AS264

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Summary

IP address summary information
Name	SRI International
Country	United States
Website	host.io/sri.com·sri.com
Hosted domains	62
IPv4 addresses	75,008
IPv6 addresses	0
ASN type	Education
Registry	ARIN
Allocated	37 years ago on Jan 23, 1989
Updated	11 months ago on Dec 1, 2025

Ranking

#39,122

Overall rank

among 75,217 networks

Traffic

#35,632

Infrastructure

#13,149

#6,752inUnited States

Learn how ASN rankings work

Geolocation

Share of IPv4 footprint per hexagonLessMore

Countries by IPv4 share

United States
100%

Held location over 90 days: 98%
Held location over 1 year: 99%
Median days between moves: 22 days
Geolocation scope: National

How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.

Activity

A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.

Mon

Connectivity

upstreams

This network

downstreams

Cogent Communications, LLCAS174 · #7 Zayo BandwidthAS6461 · #48

AS264SRI International

No downstreams listed

Transit-free network
Upstream link
Downstream link

Neighbours by global rank

Log scale. The dashed line marks this network.

Top 100

Top 1,000

#10

#100

#1k

#10k

#75k

unranked

Upstreams2

Peers3

Downstreams0

none listed

AS264 #39,122

Upstream
Peer
Downstream
Unranked

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

IP Ranges

WHOIS


  ASHandle:       █████
  OrgID:          █████
  ASName:         ██████
  ASNumber:       AS█████
  RegDate:        ████-██-██
  Updated:        ████-██-██
  TechHandle:     ████-████
  Source:         ████

Hosted Domains

There are 62 domain names hosted across 10 IP addresses on this ASN.

IP Address	Domain	Count
128.18.241.227		20
128.18.30.215		12
128.18.244.60		10
128.18.241.207		9
128.18.244.59		5

Places

IPs in this network linked to physical places, based on their Wi-Fi networks.

Places IPs1
Business Services1

Category	In AS264	Example IP
Business Services	1	128.57.47.200

New

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Places

Peers

There are 3 peers for this ASN.

ASN	Name	Rank
AS174	Cogent Communications, LLC
AS1239	Cogent Communications, LLC
AS6461	Zayo Bandwidth

Upstreams

There are 2 upstreams for this ASN.

ASN	Name	Rank
AS174	Cogent Communications, LLC
AS6461	Zayo Bandwidth

Downstreams

There are 0 downstreams for this ASN.

No downstreams found.

Pingable IPs

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

IP Address	ASN	Details
192.5.67.78 Ping	AS264SRI International	0.90ms from San Jose, US
128.57.92.2 Ping	AS264SRI International	0.84ms from Piscataway, US
192.5.38.4 Ping	AS264SRI International	0.91ms from Ashburn, US
128.18.242.167 Ping	AS264SRI International	1.04ms from San Jose, US
128.57.216.10 Ping	AS264SRI International	0.84ms from Piscataway, US
128.57.62.2 Ping	AS264SRI International	4.32ms from San Jose, US
128.57.208.52 Ping	AS264SRI International	2.07ms from San Jose, US
128.57.217.10 Ping	AS264SRI International	0.89ms from Piscataway, US
128.18.243.12 Ping	AS264SRI International	1.14ms from San Jose, US
192.67.67.85 Ping	AS264SRI International	1.05ms from San Jose, US

Other Pingable IPs

IP Address	ASN	Details

Pingable IPs

Important routers in AS264


128.18.241.1	San Jose, United States
192.67.67.254	San Jose, United States
192.67.67.249	San Jose, United States
128.57.92.5	New York City, United States
128.18.241.16	San Jose, United States
128.18.241.254	San Jose, United States
128.18.241.24	Menlo Park, United States

Important routers in AS264

Traceroute

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

$ traceroute -a -n -q1 -m4 128.18.214.27

traceroute to 128.18.214.27 (128.18.214.27): 4 hops max, 52 byte packets

1 [AS150075] 103.169.86.1 0.467 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Indore, IN

On November 5, 2026

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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AS264

Summary

Ranking