support@phoenixnap.com adrianm@phoenixnap.com brianmu@phoenixnap.com robertca@phoenixnap.com milosi@phoenixnap.com draganp@phoenixnap.com

Abuse Contacts

abuse@phoenixnap.com