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 ██████████ 17
144.121.102.111 ██████████ 15
216.255.101.237 ██████████ 2
216.255.101.123 ██████████ 2
216.255.101.174 ██████████ 1
216.255.101.82 ██████████ 1
216.255.101.135 ██████████ 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
144.121.102.6 AS21821 Montefiore Medical Center 2.26ms from Newark, US
216.255.101.22 AS21821 Montefiore Medical Center 2.76ms from Newark, US
216.255.100.12 AS21821 Montefiore Medical Center 2.12ms from Newark, 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
41.223.239.253 AS36947 Telecom Algeria 6.72ms from Algiers, DZ
98.166.22.45 AS22773 Cox Communications Inc. 9.28ms from Ashburn, US
207.239.136.189 AS2828 Verizon Business 4.83ms from Ashburn, US
15.248.41.157 AS16509 Amazon.com, Inc. 0.32ms from Boardman, US
105.197.209.45 AS24835 Vodafone Data 11.62ms from Cairo, EG
103.22.143.173 AS134674 TATA PLAY BROADBAND PRIVATE LIMITED 5.31ms from Delhi, IN
186.225.54.221 AS28368 SOBRALNET SERVICOS E TELECOMUNICACOES LTDA - ME 0.62ms from Fortaleza, BR
14.182.90.205 AS45899 VNPT Corp 3.97ms from Hanoi, VN
14.228.111.173 AS45899 VNPT Corp 2.84ms from Hanoi, VN
195.224.213.109 AS5413 Wavenet Limited 2.53ms from London, GB
15.168.170.13 AS16509 Amazon.com, Inc. 0.67ms from Osaka, JP
18.235.3.205 AS14618 Amazon.com, Inc. 0.18ms from Reston, US
107.154.67.13 AS19551 Incapsula Inc 0.63ms from Rio de Janeiro, BR
128.187.11.125 AS6510 Brigham Young University 2.16ms from Salt Lake City, US
5.139.24.93 AS12389 PJSC Rostelecom 15.14ms from Samara, RU
71.92.235.13 AS395888 Anderson ZurMuehlen & Co., P.C. 13.22ms from Seattle, US
209.58.166.93 AS59253 LEASEWEB SINGAPORE PTE. LTD. 0.61ms from Singapore, SG
24.171.46.205 AS20115 Charter Communications LLC 6.59ms from St. Louis, US
221.103.222.45 AS17676 SoftBank Corp. 2.92ms from Tokyo, JP
99.225.202.125 AS812 Rogers Communications Canada Inc. 5.60ms from Toronto, CA
83.136.117.45 AS12389 PJSC Rostelecom 5.79ms from Yekaterinburg, RU
145.53.164.109 AS1136 KPN B.V. 1.60ms from Amsterdam, NL
129.41.171.205 AS2002 Kyndryl 0.28ms from Ashburn, US
158.108.92.253 AS9411 Kasetsart University, Thailand 1.25ms from Bangkok, TH
108.49.121.253 AS701 Verizon Business 1.83ms from Boston, US

Traceroute

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

$
traceroute -a -n -q1 -f5 -m16 144.121.104.149
traceroute to 144.121.104.149 (144.121.104.149): 16 hops max, 52 byte packets
6 *
7 *
8 *
9 *
10 [AS32787] 114.141.79.94 70.368 ms
11 [AS21821] 144.121.102.4 70.02 ms
12 [AS21821] 144.121.102.2 69.268 ms
13 [AS21821] 144.121.102.4 70.023 ms
14 *
15 *
16 *
Measurement taken from IPinfo ProbeNet in Panama, PA
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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