ASN AS25751 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS25751?

AS25751 is listed under Conversant, Inc..

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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AS25751 Conversant, Inc. | IPGeolocation.io

Conversant, Inc. conversantmedia.com

US 8 Routes

AS Data

AS25751

AS25751 – Conversant, Inc.

AS Number	25751
AS Name	VALUECLICK
Organization	Conversant, Inc. (valuec-5)
Country	US
Website	conversantmedia.com
Number of IPv4 Routes	5
Number of IPv6 Routes	3
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2002-05-01

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Use ASN data for AS25751 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
64.156.167.0/24	AS25751	Conversant, Inc.	Conversant, Inc.	256
205.180.87.0/24	AS25751	Conversant, Inc.	FastClick	256
159.127.40.0/23	AS25751	Conversant, Inc.	Conversant, LLC	512
205.180.86.0/24	AS25751	Conversant, Inc.	FastClick	256
2606:ae80:1c10::/44	AS25751	Conversant, Inc.	Conversant, LLC	~19×10²⁴
64.70.54.0/24	AS25751	Conversant, Inc.	CenturyLink Communications, LLC	256
2606:ae80:1410::/44	AS25751	Conversant, Inc.	Conversant, LLC	~19×10²⁴
2606:ae80:1c40::/44	AS25751	Conversant, Inc.	Conversant, LLC	~19×10²⁴

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:       25751
ASName:         VALUECLICK
ASHandle:       AS25751
RegDate:        2002-05-01
Updated:        2026-06-05
Ref:            https://rdap.arin.net/registry/autnum/25751


OrgName:        Conversant, Inc.
OrgId:          VALUEC-5
Address:        7500 DALLAS PKWY
City:           PLANO
StateProv:      TX
PostalCode:     75024
Country:        US
RegDate:        2002-05-01
Updated:        2026-06-05
Ref:            https://rdap.arin.net/registry/entity/VALUEC-5


OrgTechHandle: GUFFE26-ARIN
OrgTechName:   Guffee, Curtis 
OrgTechPhone:  +1-818-575-4738 
OrgTechEmail:  curtis.guffee@epsilon.com
OrgTechRef:    https://rdap.arin.net/registry/entity/GUFFE26-ARIN

OrgAbuseHandle: CAD59-ARIN
OrgAbuseName:   Conversant Abuse Desk
OrgAbusePhone:  +1-818-475-4500 
OrgAbuseEmail:  abuse@conversantmedia.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CAD59-ARIN

OrgNOCHandle: NOC31950-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-818-575-4581 
OrgNOCEmail:  network@conversantmedia.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC31950-ARIN

RTechHandle: GUFFE26-ARIN
RTechName:   Guffee, Curtis 
RTechPhone:  +1-818-575-4738 
RTechEmail:  curtis.guffee@epsilon.com
RTechRef:    https://rdap.arin.net/registry/entity/GUFFE26-ARIN

RNOCHandle: NOC31950-ARIN
RNOCName:   Network Operations Center
RNOCPhone:  +1-818-575-4581 
RNOCEmail:  network@conversantmedia.com
RNOCRef:    https://rdap.arin.net/registry/entity/NOC31950-ARIN

