AS25751 Conversant, Inc.

United States VALUECLICK ARIN 11 IPv4 prefixes 7 IPv6 prefixes

IPv4 addresses

3,328

IPv6 /48 networks

RPKI

0 valid18 no ROA

Peers and downstreams

Holder

AS name: VALUECLICK
Description: Conversant, Inc.
Organisation: Conversant, Inc.
Abuse contact: Not published
Assigned: 2002-04-30
Registered: 2002-05-01
Record last changed: 2026-06-05 18:55 UTC

159.127.40.0/23 159.127.42.0/23 205.180.85.0/24 205.180.86.0/24 205.180.87.0/24 216.34.207.0/24 216.48.66.0/24 64.156.167.0/24 64.70.54.0/24 67.72.99.0/24 8.18.45.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 65/100

fail	Prefixes covered by valid ROAs 0 of 18 announced prefixes are RPKI valid, 18 have no ROA.	0/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 7 IPv6 prefixes.	15/15
pass	More than one upstream 4 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@valueclick.com is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
pass	Registry record maintained Last changed 2026-06-05.	5/5

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/25751"><img src="https://ip-fd.net/badge/asn/25751/health.svg" alt="AS25751 network health on IP-FD.net"></a>

Markdown

[![AS25751 network health](https://ip-fd.net/badge/asn/25751/health.svg)](https://ip-fd.net/asn/25751)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS25751
as-name:        VALUECLICK
handle:         AS25751
registrant:     VALUEC-5 (Conversant, Inc.)
noc:            NOC31950-ARIN (Network Operations Center) <network@conversantmedia.com>
technical:      GUFFE26-ARIN (Curtis Guffee) <curtis.guffee@epsilon.com>
abuse:          CAD52-ARIN (Conversant Abuse Desk) <abuse@valueclick.com>
last changed:   2026-06-05T14:55:43-04:00
registration:   2002-05-01T00:00:00-04:00
source:         ARIN (RDAP)

Routing data

Updated 23 h ago

Registry record

Fetched 23 h ago from ARIN RDAP

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/25751

const res = await fetch('https://ip-fd.net/api/v1/asn/25751', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/25751', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/25751');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/25751", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

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