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 191
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 191 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
128.151.77.220 ██████████ 4
128.151.77.133 ██████████ 4
128.151.167.201 ██████████ 3
128.151.146.92 ██████████ 3
128.151.77.235 ██████████ 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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ASN API & Database

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
128.151.8.222 AS20 University of Rochester 5.69ms from Toronto, CA
2620:107:a01c:2::1 AS20 University of Rochester 5.03ms from Toronto, CA
2620:107:a008:2::1 AS20 University of Rochester 5.01ms from Toronto, CA
128.151.77.39 AS20 University of Rochester 5.38ms from Toronto, CA
128.151.99.1 AS20 University of Rochester 4.49ms from Toronto, CA
128.151.156.104 AS20 University of Rochester 4.50ms from Toronto, CA
2620:107:a010:2::3 AS20 University of Rochester 4.69ms from Toronto, CA
128.151.10.224 AS20 University of Rochester 4.54ms from Toronto, CA
128.151.254.18 AS20 University of Rochester 4.47ms from Toronto, CA
128.151.157.67 AS20 University of Rochester 5.58ms from Toronto, CA
128.151.172.65 AS20 University of Rochester 4.59ms from Toronto, CA
128.151.71.73 AS20 University of Rochester 4.34ms from Toronto, CA
2620:107:a000:6::2 AS20 University of Rochester 4.48ms from Toronto, CA
128.151.7.12 AS20 University of Rochester 4.70ms from Toronto, CA
128.151.146.58 AS20 University of Rochester 4.58ms from Toronto, CA
128.151.2.17 AS20 University of Rochester 4.38ms from Toronto, CA
199.89.214.117 AS20 University of Rochester 4.49ms from Toronto, CA
128.151.5.10 AS20 University of Rochester 4.29ms from Toronto, CA
128.151.152.17 AS20 University of Rochester 5.62ms from Toronto, CA
2620:107:a014:2::3 AS20 University of Rochester 4.74ms 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
3.170.145.132 AS16509 Amazon.com, Inc. 0.82ms from Chicago, US
20.196.2.132 AS8075 Microsoft Corporation 1.06ms from Dubai, AE
52.214.0.84 AS16509 Amazon.com, Inc. 0.23ms from Dublin, IE
3.70.81.116 AS16509 Amazon.com, Inc. 0.17ms from Frankfurt am Main, DE
84.162.27.132 AS3320 Deutsche Telekom AG 5.80ms from Frankfurt am Main, DE
14.249.119.68 AS45899 VNPT Corp 3.42ms from Hanoi, VN
195.231.55.4 AS31034 Aruba S.p.A. 1.10ms from Milan, IT
211.107.176.36 AS4766 Korea Telecom 5.43ms from Seoul, KR
8.132.84.36 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.30ms from Shanghai, CN
114.156.171.4 AS4713 NTT DOCOMO BUSINESS,Inc. 19.01ms from Tokyo, JP
2.176.200.52 AS58224 Iran Telecommunication Company PJS 15.41ms from Yerevan, AM
77.162.107.164 AS1136 KPN B.V. 1.07ms from Amsterdam, NL
51.144.18.212 AS8075 Microsoft Corporation 0.21ms from Amsterdam, NL
79.103.155.68 AS1241 Forthnet 13.80ms from Athens, GR
172.102.172.164 AS25853 Ellijay Telephone Company 5.31ms from Atlanta, US
46.107.139.148 AS5483 Magyar Telekom Plc. 6.65ms from Budapest, HU
166.78.40.116 AS33070 Rackspace Hosting 0.85ms from Dallas, US
103.41.116.100 AS55991 CNNIC ASN block 4.81ms from Hangzhou, CN
66.8.154.52 AS20001 Charter Communications Inc 10.37ms from Honolulu, US
204.14.79.228 AS53356 Free Range Cloud Hosting Inc. 0.31ms from Kansas City, US
81.129.200.180 AS2856 British Telecommunications PLC 6.85ms from London, GB
166.1.143.20 AS62240 Clouvider 0.21ms from London, GB
187.25.243.20 AS22085 Claro S/A 14.92ms from Rio de Janeiro, BR
61.171.51.132 AS4811 China Telecom (Group) 3.29ms from Shanghai, CN
99.86.193.132 AS16509 Amazon.com, Inc. 0.41ms from Tokyo, JP

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 128.151.94.26
traceroute to 128.151.94.26 (128.151.94.26): 9 hops max, 52 byte packets
4 [AS3356] 4.69.214.218 111.302 ms
5 [AS3356] 4.39.194.50 109.517 ms
6 [AS20] 128.151.254.30 117.313 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Ljubljana, SI
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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