AS49354 TANGO NETWORKS UK LTD

United Kingdom SIMETRIC RIPE 3 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

1,024

IPv6 /48 networks

RPKI

3 valid0 no ROA

Peers and downstreams

Holder

AS name: SIMETRIC
Description: TANGO NETWORKS UK LTD
Organisation: TANGO NETWORKS UK LTD
Registered in: Leeds, United Kingdom
Abuse contact: abuse@tango-networks.com
Assigned: 2018-06-13
Registered: 2018-06-14
Record last changed: 2018-09-04 12:15 UTC

37.18.128.0/22 37.18.128.0/24 37.18.129.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 70/100

pass	Prefixes covered by valid ROAs 3 of 3 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
fail	Announces IPv6 No IPv6 prefixes are announced.	0/15
pass	More than one upstream 3 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@tango-networks.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
fail	Registry record maintained Last changed 2018-09-04.	0/5

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/49354"><img src="https://ip-fd.net/badge/asn/49354/health.svg" alt="AS49354 network health on IP-FD.net"></a>

Markdown

[![AS49354 network health](https://ip-fd.net/badge/asn/49354/health.svg)](https://ip-fd.net/asn/49354)

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

Routing changes

Last 30 days

2026-10-04 10:59 UTC

Relationship changed

AS43531

upstream to peer

WHOIS

aut-num:        AS49354
as-name:        SIMETRIC
org:            ORG-STL115-RIPE
admin-c:        JM20117-RIPE
tech-c:         JM20117-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         uk-simetric-1-mnt
created:        2018-06-14T13:12:03Z
last-modified:  2018-09-04T12:15:27Z
source:         RIPE
% 4 routing policy lines (import/export) not shown

Routing data

Updated just now

Registry record

Fetched just now from RIPE

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/49354

const res = await fetch('https://ip-fd.net/api/v1/asn/49354', {
  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/49354', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/49354');
curl_setopt($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/49354", 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))

Works without a key at a lower rate. Get a free key.

AS2914	NTT America, Inc. NTT-DATA-2914
AS4455	IX Reach Ltd BSO
AS31216	BSO Network Solutions SAS BSOCOM