Autonomous System details

AS4

University of Southern California  ·  usc.edu

United States

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

AS4 – University of Southern California

Field Value
Country United States
Website usc.edu
Hosted domains 37
IPv4 addresses 64,000
IPv6 addresses 79,230,580,365,903,566,851,893,362,688
ASN type Education
Registry arin
Allocated 42 years ago on Feb 22, 1984
Updated 2 years ago on Sep 29, 2023

IP Ranges

Netblock Company Num of IPs
128.9.192.0/18 University of Southern California 16,384
128.9.0.0/20 University of Southern California 4,096
128.9.32.0/20 University of Southern California 4,096
128.9.48.0/20 University of Southern California 4,096
128.9.64.0/20 University of Southern California 4,096
128.9.80.0/20 University of Southern California 4,096
128.9.96.0/20 University of Southern California 4,096
128.9.112.0/20 University of Southern California 4,096
128.9.128.0/20 University of Southern California 4,096
128.9.144.0/20 University of Southern California 4,096
128.9.160.0/20 University of Southern California 4,096
128.9.176.0/20 University of Southern California 4,096
128.9.28.0/23 University of Southern California 512
128.9.16.0/24 University of Southern California 256
128.9.17.0/24 University of Southern California 256
128.9.18.0/24 University of Southern California 256
128.9.19.0/24 University of Southern California 256
128.9.26.0/24 University of Southern California 256
128.9.30.0/24 University of Southern California 256
128.9.31.0/24 University of Southern California 256
128.9.34.0/24 University of Southern California 256
128.9.35.0/24 University of Southern California 256
128.9.36.0/24 University of Southern California 256
128.9.37.0/24 University of Southern California 256
128.9.38.0/24 University of Southern California 256
128.9.40.0/24 University of Southern California 256
128.9.43.0/24 University of Southern California 256
128.9.44.0/24 University of Southern California 256
128.9.46.0/24 University of Southern California 256
128.9.47.0/24 University of Southern California 256
128.9.113.0/24 University of Southern California 256
128.9.117.0/24 University of Southern California 256
128.9.122.0/24 University of Southern California 256
128.9.123.0/24 University of Southern California 256
128.9.127.0/24 University of Southern California 256
198.32.16.0/24 CyrusOne LLC 256

Netblock Company
2606:d5c0::/32 University of Southern California
2001:500:202::/48 B.Root-Server-OPS
2606:d5c0::/48 University of Southern California
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details

Join for free to view WHOIS details › 

                                                ASHandle:       AS4
                                                OrgID:          AS4
                                                ASName:         AS4
                                                ASNumber:       AS4
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.
IP WHOIS API & Database

Hosted Domains

There are 37 domain names hosted across 15 IP addresses on this ASN.

Join for free to explore hosted domains ›
IP Address Domain Domains on this IP
128.9.37.30 ██████████ 12
128.9.36.15 ██████████ 6
128.9.208.217 ██████████ 3
128.9.36.12 ██████████ 3
128.9.29.23 ██████████ 2
128.9.44.22 ██████████ 2
128.9.29.33 ██████████ 1
128.9.64.109 ██████████ 1
128.9.40.205 ██████████ 1
128.9.28.9 ██████████ 1

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity
Hosted Domains API & Database

Peers

There are 22 peers for this ASN.

Peers Name
AS10886 University of Maryland
AS133296 Web Werks India Pvt. Ltd.
AS14956 RouterHosting LLC
AS150309 E R S TECHNOLOGY
AS150692 Golden Dragon 2000
AS174 Cogent Communications, LLC
AS18450 WebNX, Inc.
AS213186 Yanoor Islam Khan
AS214016 Amarebox LLC
AS22516 Charter Communications LLC
AS226 Los Nettos
AS2635 Automattic, Inc
AS264988 AW Online Ltda
AS29844 Sena Wave LLC
AS30844 Liquid Telecommunications Ltd
AS398091 zx4.com
AS399282 Connext LLC
AS400215 Sambanova Systems, Inc.
AS400536 Nodestop LLC
AS40950 DediByte, LLC
AS4307 SOUTH VALLEY INTERNET
AS567 Los Nettos
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Upstreams

There are 8 upstreams for this ASN.

upstreams Name
AS10886 University of Maryland
AS133296 Web Werks India Pvt. Ltd.
AS174 Cogent Communications, LLC
AS18450 WebNX, Inc.
AS226 Los Nettos
AS264988 AW Online Ltda
AS400215 Sambanova Systems, Inc.
AS567 Los Nettos
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Downstreams

There are 10 downstreams for this ASN.

