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 193
IPv4 addresses 66,048
IPv6 addresses 309,485,009,821,345,068,724,781,056
ASN type Education
Registry arin
Allocated 42 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 193 domain names hosted across 42 IP addresses on this ASN.

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IP Address Domain Domains on this IP
128.151.156.30 ██████████ 101
128.151.156.72 ██████████ 73
128.151.77.39 ██████████ 17
128.151.156.56 ██████████ 11
128.151.146.30 ██████████ 8
128.151.77.133 ██████████ 4
128.151.77.220 ██████████ 4
128.151.167.201 ██████████ 3
128.151.146.92 ██████████ 3
128.151.77.111 ██████████ 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
128.151.254.29 AS20 University of Rochester 4.51ms from Toronto, CA
128.151.152.17 AS20 University of Rochester 5.73ms from Toronto, CA
128.151.99.65 AS20 University of Rochester 4.46ms from Toronto, CA
128.151.2.17 AS20 University of Rochester 4.32ms from Toronto, CA
2620:107:a014:2::3 AS20 University of Rochester 4.71ms from Toronto, CA
128.151.77.39 AS20 University of Rochester 5.36ms from Toronto, CA
128.151.71.72 AS20 University of Rochester 4.32ms from Toronto, CA
128.151.146.58 AS20 University of Rochester 4.49ms from Toronto, CA
128.151.156.91 AS20 University of Rochester 4.51ms from Toronto, CA
199.89.214.241 AS20 University of Rochester 4.43ms from Toronto, CA
2620:107:a000:8::1 AS20 University of Rochester 4.54ms from Toronto, CA
128.151.157.62 AS20 University of Rochester 5.59ms from Toronto, CA
2620:107:a010:2::3 AS20 University of Rochester 4.76ms from Toronto, CA
128.151.5.10 AS20 University of Rochester 4.29ms from Toronto, CA
128.151.8.11 AS20 University of Rochester 5.66ms from Toronto, CA
128.151.172.65 AS20 University of Rochester 4.53ms from Toronto, CA
128.151.10.140 AS20 University of Rochester 4.58ms from Toronto, CA
128.151.7.12 AS20 University of Rochester 4.70ms from Toronto, CA
2620:107:a01c:1::2 AS20 University of Rochester 5.17ms from Toronto, CA
2620:107:a008:2::1 AS20 University of Rochester 4.97ms 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
161.30.125.164 AS31515 Inmarsat Global Limited 0.41ms from Amsterdam, NL
23.109.236.212 AS7979 Servers.com, Inc. 0.13ms from Amsterdam, NL
173.188.198.196 AS7029 Windstream Communications LLC 9.45ms from Atlanta, US
76.19.64.36 AS7922 Comcast Cable Communications, LLC 9.60ms from Boston, US
84.2.10.244 AS5483 Magyar Telekom Plc. 6.72ms from Budapest, HU
96.191.77.196 AS53297 Comcast Cable Communications, LLC 0.05ms from Chicago, US
47.219.111.68 AS19108 Optimum 10.05ms from Dallas, US
20.84.158.228 AS8075 Microsoft Corporation 0.31ms from Des Moines, US
185.93.196.36 AS200852 Gulf Digital Media Model LLC 0.42ms from Dubai, AE
185.125.51.4 AS28753 Leaseweb Deutschland GmbH 0.49ms from Frankfurt am Main, DE
24.116.213.132 AS11492 CABLE ONE, INC. 6.04ms from Kansas City, US
98.164.19.84 AS22773 Cox Communications Inc. 7.57ms from Kansas City, US
86.3.89.52 AS5089 Virgin Media Limited 6.99ms from London, GB
130.185.69.116 AS5413 Wavenet Limited 1.74ms from London, GB
185.230.46.4 AS204957 GREEN FLOID LLC 0.56ms from Miami, US
5.99.218.68 AS3269 Telecom Italia S.p.A. 1.39ms from Naples, IT
138.197.14.36 AS14061 DigitalOcean, LLC 0.42ms from New York City, US
119.230.226.180 AS17511 OPTAGE Inc. 2.03ms from Osaka, JP
39.78.104.164 AS4837 CHINA UNICOM China169 Backbone 6.64ms from Qingdao, CN
191.178.220.36 AS28573 Claro NXT Telecomunicacoes Ltda 1.56ms from Sao Paulo, BR
64.190.24.212 AS11696 Fusion, LLC 0.91ms from Secaucus, US
101.23.54.52 AS4837 CHINA UNICOM China169 Backbone 9.79ms from Beijing, CN
3.128.38.36 AS16509 Amazon.com, Inc. 0.18ms from Columbus, US
109.59.183.4 AS44034 Hi3G Access AB 6.18ms from Copenhagen, DK
72.249.125.4 AS55045 TekTonic 0.53ms from Dallas, US

Traceroute

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

$
traceroute -a -n -q1 -f4 -m9 128.151.34.125
traceroute to 128.151.34.125 (128.151.34.125): 9 hops max, 52 byte packets
4 [AS3356] 4.69.141.137 86.343 ms
5 [AS3356] 4.39.194.50 84.971 ms
6 [AS20] 128.151.254.30 85.119 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Coventry, GB
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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