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 15 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
128.18.241.200 ██████████ 3
128.18.26.22 ██████████ 3
128.18.244.57 ██████████ 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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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS6461 Zayo Bandwidth
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ASN API & Database

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
128.57.208.52 AS264 SRI International 1.66ms from San Jose, US
128.57.217.10 AS264 SRI International 0.82ms from Piscataway, US
192.12.33.30 AS264 SRI International 1.39ms from San Jose, US
192.12.5.4 AS264 SRI International 1.10ms from San Jose, US
128.57.216.10 AS264 SRI International 0.88ms from Piscataway, US
128.57.46.1 AS264 SRI International 1.29ms from Ashburn, US
192.47.243.196 AS264 SRI International 0.88ms from San Jose, US
128.57.62.1 AS264 SRI International 4.40ms from San Jose, US
192.67.67.85 AS264 SRI International 1.14ms from San Jose, US
128.18.241.31 AS264 SRI International 1.38ms from San Jose, US
192.5.67.52 AS264 SRI International 0.95ms from San Jose, US
128.57.92.1 AS264 SRI International 0.83ms from Piscataway, US
128.18.243.44 AS264 SRI International 1.49ms from San Jose, US
128.18.242.174 AS264 SRI International 1.03ms 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
221.217.55.136 AS4808 China Unicom Beijing Province Network 4.13ms from Beijing, CN
35.210.20.24 AS15169 Google LLC 0.14ms from Brussels, BE
41.232.156.120 AS8452 TE-AS 4.32ms from Cairo, EG
97.119.162.56 AS209 CenturyLink Communications, LLC 10.52ms from Chicago, US
52.51.244.232 AS16509 Amazon.com, Inc. 0.17ms from Dublin, IE
81.90.29.104 AS215540 GLOBAL CONNECTIVITY SOLUTIONS LLP 0.09ms from Kerkrade, NL
153.202.31.8 AS4713 NTT DOCOMO BUSINESS,Inc. 5.23ms from Osaka, JP
119.175.10.200 AS9824 JCOM Co., Ltd. 19.21ms from Osaka, JP
125.8.15.136 AS9824 JCOM Co., Ltd. 8.76ms from Osaka, JP
3.223.172.56 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
117.196.81.200 AS9829 National Internet Backbone 18.50ms from Saint Thomas Mount, IN
52.235.133.24 AS8075 Microsoft Corporation 19.34ms from San Antonio, US
187.191.91.200 AS19373 Triara.com S.A. de C.V. 1.24ms from Santiago de Queretaro, MX
2.71.49.232 AS44034 Hi3G Access AB 7.23ms from Stockholm, SE
1.141.204.248 AS1221 Telstra Limited 3.28ms from Sydney, AU
1.165.154.184 AS3462 Data Communication Business Group 2.35ms from Taichung, TW
172.64.214.24 AS13335 Cloudflare, Inc. 0.38ms from Tokyo, JP
178.119.105.152 AS6848 Telenet BV 7.49ms from Brussels, BE
105.76.7.56 AS36884 Wana Corporate 11.56ms from Casablanca, MA
109.123.10.232 AS58056 siaIT d.o.o. 6.10ms from Ljubljana, SI
18.175.162.104 AS16509 Amazon.com, Inc. 0.57ms from London, GB
31.120.8.200 AS2856 British Telecommunications PLC 2.70ms from London, GB
81.100.125.168 AS5089 Virgin Media Limited 12.05ms from London, GB
187.227.133.152 AS8151 UNINET 10.63ms from Santiago de Queretaro, MX
191.183.112.248 AS28573 Claro NXT Telecomunicacoes Ltda 3.22ms from Sao Paulo, BR

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 128.18.153.121
traceroute to 128.18.153.121 (128.18.153.121): 7 hops max, 52 byte packets
3 [AS9002] 87.245.234.139 32.096 ms
4 [AS9002] 87.245.230.53 28.25 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Gdynia, PL
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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