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 16 days 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
128.57.46.0/24 SRI International 256
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
192.5.67.0/24 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
128.18.30.215 ██████████ 12
128.18.241.207 ██████████ 12
128.18.244.59 ██████████ 5
128.18.244.57 ██████████ 3
128.18.241.200 ██████████ 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

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

IP Address ASN Details
192.47.243.189 AS264 SRI International 0.88ms from San Jose, US
128.18.243.44 AS264 SRI International 1.47ms from San Jose, US
192.67.67.85 AS264 SRI International 1.08ms from San Jose, US
192.12.33.30 AS264 SRI International 1.86ms from Santa Clara, US
128.57.46.1 AS264 SRI International 0.91ms from Ashburn, US
128.18.241.31 AS264 SRI International 1.36ms from San Jose, US
192.5.67.26 AS264 SRI International 0.92ms from San Jose, US
192.12.5.4 AS264 SRI International 1.12ms from San Jose, US
128.57.217.10 AS264 SRI International 0.91ms from Piscataway, US
128.57.216.10 AS264 SRI International 0.90ms from Piscataway, US
128.57.62.2 AS264 SRI International 4.44ms from San Jose, US
128.57.92.2 AS264 SRI International 0.87ms from Piscataway, US
128.18.242.174 AS264 SRI International 0.98ms from San Jose, US
128.57.208.52 AS264 SRI International 1.65ms from San Jose, 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
4.157.47.216 AS8075 Microsoft Corporation 0.35ms from Ashburn, US
20.7.106.56 AS8075 Microsoft Corporation 0.31ms from Boydton, US
73.72.19.40 AS7922 Comcast Cable Communications, LLC 7.60ms from Chicago, US
89.194.211.40 AS8011 MongoDB, Inc. 0.12ms from Columbus, US
35.239.213.72 AS396982 Google LLC 0.12ms from Council Bluffs, US
122.159.76.232 AS4837 CHINA UNICOM China169 Backbone 7.06ms from Harbin, CN
122.175.121.136 AS24560 Bharti Airtel Ltd., Telemedia Services 2.05ms from Hyderabad, IN
94.188.239.8 AS198949 Radware Ltd 0.27ms from Johannesburg, ZA
124.94.137.24 AS4837 CHINA UNICOM China169 Backbone 5.04ms from Liaoyang, CN
194.167.140.8 AS2200 Renater 6.26ms from Marseille, FR
116.94.89.40 AS7679 QTnet,Inc. 9.72ms from Osaka, JP
54.158.101.56 AS14618 Amazon.com, Inc. 0.17ms from Reston, US
31.181.252.40 AS12389 PJSC Rostelecom 14.20ms from Tbilisi, GE
180.23.93.248 AS4713 NTT DOCOMO BUSINESS,Inc. 7.34ms from Tokyo, JP
108.32.92.232 AS701 Verizon Business 6.19ms from Ashburn, US
50.5.46.8 AS6181 Cincinnati Bell Telephone Company LLC 1.28ms from Cincinnati, US
163.53.80.168 AS45433 Kappa Internet Services Private Limited 17.44ms from Delhi, IN
18.245.54.232 AS16509 Amazon.com, Inc. 0.30ms from Frankfurt am Main, DE
220.247.138.24 AS64079 China Telecom Global Limited 1.26ms from Hong Kong, HK
117.214.5.8 AS9829 National Internet Backbone 6.02ms from Kolkata, IN
84.239.43.8 AS212238 Datacamp Limited 0.36ms from New York City, US
90.70.12.232 AS3215 Orange S.A. 4.10ms from Paris, FR
165.166.119.184 AS2711 Spirit Communications 0.81ms from Charlotte, US
47.227.251.184 AS33363 Charter Communications, Inc 9.39ms from Chicago, US
173.188.43.120 AS7029 Windstream Communications LLC 11.45ms from Dallas, 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 128.18.131.218
traceroute to 128.18.131.218 (128.18.131.218): 5 hops max, 52 byte packets
1 [AS63023] 38.121.43.1 0.333 ms
3 *
4 *
5 *
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 AS264 at robtex.

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