AS55209 Hackensack University Medical Center

United States AS-HMHH ARIN 4 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

1,024

IPv6 /48 networks

RPKI

3 valid1 no ROA

Peers and downstreams

Holder

AS name: AS-HMHH
Description: 499 Thornall Street Edison NJ 08837 United States
Organisation: Hackensack University Medical Center
Abuse contact: Not published
Assigned: 2013-04-21
Registered: 2013-04-22
Record last changed: 2013-04-22 19:52 UTC

198.148.152.0/24 198.148.153.0/24 24.38.86.0/24 8.27.78.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 64/100

partly	Prefixes covered by valid ROAs 3 of 4 announced prefixes are RPKI valid, 1 have no ROA.	19/25
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 2 upstreams seen in BGP.	10/10
pass	Working abuse contact dennis.torre@hmhn.org 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 2013-04-22.	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/55209"><img src="https://ip-fd.net/badge/asn/55209/health.svg" alt="AS55209 network health on IP-FD.net"></a>

Markdown

[![AS55209 network health](https://ip-fd.net/badge/asn/55209/health.svg)](https://ip-fd.net/asn/55209)

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

Routing changes

Last 30 days

2026-10-04 11:15 UTC	Neighbour gone	AS7018	upstream
2026-10-04 11:15 UTC	Relationship changed	AS1436	upstream to peer

WHOIS

aut-num:        AS55209
as-name:        HACKENSACKUMC
handle:         AS55209
registrant:     HUMC-4 (Hackensack University Medical Center)
abuse,administrative,technical,dns,routing:TORRE7-ARIN (Dennis Torre) <dennis.torre@hmhn.org>
noc,technical,abuse:NETWO7121-ARIN (Network Engineering) <dgitnetworkengineering@hmhn.org>
technical,dns,abuse,noc,routing:HAESL-ARIN (John Haesloop) <john.haesloop@hmhn.org>
last changed:   2013-04-22T15:52:40-04:00
registration:   2013-04-22T15:52:40-04:00
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/55209

const res = await fetch('https://ip-fd.net/api/v1/asn/55209', {
  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/55209', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/55209');
curl_setopt($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/55209", 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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