AS number details

AS55

University of Pennsylvania  ·  upenn.edu

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AS55 – University of Pennsylvania

Field Value
Country United States
Website upenn.edu
Hosted domains 128
Number of IPv4 262,400
Number of IPv6 79,228,162,514,264,337,593,543,950,336
ASN type Education
Registry arin
Allocated 40 years ago on Dec 18, 1985
Updated 4 years ago on Oct 14, 2021
Netblock Company Num of IPs
128.91.0.0/16 University of Pennsylvania 65,536
130.91.0.0/16 University of Pennsylvania 65,536
158.130.0.0/16 University of Pennsylvania 65,536
165.123.0.0/16 University of Pennsylvania 65,536
192.84.2.0/24 University of Pennsylvania 256
Netblock Company
2607:f470::/32 University of Pennsylvania
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WHOIS Details


                                                ASHandle:       AS55
                                                OrgID:          AS55
                                                ASName:         AS55
                                                ASNumber:       AS55
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are 128 domain names hosted across 61 IP addresses on this ASN.

IP Address Domain Domains on this IP
158.130.67.172 ████████ 13
128.91.205.39 ██████████ 9
158.130.68.91 ██████████ 7
128.91.204.164 ██████████ 7
158.130.69.163 ██████████ 6
128.91.205.29 ██████████ 5
128.91.58.234 ██████████ 5
128.91.58.202 ██████████ 4
128.91.252.43 ██████████ 4
130.91.39.11 ██████████ 3

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Peers

There are 6 peers for this ASN.

Peers Name
AS11164 Internet2
AS11537 Internet2
AS174 Cogent Communications
AS3356 Level 3 Parent, LLC
AS46274 Penn Medicine
AS69 University of Pennsylvania
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS11164 Internet2
AS174 Cogent Communications
AS3356 Level 3 Parent, LLC
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Downstreams

There are 2 downstreams for this ASN.

Downstreams Name
AS46274 Penn Medicine
AS69 University of Pennsylvania
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Pingable IPs

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

IP Address ASN Details
130.91.120.17 AS55 University of Pennsylvania 3.41ms from New York City, US
128.91.50.130 AS55 University of Pennsylvania 3.51ms from New York City, US
2607:f470:16:1001::1 AS55 University of Pennsylvania 4.40ms from New York City, US
130.91.16.47 AS55 University of Pennsylvania 3.58ms from New York City, US
128.91.120.146 AS55 University of Pennsylvania 3.61ms from New York City, US
128.91.107.162 AS55 University of Pennsylvania 3.48ms from New York City, US
130.91.193.61 AS55 University of Pennsylvania 3.51ms from New York City, US
130.91.195.99 AS55 University of Pennsylvania 3.47ms from New York City, US
128.91.18.1 AS55 University of Pennsylvania 3.35ms from New York City, US
165.123.102.62 AS55 University of Pennsylvania 3.72ms from New York City, US
128.91.42.89 AS55 University of Pennsylvania 3.65ms from New York City, US
130.91.109.137 AS55 University of Pennsylvania 3.54ms from New York City, US
158.130.23.9 AS55 University of Pennsylvania 3.78ms from New York City, US
165.123.98.1 AS55 University of Pennsylvania 3.93ms from New York City, US
128.91.227.23 AS55 University of Pennsylvania 3.59ms from New York City, US
128.91.211.248 AS55 University of Pennsylvania 3.51ms from New York City, US
128.91.137.19 AS55 University of Pennsylvania 3.37ms from New York City, US
165.123.66.211 AS55 University of Pennsylvania 3.44ms from New York City, US
130.91.68.136 AS55 University of Pennsylvania 3.62ms from New York City, US
130.91.82.40 AS55 University of Pennsylvania 3.50ms from New York City, US
165.123.174.233 AS55 University of Pennsylvania 3.38ms from New York City, US
130.91.116.101 AS55 University of Pennsylvania 3.63ms from New York City, US
130.91.48.1 AS55 University of Pennsylvania 3.79ms from New York City, US
130.91.206.8 AS55 University of Pennsylvania 3.43ms from New York City, US
128.91.113.27 AS55 University of Pennsylvania 3.42ms from New York City, 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
41.189.187.23 AS30986 Scancom Limited 10.67ms from Accra, GH
85.75.201.39 AS6799 Ote SA (Hellenic Telecommunications Organisation) 8.98ms from Athens, GR
68.207.91.119 AS33363 Charter Communications, Inc 16.63ms from Atlanta, US
9.169.154.103 AS8075 Microsoft Corporation 0.33ms from Boydton, US
69.245.179.7 AS7922 Comcast Cable Communications, LLC 4.56ms from Chicago, US
18.197.193.167 AS16509 Amazon.com, Inc. 0.13ms from Frankfurt am Main, DE
3.124.46.167 AS16509 Amazon.com, Inc. 0.16ms from Frankfurt am Main, DE
81.156.241.247 AS2856 British Telecommunications PLC 1.89ms from London, GB
82.45.114.39 AS5089 Virgin Media Limited 14.27ms from London, GB
51.9.164.231 AS6871 Plusnet 5.71ms from London, GB
66.229.101.199 AS7922 Comcast Cable Communications, LLC 9.61ms from Miami, US
106.172.167.215 AS2516 KDDI CORPORATION 9.38ms from Osaka, JP
201.182.86.71 AS265799 EXPERTSERVI S.A. 6.57ms from Quito, EC
178.64.5.23 AS12389 PJSC Rostelecom 1.57ms from Saint Petersburg, RU
134.186.169.151 AS1226 California Department of Technology 3.41ms from Santa Clara, US
43.155.162.215 AS132203 Tencent Building, Kejizhongyi Avenue 0.91ms from Seoul, KR
211.225.46.103 AS4766 Korea Telecom 3.35ms from Seoul, KR
175.192.95.23 AS4766 Korea Telecom 1.43ms from Seoul, KR
109.57.70.39 AS44034 Hi3G Access AB 9.52ms from Skanderborg, DK
84.40.87.199 AS8866 Vivacom Bulgaria EAD 0.74ms from Sofia, BG
23.58.207.7 AS16625 Akamai Technologies, Inc. 0.70ms from Stockholm, SE
109.172.200.119 AS16010 Magticom Ltd. 0.57ms from Tbilisi, GE
79.115.247.119 AS8708 DIGI ROMANIA S.A. 1.48ms from Timisoara, RO
36.6.144.199 AS4134 CHINANET-BACKBONE 14.28ms from Wuhan, CN
171.22.16.231 AS215540 GLOBAL CONNECTIVITY SOLUTIONS LLP 0.28ms from Zuerich, CH

Traceroute

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

$
traceroute -a -n -q1 -m12 128.91.123.52
traceroute to 128.91.123.52 (128.91.123.52): 12 hops max, 52 byte packets
1 [AS63023] 38.121.43.1 0.295 ms
3 [AS6461] 64.125.29.152 13.154 ms
4 *
5 *
6 [] 162.252.69.102 12.959 ms
7 *
8 *
9 [AS55] 128.91.238.217 16.698 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Atlanta, US
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 AS55 at robtex.

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