AS1239 Cogent Communications, LLC

United States AS1239 ARIN 0 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

IPv6 /48 networks

RPKI

0 valid0 no ROA

Peers and downstreams

Holder

AS name: AS1239
Description: SprintLink Global Network
Organisation: Cogent Communications, LLC
Abuse contact: Not published
Assigned: 1991-03-24
Registered: 1991-03-25
Record last changed: 2025-12-23 15:12 UTC

None announced.

Routing changes

Last 30 days

2026-10-04 04:47 UTC	Neighbour gone	AS61568	downstream
2026-10-04 04:47 UTC	Neighbour gone	AS18734	downstream
2026-10-04 04:47 UTC	New neighbour	AS11432	downstream

WHOIS

aut-num:        AS1239
as-name:        COGENT-1239
handle:         AS1239
registrant:     COGC (Cogent Communications, LLC)
last changed:   2025-12-23T10:12:52-05:00
registration:   1991-03-25T00:00:00-05:00
source:         ARIN (RDAP)

Routing data

Updated just now

Registry record

Fetched just now 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/1239

const res = await fetch('https://ip-fd.net/api/v1/asn/1239', {
  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/1239', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/1239');
curl_setopt($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/1239", 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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