ASN AS16432 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS16432?

AS16432 is listed under Discover Financial Services.

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.

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AS16432 Discover Financial Services

ASN Lookup Tool

Discover Financial Services discoverfinancial.com

US 8 Routes

AS Data

AS16432

AS16432 – Discover Financial Services

AS Number	16432
AS Name	DFS-NAO
Organization	Discover Financial Services (dfs-35)
Country	US
Website	discoverfinancial.com
Number of IPv4 Routes	8
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2005-06-14

ASN Intelligence API for production workflows

Use ASN data for AS16432 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.38.155.0/24	AS16432	Discover Financial Services	Discover Financial Services	256
170.217.251.0/24	AS16432	Discover Financial Services	Discover Financial Services	256
208.88.89.0/24	AS16432	Discover Financial Services	Discover Financial Services	256
170.217.255.0/24	AS16432	Discover Financial Services	Discover Financial Services	256
199.38.151.0/24	AS16432	Discover Financial Services	Discover Financial Services	256
170.217.245.0/24	AS16432	Discover Financial Services	Discover Financial Services	256
170.217.162.0/24	AS16432	Discover Financial Services	Discover Financial Services	256
199.38.152.0/24	AS16432	Discover Financial Services	Discover Financial Services	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:       16432
ASName:         DFS-NAO
ASHandle:       AS16432
RegDate:        2005-06-14
Updated:        2020-09-08
Ref:            https://rdap.arin.net/registry/autnum/16432


OrgName:        Discover Financial Services
OrgId:          DFS-35
Address:        2500 Lake Cook Rd
City:           Riverwoods
StateProv:      IL
PostalCode:     60015
Country:        US
RegDate:        2003-03-25
Updated:        2022-05-17
Ref:            https://rdap.arin.net/registry/entity/DFS-35


OrgTechHandle: PMA213-ARIN
OrgTechName:   Appling, Paul Matthew
OrgTechPhone:  +1-224-405-8960 
OrgTechEmail:  mattappling@discover.com
OrgTechRef:    https://rdap.arin.net/registry/entity/PMA213-ARIN

OrgDNSHandle: WOODL3-ARIN
OrgDNSName:   Wood, Lance 
OrgDNSPhone:  +1-801-902-4175 
OrgDNSEmail:  lancewood@discover.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/WOODL3-ARIN

OrgAbuseHandle: DSE9-ARIN
OrgAbuseName:   Sepanski, Dave 
OrgAbusePhone:  +1-224-405-2048 
OrgAbuseEmail:  davesepanski@discoverfinancial.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DSE9-ARIN

OrgTechHandle: OLSEN205-ARIN
OrgTechName:   Olsen, Jason 
OrgTechPhone:  +1-224-405-2566 
OrgTechEmail:  jasonolsen@discover.com
OrgTechRef:    https://rdap.arin.net/registry/entity/OLSEN205-ARIN

OrgTechHandle: SEPAN3-ARIN
OrgTechName:   Sepanski, David 
OrgTechPhone:  +1-224-405-0900 
OrgTechEmail:  dave.sepanski@capitalone.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SEPAN3-ARIN

OrgTechHandle: WOODL3-ARIN
OrgTechName:   Wood, Lance 
OrgTechPhone:  +1-801-902-4175 
OrgTechEmail:  lancewood@discover.com
OrgTechRef:    https://rdap.arin.net/registry/entity/WOODL3-ARIN

OrgRoutingHandle: PMA213-ARIN
OrgRoutingName:   Appling, Paul Matthew
OrgRoutingPhone:  +1-224-405-8960 
OrgRoutingEmail:  mattappling@discover.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/PMA213-ARIN

RTechHandle: WOODL3-ARIN
RTechName:   Wood, Lance 
RTechPhone:  +1-801-902-4175 
RTechEmail:  lancewood@discover.com
RTechRef:    https://rdap.arin.net/registry/entity/WOODL3-ARIN

RTechHandle: PMA213-ARIN
RTechName:   Appling, Paul Matthew
RTechPhone:  +1-224-405-8960 
RTechEmail:  mattappling@discover.com
RTechRef:    https://rdap.arin.net/registry/entity/PMA213-ARIN