Downstreams Name
AS14956 RouterHosting LLC
AS213186 Yanoor Islam Khan
AS214016 Amarebox LLC
AS2635 Automattic, Inc
AS29844 Sena Wave LLC
AS398091 zx4.com
AS399282 Connext LLC
AS400536 Nodestop LLC
AS40950 DediByte, LLC
AS4307 SOUTH VALLEY INTERNET
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

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

IP Address ASN Details
128.9.123.31 AS4 University of Southern California 1.20ms from Los Angeles, US
128.9.40.1 AS4 University of Southern California 1.71ms from Los Angeles, US
128.9.46.1 AS4 University of Southern California 1.65ms from Los Angeles, US
128.9.16.1 AS4 University of Southern California 1.17ms from Los Angeles, US
128.9.176.30 AS4 University of Southern California 1.73ms from Los Angeles, US
128.9.112.1 AS4 University of Southern California 1.75ms from Los Angeles, US
128.9.29.128 AS4 University of Southern California 1.04ms from Los Angeles, US
128.9.117.12 AS4 University of Southern California 1.09ms from Los Angeles, US
128.9.48.201 AS4 University of Southern California 2.75ms from Ashburn, US
128.9.26.1 AS4 University of Southern California 1.06ms from Los Angeles, US
128.9.17.1 AS4 University of Southern California 1.70ms from Los Angeles, US
128.9.180.11 AS4 University of Southern California 1.94ms from Los Angeles, US
2606:d5c0::1 AS4 University of Southern California 1.13ms from Los Angeles, US
128.9.160.101 AS4 University of Southern California 1.90ms from Los Angeles, US
128.9.122.239 AS4 University of Southern California 1.08ms from Los Angeles, US
2001:500:202:b2f::1 AS4 University of Southern California 0.93ms from Los Angeles, US
128.9.18.133 AS4 University of Southern California 1.09ms from Los Angeles, US
198.32.16.90 AS4 University of Southern California 1.03ms from Los Angeles, US
128.9.63.146 AS4 University of Southern California 2.65ms from Ashburn, US
128.9.113.214 AS4 University of Southern California 1.08ms from Los Angeles, US
128.9.59.1 AS4 University of Southern California 2.94ms from Ashburn, US
128.9.49.16 AS4 University of Southern California 2.94ms from Ashburn, US
128.9.28.42 AS4 University of Southern California 1.06ms from Los Angeles, US
128.9.127.204 AS4 University of Southern California 1.07ms from Los Angeles, US
128.9.19.1 AS4 University of Southern California 1.21ms from Los Angeles, 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
80.142.143.4 AS3320 Deutsche Telekom AG 2.10ms from Berlin, DE
84.46.153.36 AS136787 PacketHub S.A. 0.08ms from Chicago, US
74.139.220.196 AS10796 Charter Communications Inc 10.20ms from Columbus, US
47.4.34.4 AS20115 Charter Communications LLC 4.64ms from Dallas, US
52.214.0.68 AS16509 Amazon.com, Inc. 0.13ms from Dublin, IE
152.228.199.20 AS16276 OVH SAS 0.06ms from Gravelines, FR
116.102.110.116 AS24086 Viettel Corporation 2.63ms from Ho Chi Minh City, VN
35.142.161.116 AS33363 Charter Communications, Inc 9.69ms from Miami, US
67.255.214.68 AS11351 Charter Communications Inc 18.96ms from New York City, US
52.71.84.212 AS14618 Amazon.com, Inc. 0.19ms from Reston, US
189.245.194.196 AS8151 UNINET 4.53ms from Santiago de Queretaro, MX
125.183.214.132 AS17858 LG POWERCOMM 5.98ms from Seoul, KR
154.243.13.164 AS36947 Telecom Algeria 11.81ms from Algiers, DZ
144.196.179.20 AS13445 Cisco Webex LLC 1.60ms from Amsterdam, NL
52.168.135.164 AS8075 Microsoft Corporation 0.42ms from Ashburn, US
98.179.163.164 AS22773 Cox Communications Inc. 6.11ms from Boston, US
221.8.238.52 AS4837 CHINA UNICOM China169 Backbone 6.40ms from Changchun, CN
35.208.140.116 AS19527 Google LLC 0.13ms from Council Bluffs, US
186.33.59.36 AS52468 UFINET PANAMA S.A. 0.68ms from Curridabat, CR
122.161.32.164 AS24560 Bharti Airtel Ltd., Telemedia Services 2.68ms from Delhi, IN
212.211.203.148 AS12399 q.beyond AG 0.55ms from Frankfurt am Main, DE
94.1.24.20 AS5607 Sky UK Limited 6.02ms from London, GB
81.40.54.244 AS3352 TELEFONICA DE ESPANA S.A.U. 6.69ms from Madrid, ES
189.159.179.132 AS8151 UNINET 3.30ms from Monterrey, MX
123.225.65.196 AS4713 NTT DOCOMO BUSINESS,Inc. 2.92ms 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 -f3 128.9.28.42
traceroute to 128.9.28.42 (128.9.28.42): 64 hops max, 52 byte packets
5 [AS226] 130.152.184.54 1.441 ms
6 [AS4] 128.9.28.42 1.095 ms
Measurement taken from IPinfo ProbeNet in Los Angeles, 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 AS4 at robtex.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs