38.0.0.0/8

AS273301SIZATEK SPECTRUM

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Summary

IP address summary information
Country	United States
Domain	host.io/cogentco.com·cogentco.com
ASN	AS273301 — SIZATEK SPECTRUM Also announced by AS174 — Cogent Communications, LLC
Registry	ARIN
ID	COGENT-A

WHOIS


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

Overlapping Ranges

BGP prefixes that are contained by 38.0.0.0/8

Range	ASN	Company	Num of IPs
38.98.137.0/24	AS36539	PEAK6 CAPITAL MANAGEMENT, LLC	256
38.58.109.0/24	AS132139	VECLOUD LIMITED	256
38.97.45.0/24	AS36671	Two Sigma Investments, LP	256
38.117.134.0/24	AS36671	Two Sigma Investments, LP	256
38.108.14.0/24	AS36671	TWO SIGMA INVESTMENTS, LP	256
38.27.161.0/24	AS36671	Two Sigma Investments, LP	256
38.124.160.0/24	AS36716	Morgan and Morgan, PA	256
38.113.121.0/24	AS36737	Enformion, LLC	256
38.107.71.0/24	AS36776	Five9 Inc.	256
38.133.134.0/24	AS36833	DV Trading, LLC	256

Overlapping Ranges

Nearby Ranges

No nearby ranges found.

Nearby Ranges

Hosted Domains

There are 2,215,329 domain names hosted across 323,147 IP addresses on this range.

IP Address	Domain	Count
38.88.82.220		3,869
38.64.166.13		1,767
38.190.187.101		735
38.88.82.216		712
38.88.82.62		688

Pingable IPs

2,138,604 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more

IP Address	ASN	Details
38.32.204.130 Ping	AS174Cogent Communications, LLC	0.27ms from Ashburn, US
38.32.161.161 Ping	AS174Cogent Communications, LLC	0.56ms from Ashburn, US
38.32.35.33 Ping	AS174Cogent Communications, LLC	0.85ms from Boston, US
38.30.208.154 Ping	AS55201SkyQuantum Internet Service	0.23ms from Fremont, US
38.32.32.98 Ping	AS174Cogent Communications, LLC	1.07ms from New York City, US
38.32.42.81 Ping	AS174Cogent Communications, LLC	0.57ms from New York City, US
38.32.107.61 Ping	AS174Cogent Communications, LLC	0.18ms from Ashburn, US
38.32.38.38 Ping	AS174Cogent Communications, LLC	0.39ms from Chicago, US
38.30.233.141 Ping	AS55201SkyQuantum Internet Service	0.24ms from Fremont, US
38.31.255.253 Ping	AS150008Pioneer Elabs Ltd.	1.69ms from Hyderabad, IN

Other Pingable IPs

IP Address	ASN	Details

Pingable IPs

Important routers in AS273301 / 38.0.0.0/8

Traceroute

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

$ traceroute -a -n -q1 -f3 38.40.94.1

traceroute to 38.40.94.1 (38.40.94.1): 64 hops max, 52 byte packets

3 [] 206.123.7.36 0.28 ms

4 [AS400194] 38.40.94.1 2.116 ms

Measurement taken from

IPinfo ProbeNet in Jacksonville, US

On August 7, 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

38.0.0.0/8

Summary

WHOIS

Overlapping Ranges

Overlapping Ranges

Nearby Ranges

Nearby Ranges

Hosted Domains

Pingable IPs

Other Pingable IPs

Pingable IPs

Important routers in AS273301 / 38.0.0.0/8

Traceroute

What are IP address ranges?

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Overlapping Ranges

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