81.2.136.0/22

FOURTH-UTILITY-CGNT-NET-4 IPv4 United Kingdom ASSIGNED PA AS213671

Registration

RIPE

Range: 81.2.136.0 to 81.2.139.255
CIDR: 81.2.136.0/22
Addresses: 1,024
Net name: FOURTH-UTILITY-CGNT-NET-4
Description: 4TH UTILITY HOLDINGS LIMITED
Holder: Cogent Communications Group LLC ORG-GATI1-RIPE
Status: ASSIGNED PA
Abuse contact: abuse@4thu.co.uk
Last updated: 2026-04-26

Routing

Covered by 81.2.136.0/24 from AS213671 Vision Fibre Media Ltd.. RPKI valid

Covering allocations

Range	Net name	Status
81.2.128.0 - 81.2.191.255	US-COGENT-20020315	ALLOCATED PA

More specific assignments

No smaller assignments inside this range.

WHOIS

inetnum:        81.2.136.0 - 81.2.139.255
netname:        FOURTH-UTILITY-CGNT-NET-4
descr:          4TH UTILITY HOLDINGS LIMITED
country:        GB
status:         ASSIGNED PA
source:         RIPE

organisation:   ORG-GATI1-RIPE
org-name:       Cogent Communications Group LLC
country:        US

role:           4th Utility Abuse
abuse-mailbox:  abuse@4thu.co.uk
nic-hdl:        UA17673-RIPE

Location of the first address

MANCHESTER, United Kingdom

Operator geofeed

Report wrong location

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/network/81.2.136.0/22

const res = await fetch('https://ip-fd.net/api/v1/network/81.2.136.0/22', {
  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/network/81.2.136.0/22', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/network/81.2.136.0/22');
curl_setopt($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/network/81.2.136.0/22", 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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