Autonomous System details

AS20

University of Rochester  ·  rochester.edu

United States

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AS20 – University of Rochester

Field Value
Country United States
Website rochester.edu
Hosted domains 190
IPv4 addresses 66,048
IPv6 addresses 309,485,009,821,345,068,724,781,056
ASN type Education
Registry arin
Allocated 41 years ago on Jul 27, 1984
Updated 6 years ago on Oct 01, 2019

IP Ranges

Netblock Company Num of IPs
128.151.0.0/16 University of Rochester 65,536
192.5.53.0/24 University of Rochester 256
199.89.214.0/24 University of Rochester 256
Netblock Company
2620:107:a000::/40 University of Rochester
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WHOIS Details

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                                                ASHandle:       AS20
                                                OrgID:          AS20
                                                ASName:         AS20
                                                ASNumber:       AS20
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 190 domain names hosted across 43 IP addresses on this ASN.

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IP Address Domain Domains on this IP
128.151.156.30 ██████████ 98
128.151.156.72 ██████████ 73
128.151.77.39 ██████████ 17
128.151.156.56 █████████ 11
128.151.146.30 ██████████ 8
128.151.77.220 ██████████ 4
128.151.77.133 ██████████ 4
128.151.146.92 ██████████ 3
128.151.10.50 ██████████ 3
128.151.167.201 ██████████ 3

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Peers

There are 4 peers for this ASN.

Peers Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
AS3630 NYSERNet
AS3754 NYSERNet
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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
128.151.77.39 AS20 University of Rochester 5.41ms from Toronto, CA
199.89.214.241 AS20 University of Rochester 4.42ms from Toronto, CA
128.151.157.11 AS20 University of Rochester 5.56ms from Toronto, CA
2620:107:a01c:1::2 AS20 University of Rochester 5.20ms from Toronto, CA
128.151.2.17 AS20 University of Rochester 4.33ms from Toronto, CA
128.151.172.65 AS20 University of Rochester 4.61ms from Toronto, CA
2620:107:a008:2::1 AS20 University of Rochester 5.01ms from Toronto, CA
128.151.254.18 AS20 University of Rochester 4.51ms from Toronto, CA
2620:107:a010:2::3 AS20 University of Rochester 4.72ms from Toronto, CA
128.151.146.86 AS20 University of Rochester 4.51ms from Toronto, CA
2620:107:a014:2::3 AS20 University of Rochester 4.66ms from Toronto, CA
128.151.71.73 AS20 University of Rochester 4.33ms from Toronto, CA
128.151.8.11 AS20 University of Rochester 5.65ms from Toronto, CA
128.151.5.10 AS20 University of Rochester 4.32ms from Toronto, CA
128.151.152.17 AS20 University of Rochester 5.42ms from Toronto, CA
128.151.156.87 AS20 University of Rochester 4.54ms from Toronto, CA
2620:107:a000:10::1 AS20 University of Rochester 4.50ms from Toronto, CA
128.151.99.82 AS20 University of Rochester 4.46ms from Toronto, CA
128.151.7.12 AS20 University of Rochester 4.68ms from Toronto, CA
128.151.10.50 AS20 University of Rochester 4.57ms from Toronto, CA

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
38.118.10.4 AS174 Cogent Communications, LLC 0.88ms from Ashburn, US
23.96.88.68 AS8075 Microsoft Corporation 0.43ms from Ashburn, US
93.186.75.36 AS200923 SAMOSTALNA RADNJA ZA TELEKOMUNIKACIJE EWIRELESS IGOR STOJKOVIC PR INDIJA 4.28ms from Belgrade, RS
177.235.46.52 AS28573 Claro NXT Telecomunicacoes Ltda 4.04ms from Brasilia, BR
107.134.23.196 AS7018 AT&T Enterprises, LLC 5.33ms from Durham, US
3.122.246.4 AS16509 Amazon.com, Inc. 0.48ms from Frankfurt am Main, DE
39.45.154.52 AS17557 Pakistan Telecommunication Company Limited 8.05ms from Islamabad, PK
113.237.166.84 AS4837 CHINA UNICOM China169 Backbone 9.67ms from Liaoyang, CN
85.169.43.68 AS15557 Societe Francaise Du Radiotelephone - SFR SA 12.31ms from Lyon, FR
36.234.96.244 AS3462 Data Communication Business Group 1.65ms from Taichung, TW
91.244.205.100 AS210489 Beyond Relationship Marketing GmbH 1.54ms from Amsterdam, NL
134.222.55.4 AS3257 GTT Communications Inc. 0.95ms from Amsterdam, NL
201.177.77.20 AS22927 Telefonica de Argentina 2.65ms from Buenos Aires, AR
216.117.170.132 AS10843 Advanced Internet Technologies 0.18ms from Fayetteville, US
38.181.171.20 AS135357 HONG KONG KOWLOON TELECOMMUNICATIONS CO.,LIMITED 0.98ms from Hong Kong, HK
118.139.74.84 AS56132 Monash University, 6.87ms from Melbourne, AU
34.93.233.180 AS396982 Google LLC 0.08ms from Mumbai, IN
88.100.161.196 AS5610 O2 Czech Republic, a.s. 7.38ms from Prague, CZ
76.158.144.52 AS7922 Comcast Cable Communications, LLC 6.80ms from San Jose, US
205.144.52.244 AS13919 ADS Alliance Data Systems, Inc. 2.39ms from Secaucus, US
220.144.98.228 AS2518 BIGLOBE Inc. 8.99ms from Tokyo, JP
58.11.80.116 AS17552 True Online 2.26ms from Bangkok, TH
34.223.234.244 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
89.160.242.84 AS12969 Vodafone Iceland 1.46ms from Hafnarfjoerdur, IS
84.242.16.68 AS15943 wilhelm.tel GmbH 0.46ms from Hamburg, DE

Traceroute

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

$
traceroute -a -n -q1 -f3 -m8 128.151.131.173
traceroute to 128.151.131.173 (128.151.131.173): 8 hops max, 52 byte packets
3 [AS3356] 4.69.141.137 87.681 ms
4 [AS3356] 4.39.194.50 89.302 ms
5 [AS20] 128.151.254.30 89.53 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
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 AS20 at robtex.

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