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
128.151.172.65 AS20 University of Rochester 4.59ms from Toronto, CA
2620:107:a014:2::3 AS20 University of Rochester 4.83ms from Toronto, CA
128.151.146.86 AS20 University of Rochester 4.58ms from Toronto, CA
128.151.10.224 AS20 University of Rochester 4.61ms from Toronto, CA
2620:107:a01c:1::2 AS20 University of Rochester 5.23ms from Toronto, CA
128.151.5.10 AS20 University of Rochester 4.31ms from Toronto, CA
128.151.71.72 AS20 University of Rochester 4.32ms from Toronto, CA
128.151.8.222 AS20 University of Rochester 5.67ms from Toronto, CA
128.151.254.18 AS20 University of Rochester 4.51ms from Toronto, CA
128.151.157.72 AS20 University of Rochester 5.61ms from Toronto, CA
128.151.77.39 AS20 University of Rochester 5.41ms from Toronto, CA
128.151.2.17 AS20 University of Rochester 4.42ms from Toronto, CA
128.151.7.12 AS20 University of Rochester 4.75ms from Toronto, CA
2620:107:a010:2::3 AS20 University of Rochester 4.71ms from Toronto, CA
2620:107:a008:2::2 AS20 University of Rochester 5.07ms from Toronto, CA
128.151.156.69 AS20 University of Rochester 4.51ms from Toronto, CA
128.151.99.1 AS20 University of Rochester 4.47ms from Toronto, CA
128.151.152.17 AS20 University of Rochester 5.46ms from Toronto, CA
199.89.214.241 AS20 University of Rochester 4.45ms from Toronto, CA
2620:107:a000:8::1 AS20 University of Rochester 4.55ms 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
91.126.218.20 AS35699 Adamo Telecom Iberia S.A. 1.13ms from Barcelona, ES
117.196.2.180 AS9829 National Internet Backbone 13.78ms from Bengaluru, IN
197.52.80.116 AS8452 TE-AS 5.36ms from Cairo, EG
113.0.96.36 AS4837 CHINA UNICOM China169 Backbone 10.08ms from Changchun, CN
70.114.92.244 AS11427 Charter Communications Inc 6.21ms from Dallas, US
122.163.67.148 AS24560 Bharti Airtel Ltd., Telemedia Services 1.65ms from Kolkata, IN
24.165.91.100 AS20001 Charter Communications Inc 5.44ms from Los Angeles, US
92.176.241.116 AS12479 Orange Espagne SA 12.91ms from Madrid, ES
159.26.112.68 AS208172 Proton AG 0.35ms from Marseille, FR
184.147.150.84 AS577 Bell Canada 3.60ms from Montreal, CA
4.251.123.132 AS8075 Microsoft Corporation 0.35ms from Paris, FR
175.118.210.212 AS9318 SK Broadband Co Ltd 6.26ms from Seoul, KR
113.212.121.4 AS45294 PT. Wanriau Indoxp 7.71ms from Singapore, SG
23.46.114.212 AS16625 Akamai Technologies, Inc. 0.18ms from Stockholm, SE
219.114.189.228 AS9605 NTT DOCOMO, INC. 9.14ms from Tokyo, JP
41.42.201.196 AS8452 TE-AS 5.10ms from Cairo, EG
1.59.180.100 AS4837 CHINA UNICOM China169 Backbone 11.12ms from Changchun, CN
96.27.225.212 AS12083 WideOpenWest Finance LLC 11.01ms from Chicago, US
185.178.233.4 AS208864 Weserve B.V. 0.32ms from Dronten, NL
1.64.72.68 AS4760 HKT Limited 4.91ms from Hong Kong, HK
185.216.114.100 AS49126 IHS Kurumsal Teknoloji Hizmetleri A.S 3.73ms from Istanbul, TR
95.148.59.68 AS2856 British Telecommunications PLC 3.92ms from London, GB
178.94.254.164 AS2914 NTT America, Inc. 0.25ms from Los Angeles, US
75.206.110.244 AS6167 Verizon Business 15.67ms from Miami, US
150.100.250.20 AS2907 Research Organization of Information and Systems, National Institute of Informatics 1.09ms 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 -f2 -m6 128.151.138.49
traceroute to 128.151.138.49 (128.151.138.49): 6 hops max, 52 byte packets
3 [AS37084] 155.12.1.225 0.597 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Dar es Salaam, TZ
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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