RTechHandle: OLSEN205-ARIN
RTechName:   Olsen, Jason 
RTechPhone:  +1-224-405-2566 
RTechEmail:  jasonolsen@discover.com
RTechRef:    https://rdap.arin.net/registry/entity/OLSEN205-ARIN

RTechHandle: DSE10-ARIN
RTechName:   Sepanski, Dave 
RTechPhone:  +1-224-405-2048 
RTechEmail:  davesepanski@discoverfinancial.com
RTechRef:    https://rdap.arin.net/registry/entity/DSE10-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" : "16432",
    "as_handle" : "AS16432",
    "as_name" : "DFS-NAO",
    "admin_contacts" : [ "WOODL3-ARIN" ],
    "tech_contacts" : [ "PMA213-ARIN", "OLSEN205-ARIN", "SEPAN3-ARIN", "WOODL3-ARIN", "PMA213-ARIN", "WOODL3-ARIN", "PMA213-ARIN", "OLSEN205-ARIN", "DSE10-ARIN" ],
    "abuse_contacts" : [ "DSE9-ARIN" ],
    "date_created" : "2005-06-14",
    "date_updated" : "2020-09-08",
    "source" : "https://rdap.arin.net/registry/autnum/16432"
  } ],
  "organization" : {
    "handle" : "DFS-35",
    "name" : "Discover Financial Services",
    "address" : [ "2500 Lake Cook Rd", "Riverwoods", "IL", "60015", "US" ],
    "street" : "Lake Cook Rd",
    "city" : "Riverwoods",
    "state" : "IL",
    "zip_code" : "60015",
    "country" : [ "US" ],
    "date_created" : "2003-03-25",
    "date_updated" : "2022-05-17",
    "source" : "https://rdap.arin.net/registry/entity/DFS-35",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "WOODL3-ARIN",
    "name" : "Wood, Lance",
    "email" : [ "lancewood@discover.com" ],
    "phone" : [ "+1-801-902-4175" ],
    "source" : "https://rdap.arin.net/registry/entity/WOODL3-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "PMA213-ARIN",
    "name" : "Appling, Paul Matthew",
    "email" : [ "mattappling@discover.com" ],
    "phone" : [ "+1-224-405-8960" ],
    "source" : "https://rdap.arin.net/registry/entity/PMA213-ARIN"
  }, {
    "handle" : "OLSEN205-ARIN",
    "name" : "Olsen, Jason",
    "email" : [ "jasonolsen@discover.com" ],
    "phone" : [ "+1-224-405-2566" ],
    "source" : "https://rdap.arin.net/registry/entity/OLSEN205-ARIN"
  }, {
    "handle" : "SEPAN3-ARIN",
    "name" : "Sepanski, David",
    "email" : [ "dave.sepanski@capitalone.com" ],
    "phone" : [ "+1-224-405-0900" ],
    "source" : "https://rdap.arin.net/registry/entity/SEPAN3-ARIN"
  }, {
    "handle" : "WOODL3-ARIN",
    "name" : "Wood, Lance",
    "email" : [ "lancewood@discover.com" ],
    "phone" : [ "+1-801-902-4175" ],
    "source" : "https://rdap.arin.net/registry/entity/WOODL3-ARIN"
  }, {
    "handle" : "DSE10-ARIN",
    "name" : "Sepanski, Dave",
    "email" : [ "davesepanski@discoverfinancial.com" ],
    "phone" : [ "+1-224-405-2048" ],
    "source" : "https://rdap.arin.net/registry/entity/DSE10-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "DSE9-ARIN",
    "name" : "Sepanski, Dave",
    "email" : [ "davesepanski@discoverfinancial.com" ],
    "phone" : [ "+1-224-405-2048" ],
    "source" : "https://rdap.arin.net/registry/entity/DSE9-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS271253	LINK BRASIL TELECOMUNICACOES LTDA	BR
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US
AS32787	Akamai Technologies, Inc.	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US
AS32787	Akamai Technologies, Inc.	US