Autonomous System details

AS264

SRI International  ·  sri.com

United States

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AS264 – SRI International

Field Value
Country United States
Website sri.com
Hosted domains 91
IPv4 addresses 70,912
IPv6 addresses 0
ASN type Education
Registry arin
Allocated 37 years ago on Jan 23, 1989
Updated 2 months ago on Dec 01, 2025

IP Ranges

Netblock Company Num of IPs
128.18.0.0/16 SRI International 65,536
128.57.128.0/23 SRI International 512
128.57.47.0/24 SRI International 256
128.57.50.0/24 SRI International 256
128.57.60.0/24 SRI International 256
128.57.61.0/24 SRI International 256
128.57.62.0/24 SRI International 256
128.57.89.0/24 SRI International 256
128.57.90.0/24 SRI International 256
128.57.92.0/24 SRI International 256
128.57.93.0/24 SRI International 256
128.57.208.0/24 SRI International 256
128.57.209.0/24 SRI International 256
128.57.216.0/24 SRI International 256
128.57.217.0/24 SRI International 256
192.5.38.0/24 SRI International 256
192.5.67.0/24 SRI International 256
192.12.5.0/24 SRI International 256
192.12.33.0/24 SRI International 256
192.47.243.0/24 SRI International 256
192.67.67.0/24 SRI International 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS264
                                                OrgID:          AS264
                                                ASName:         AS264
                                                ASNumber:       AS264
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 91 domain names hosted across 13 IP addresses on this ASN.

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IP Address Domain Domains on this IP
128.18.244.60 ██████████ 34
128.18.241.227 ██████████ 20
128.18.241.207 ██████████ 12
128.18.30.215 ██████████ 12
128.18.244.59 ██████████ 5
128.18.241.200 ██████████ 3
128.18.244.57 ██████████ 3
128.18.26.22 ██████████ 3
128.18.244.32 ██████████ 2
128.18.93.47 █████████ 2

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Peers

There are 2 peers for this ASN.

Peers Name
AS174 Cogent Communications, LLC
AS6461 Zayo Bandwidth
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS6461 Zayo Bandwidth
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
128.18.241.31 AS264 SRI International 1.41ms from San Jose, US
128.18.242.167 AS264 SRI International 0.99ms from San Jose, US
192.47.243.196 AS264 SRI International 0.86ms from San Jose, US
128.57.92.2 AS264 SRI International 0.90ms from Piscataway, US
128.18.243.44 AS264 SRI International 1.55ms from San Jose, US
192.67.67.85 AS264 SRI International 1.21ms from San Jose, US
128.57.217.10 AS264 SRI International 0.87ms from Piscataway, US
128.57.208.52 AS264 SRI International 1.68ms from San Jose, US
192.5.67.115 AS264 SRI International 0.93ms from San Jose, US
128.57.62.2 AS264 SRI International 4.39ms from San Jose, US
192.12.5.4 AS264 SRI International 1.16ms from San Jose, US
128.57.216.10 AS264 SRI International 0.82ms from Piscataway, 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
181.86.109.168 AS7303 Telecom Argentina S.A. 1.94ms from Buenos Aires, AR
86.175.198.200 AS2856 British Telecommunications PLC 4.14ms from Erith, GB
122.252.214.56 AS38133 CMB 4.24ms from Incheon, KR
211.201.136.136 AS9318 SK Broadband Co Ltd 1.66ms from Incheon, KR
42.191.155.136 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 5.93ms from Kuala Lumpur, MY
4.188.2.120 AS8075 Microsoft Corporation 0.13ms from Lohogaon, IN
23.44.159.8 AS9299 Philippine Long Distance Telephone Company 0.09ms from Manila, PH
173.62.111.248 AS701 Verizon Business 3.03ms from New York City, US
212.184.124.104 AS3320 Deutsche Telekom AG 0.88ms from Nuernberg, DE
4.228.192.40 AS8075 Microsoft Corporation 0.18ms from Sao Paulo, BR
203.166.142.88 AS10031 WEBSATMEDIA PTE LTD, Satellite Over IP, Singapore 1.00ms from Singapore, SG
18.177.119.40 AS16509 Amazon.com, Inc. 1.22ms from Tokyo, JP
81.240.184.24 AS5432 Proximus NV 3.49ms from Brussels, BE
191.84.27.72 AS22927 Telefonica de Argentina 1.66ms from Buenos Aires, AR
113.206.251.184 AS4837 CHINA UNICOM China169 Backbone 1.94ms from Chongqing, CN
65.28.102.104 AS11427 Charter Communications Inc 18.84ms from Dallas, US
91.2.205.56 AS3320 Deutsche Telekom AG 2.56ms from Duesseldorf, DE
158.174.65.232 AS8473 Bahnhof AB 4.60ms from Falkenberg, SE
23.3.108.40 AS16625 Akamai Technologies, Inc. 0.20ms from Frankfurt am Main, DE
109.145.160.40 AS2856 British Telecommunications PLC 9.24ms from London, GB
20.26.203.40 AS8075 Microsoft Corporation 0.23ms from London, GB
98.61.216.104 AS7922 Comcast Cable Communications, LLC 6.77ms from Minneapolis, US
45.52.29.248 AS5650 Frontier Communications of America, Inc. 8.38ms from New York City, US
207.195.222.200 AS25720 Honeycomb Internet Services 0.27ms from Toronto, CA
173.185.69.72 AS7029 Windstream Communications LLC 6.50ms from Ashburn, US

Traceroute

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

$
traceroute -a -n -q1 -m5 128.18.72.18
traceroute to 128.18.72.18 (128.18.72.18): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Asuncion, PY
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 AS264 at robtex.

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