Autonomous System details

AS21821

Montefiore Medical Center  ·  montefiore.org

United States

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AS21821 – Montefiore Medical Center

Field Value
Country United States
Website montefiore.org
Hosted domains 39
IPv4 addresses 1,024
IPv6 addresses 0
ASN type Business
Registry arin
Allocated 9 years ago on Apr 03, 2017
Updated 9 years ago on Apr 03, 2017

IP Ranges

Netblock Company Num of IPs
144.121.102.0/24 Montefiore Medicine Academic Health System, Inc. 256
144.121.104.0/24 Montefiore Medicine Academic Health System, Inc. 256
216.255.100.0/24 Montefiore Medical Center 256
216.255.101.0/24 Montefiore Medical Center 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS21821
                                                OrgID:          AS21821
                                                ASName:         AS21821
                                                ASNumber:       AS21821
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 39 domain names hosted across 7 IP addresses on this ASN.

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IP Address Domain Domains on this IP
216.255.101.81 ██████████ 16
144.121.102.111 ██████████ 16
216.255.101.237 ██████████ 2
216.255.101.123 ██████████ 2
216.255.101.135 ██████████ 1
216.255.101.82 ██████████ 1
216.255.101.174 ██████████ 1

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Peers

There are 3 peers for this ASN.

Peers Name
AS32787 Akamai Technologies, Inc.
AS46887 Crown Castle Fiber LLC
AS54004 Cablevision Lightpath LLC
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS32787 Akamai Technologies, Inc.
AS46887 Crown Castle Fiber LLC
AS54004 Cablevision Lightpath LLC
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

3 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
216.255.101.191 AS21821 Montefiore Medical Center 3.03ms from New York City, US
144.121.102.2 AS21821 Montefiore Medical Center 2.27ms from New York City, US
216.255.100.12 AS21821 Montefiore Medical Center 2.27ms from New York City, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
65.181.120.45 AS211912 WHG Hosting Services Ltd 0.30ms from Ashburn, US
85.209.239.253 AS211109 CRS Liknoss Monoprosopi SA 1.84ms from Athens, GR
220.227.68.221 AS18101 Reliance Communications Ltd.DAKC MUMBAI 13.35ms from Bengaluru, IN
71.241.216.13 AS13977 Fidium 3.27ms from Boston, US
46.5.86.189 AS3209 Vodafone GmbH 10.08ms from Frankfurt am Main, DE
14.187.138.237 AS45899 VNPT Corp 1.24ms from Ho Chi Minh City, VN
115.72.130.109 AS7552 Viettel Group 3.29ms from Ho Chi Minh City, VN
98.130.97.141 AS16509 Amazon.com, Inc. 1.32ms from Hyderabad, IN
103.145.218.45 AS132641 PT Netciti Persada 0.49ms from Jakarta, ID
131.111.7.237 AS786 Jisc Services Limited 2.27ms from London, GB
79.25.91.61 AS3269 Telecom Italia S.p.A. 2.45ms from Milan, IT
67.23.238.93 AS33182 HostDime.com, Inc. 0.31ms from Orlando, US
13.71.97.125 AS8075 Microsoft Corporation 0.32ms from Saint Thomas Mount, IN
172.244.38.157 AS7922 Comcast Cable Communications, LLC 3.78ms from San Jose, US
98.143.89.221 AS19171 Stargate Connections Inc. 3.28ms from Seattle, US
112.173.62.29 AS4766 Korea Telecom 8.40ms from Seoul, KR
60.116.143.77 AS17676 SoftBank Corp. 2.66ms from Tokyo, JP
92.97.81.221 AS5384 Emirates Internet 3.51ms from Al Fujairah City, AE
44.251.253.13 AS16509 Amazon.com, Inc. 0.59ms from Boardman, US
195.249.180.157 AS3292 TDC Holding A/S 0.77ms from Copenhagen, DK
188.178.194.141 AS3292 TDC Holding A/S 1.15ms from Copenhagen, DK
113.255.18.125 AS9304 HGC Global Communications Limited 1.31ms from Hong Kong, HK
137.222.250.237 AS786 Jisc Services Limited 5.64ms from London, GB
24.199.27.61 AS20001 Charter Communications Inc 3.17ms from Los Angeles, US
213.249.220.29 AS12390 KCOM Group Limited 3.18ms from Manchester, GB

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f5 -m13 144.121.104.85
traceroute to 144.121.104.85 (144.121.104.85): 13 hops max, 52 byte packets
5 [] 198.32.160.74 2.019 ms
6 [AS32787] 23.57.110.25 1.889 ms
10 [AS21821] 144.121.102.4 3.781 ms
11 *
12 *
13 *
Measurement taken from IPinfo ProbeNet in Piscataway, US
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS21821 at robtex.

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