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AS31952 Calamos Advisors LLC | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

Calamos Advisors LLC calamos.com

US 1 Routes

AS Data

AS31952

AS31952 – Calamos Advisors LLC

AS Number	31952
AS Name	CAL-NAP-ASN
Organization	Calamos Advisors LLC (cal-137)
Country	US
Website	calamos.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2004-01-30

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Use ASN data for AS31952 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.52.162.0/24	AS31952	Calamos Advisors LLC	Calamos Advisors LLC	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:       31952
ASName:         CAL-NAP-ASN
ASHandle:       AS31952
RegDate:        2004-01-30
Updated:        2014-07-18
Ref:            https://rdap.arin.net/registry/autnum/31952


OrgName:        Calamos Advisors LLC
OrgId:          CAL-137
Address:        2020 Calamos Court
City:           Naperville
StateProv:      IL
PostalCode:     60563
Country:        US
RegDate:        2014-05-09
Updated:        2014-05-09
Ref:            https://rdap.arin.net/registry/entity/CAL-137


OrgAbuseHandle: SMITH883-ARIN
OrgAbuseName:   Smith, Andrew 
OrgAbusePhone:  +1-630-245-1286 
OrgAbuseEmail:  asmith@calamos.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SMITH883-ARIN

OrgTechHandle: SMITH883-ARIN
OrgTechName:   Smith, Andrew 
OrgTechPhone:  +1-630-245-1286 
OrgTechEmail:  asmith@calamos.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SMITH883-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" : "31952",
    "as_handle" : "AS31952",
    "as_name" : "CAL-NAP-ASN",
    "tech_contacts" : [ "SMITH883-ARIN" ],
    "abuse_contacts" : [ "SMITH883-ARIN" ],
    "date_created" : "2004-01-30",
    "date_updated" : "2014-07-18",
    "source" : "https://rdap.arin.net/registry/autnum/31952"
  } ],
  "organization" : {
    "handle" : "CAL-137",
    "name" : "Calamos Advisors LLC",
    "address" : [ "2020 Calamos Court", "Naperville", "IL", "60563", "US" ],
    "street" : "Calamos Court",
    "city" : "Naperville",
    "state" : "IL",
    "zip_code" : "60563",
    "country" : [ "US" ],
    "date_created" : "2014-05-09",
    "date_updated" : "2014-05-09",
    "source" : "https://rdap.arin.net/registry/entity/CAL-137",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "SMITH883-ARIN",
    "name" : "Smith, Andrew",
    "email" : [ "asmith@calamos.com" ],
    "phone" : [ "+1-630-245-1286" ],
    "source" : "https://rdap.arin.net/registry/entity/SMITH883-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "SMITH883-ARIN",
    "name" : "Smith, Andrew",
    "email" : [ "asmith@calamos.com" ],
    "phone" : [ "+1-630-245-1286" ],
    "source" : "https://rdap.arin.net/registry/entity/SMITH883-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS701	Verizon Business/UUnet	US
AS6461	Zayo Bandwidth	US
AS701	Verizon Business	US

Upstreams

AS Number	Description	Country
AS6461	Zayo Bandwidth	US
AS701	Verizon Business	US

Frequently Asked Questions

What is ASN AS31952?

ASN AS31952 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS31952?

AS31952 is listed under Calamos Advisors LLC.

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.