AS number 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 38
Number of IPv4 1,024
Number of IPv6 0
ASN type Business
Registry arin
Allocated 8 years ago on Apr 03, 2017
Updated 8 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 38 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 ██████████ 19
216.255.101.123 ██████████ 2
216.255.101.237 ██████████ 2
216.255.101.82 ██████████ 1
216.255.101.135 ██████████ 1
216.255.101.174 ██████████ 1

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Peers

There are 2 peers for this ASN.

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

There are 2 upstreams for this ASN.

upstreams Name
AS32787 Akamai Technologies, Inc.
AS46887 Crown Castle Fiber 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
216.255.101.22 AS21821 Montefiore Medical Center 2.56ms from Newark, US
144.121.102.2 AS21821 Montefiore Medical Center 1.90ms from Newark, US
216.255.100.12 AS21821 Montefiore Medical Center 1.88ms 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
81.192.17.61 AS6713 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 3.35ms from Casablanca, MA
84.154.90.93 AS3320 Deutsche Telekom AG 7.87ms from Frankfurt am Main, DE
192.196.200.93 AS15943 wilhelm.tel GmbH 0.50ms from Hamburg, DE
169.231.91.205 AS131 University of California, Santa Barbara 4.32ms from Los Angeles, US
79.27.8.237 AS3269 Telecom Italia S.p.A. 15.77ms from Milan, IT
125.51.185.125 AS2516 KDDI CORPORATION 15.97ms from Osaka, JP
186.220.84.221 AS28573 Claro NXT Telecomunicacoes Ltda 4.78ms from Osasco, BR
129.219.111.157 AS2900 Arizona Tri University Network 1.59ms from Phoenix, US
34.196.200.221 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
13.124.240.109 AS16509 Amazon.com, Inc. 0.16ms from Seoul, KR
180.68.142.141 AS9318 SK Broadband Co Ltd 6.95ms from Seoul, KR
39.118.145.29 AS9318 SK Broadband Co Ltd 1.71ms from Seoul, KR
116.15.123.237 AS3758 SingNet 1.55ms from Singapore, SG
18.178.142.173 AS16509 Amazon.com, Inc. 0.21ms from Tokyo, JP
80.120.0.221 AS8447 A1 Telekom Austria AG 2.58ms from Vienna, AT
83.13.42.173 AS5617 Orange Polska Spolka Akcyjna 5.54ms from Warsaw, PL
94.172.239.141 AS9141 P4 Sp. z o.o. 5.78ms from Warsaw, PL
204.111.254.237 AS4922 Shenandoah Cable Television LLC 4.25ms from Ashburn, US
4.42.40.205 AS3356 Level 3 Parent, LLC 0.37ms from Atlanta, US
37.120.1.253 AS50436 Tele Columbus AG 7.37ms from Berlin, DE
120.203.164.109 AS9808 China Mobile Communications Group Co., Ltd. 13.53ms from Changsha, CN
62.116.204.29 AS31027 GlobalConnect A/S 0.71ms from Copenhagen, DK
97.139.243.157 AS6167 Verizon Business 7.88ms from Denver, US
202.165.41.253 AS17538 PT. Circlecom Nusantara Indonesia 0.56ms from Jakarta, ID
197.245.210.189 AS11845 Vox Telecom Ltd 7.42ms from Johannesburg, ZA

Traceroute

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

$
traceroute -a -n -q1 -f4 144.121.102.240
traceroute to 144.121.102.240 (144.121.102.240): 64 hops max, 52 byte packets
4 [] 187.16.222.2 17.596 ms
5 [AS32787] 23.32.71.155 17.624 ms
6 [AS32787] 114.141.79.94 127.71 ms
7 [AS21821] 144.121.102.240 128.121 ms
Measurement taken from IPinfo ProbeNet in Chapeco, BR
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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