RAbuseHandle: CAD52-ARIN
RAbuseName:   Conversant Abuse Desk
RAbusePhone:  +1-818-575-4500 
RAbuseEmail:  abuse@valueclick.com
RAbuseRef:    https://rdap.arin.net/registry/entity/CAD52-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" : "25751",
    "as_handle" : "AS25751",
    "as_name" : "VALUECLICK",
    "tech_contacts" : [ "GUFFE26-ARIN", "GUFFE26-ARIN" ],
    "abuse_contacts" : [ "CAD59-ARIN", "CAD52-ARIN" ],
    "date_created" : "2002-05-01",
    "date_updated" : "2026-06-05",
    "source" : "https://rdap.arin.net/registry/autnum/25751"
  } ],
  "organization" : {
    "handle" : "VALUEC-5",
    "name" : "Conversant, Inc.",
    "address" : [ "7500 DALLAS PKWY", "PLANO", "TX", "75024", "US" ],
    "street" : "Dallas Pkwy",
    "city" : "Plano",
    "state" : "TX",
    "zip_code" : "75024",
    "country" : [ "US" ],
    "date_created" : "2002-05-01",
    "date_updated" : "2026-06-05",
    "source" : "https://rdap.arin.net/registry/entity/VALUEC-5",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "GUFFE26-ARIN",
    "name" : "Guffee, Curtis",
    "email" : [ "curtis.guffee@epsilon.com" ],
    "phone" : [ "+1-818-575-4738" ],
    "source" : "https://rdap.arin.net/registry/entity/GUFFE26-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "CAD59-ARIN",
    "name" : "Conversant Abuse Desk",
    "email" : [ "abuse@conversantmedia.com" ],
    "phone" : [ "+1-818-475-4500" ],
    "source" : "https://rdap.arin.net/registry/entity/CAD59-ARIN"
  }, {
    "handle" : "CAD52-ARIN",
    "name" : "Conversant Abuse Desk",
    "email" : [ "abuse@valueclick.com" ],
    "phone" : [ "+1-818-575-4500" ],
    "source" : "https://rdap.arin.net/registry/entity/CAD52-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS58511	Anycast Global Backbone	AU
AS24482	SG.GS	SG
AS57695	Misaka Network, Inc.	US
AS7195	EDGEUNO S.A.S	CO
AS45701	PT. Internet Madju Abad Milenindo	ID
AS52320	GlobeNet Cabos Submarinos Colombia, S.A.S.	CO
AS3737	PenTeleData Inc.	US
AS6939	Hurricane Electric LLC	US
AS6204	ZET.NET IP Transit	RO
AS4826	Vocus Connect International Backbone	AU
AS2914	NTT America, Inc.	US
AS14537	Continent 8 LLC	US
AS60171	AFR-IX TELECOM S.A.	ES
AS199524	G-Core Labs S.A.	LU
AS60171	AFR IX TELECOM S.A.	ES
AS11039	The George Washington University	US
AS36236	NetActuate, Inc	US
AS18106	Viewqwest Pte Ltd	SG
AS4455	IX Reach Ltd	GB
AS16276	OVH SAS	FR
AS19754	The Fusion Network, LLC	US
AS3223	Voxility LLP	GB
AS6461	Zayo Bandwidth	US
AS38195	Superloop	AU
AS16552	Tiggee LLC	US
AS8220	COLT Technology Services Group Limited	GB
AS37721	Virtual Technologies & Solutions	BF
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	NL
AS32590	Valve Corporation	US
AS19653	CTS Communications Corp	US
AS19009	OneCleveland	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS199524	G Core Labs S.A.	LU
AS399337	Netcrawler Inc	CA
AS19151	BroadbandONE, LLC	US
AS13786	Seabras 1 USA, LLC	US
AS19684	Latigo, LLC	US
AS35280	F5 Networks SARL	FR
AS21559	OSNET	PR
AS40271	San Francisco Metropolitan Internet Exchange (SFMIX)	US
AS29838	Atlantic Metro Communications II, Inc.	US
AS6204	INTERKVM HOST SRL	RO
AS1828	Unitas Global	US
AS19834	Conversant, LLC	US
AS3356	Level 3 Parent, LLC	US
AS137409	GSL Networks Pty LTD	AU
AS4181	TDS TELECOM	US
AS49544	i3D.net B.V	NL

Upstreams

AS Number	Description	Country
AS13786	Seabras 1 USA, LLC	US
AS7195	EDGEUNO S.A.S	CO
AS60171	AFR IX TELECOM S.A.	ES
AS6204	ZET.NET IP Transit	RO
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS19834	Conversant, LLC	US
AS2914	NTT America, Inc.	US
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US
AS137409	GSL Networks Pty LTD	AU

Downstreams

AS Number	Description	Country
AS19834	Conversant, LLC	US

Contacts

Email Contacts

curtis.guffee@epsilon.com

Abuse Contacts

abuse@conversantmedia.com

Legacy Routes

2606:ae80:1450::/44 159.127.42.0/23 2606:ae80:1c20::/44 216.48.66.0/24 8.18.45.0/24 2606:ae80:1470::/44 205.180.85.0/24 67.72.99.0/24 216.34.207.0/24 2606:ae80:1472::/47

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