38.21.203.0/24

AS40934 · Fortinet Inc.

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Summary

Country	United States
Domain	fortinet.com
ASN	AS40934
Parent Range	38.0.0.0/8
Registry	RWHOIS
ID	NET4-2615C00014

WHOIS Details

No whois details available for this network

Overlapping Ranges

BGP prefixes that contain 38.21.203.0/24

Range	ASN	Company	Num of IPs
38.0.0.0/8	AS174	Cogent Communications, LLC	16,777,216
38.0.0.0/8	AS273110	Cogent Communications, LLC	16,777,216
38.0.0.0/8	AS400371	Cogent Communications, LLC	16,777,216
38.0.0.0/8	AS7029	Cogent Communications, LLC	16,777,216

Nearby Ranges

BGP prefixes that overlap with 38.21.0.0/16

Range	ASN	Company	Num of IPs
38.0.0.0/8	AS400371	Cogent Communications, LLC	16,777,216
38.0.0.0/8	AS273110	Cogent Communications, LLC	16,777,216
38.0.0.0/8	AS174	Cogent Communications, LLC	16,777,216
38.0.0.0/8	AS7029	Cogent Communications, LLC	16,777,216
38.21.224.0/19	AS15153	StarVision, Inc.	8,192
38.21.144.0/20	AS55140	Sho Me Technologies, LLC	4,096
38.21.80.0/20	AS262231	COOPERATIVA ELECTRICA Y DE SERVICIOS MARIANO MORENO LIMITADA	4,096
38.21.160.0/20	AS40545	Empire Access	4,096
38.21.208.0/20	AS40545	Empire Access	4,096
38.21.32.0/21	AS395795	ATLINK SERVICES, LLC	2,048
38.21.56.0/21	AS13692	Douglas FastNet	2,048
38.21.72.0/21	AS263699	Cablevideo Digital S.A	2,048
38.21.128.0/21	AS11738	BLIP Networks	2,048
38.21.184.0/21	AS397545	Purple Cow Internet Inc	2,048
38.21.48.0/21	AS398721	OXIO	2,048
38.21.40.0/21	AS40545	Empire Access	2,048
38.21.71.0/24	AS29119	Mas IP, S.L.	256
38.21.70.0/24	AS209240	ISA NET Sh.p.k.	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
38.21.203.49	AS40934 Fortinet Inc.	`0.14ms` 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
81.242.110.88	AS5432 Proximus NV	`3.68ms` from Brussels, BE
136.0.4.56	AS400402 Hosting Bot, LLC	`0.15ms` from Dallas, US
94.204.175.8	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.42ms` from Dubai, AE
80.171.228.152	AS6805 Telefonica Germany GmbH & Co.OHG	`2.96ms` from Duesseldorf, DE
172.104.138.232	AS63949 Akamai Connected Cloud	`0.13ms` from Frankfurt am Main, DE
188.74.219.120	AS9009 M247 Europe SRL	`0.12ms` from Frankfurt am Main, DE
116.148.140.232	AS4837 CHINA UNICOM China169 Backbone	`10.21ms` from Hangzhou, CN
42.243.250.136	AS4134 CHINANET-BACKBONE	`10.28ms` from Kunming, CN
104.224.85.168	AS21769 Colocation America Corporation	`0.16ms` from Los Angeles, US
190.102.104.120	AS29802 HIVELOCITY, Inc.	`0.27ms` from Los Angeles, US
81.46.247.72	AS16371 acens AS	`1.86ms` from Madrid, ES
217.57.160.72	AS3269 Telecom Italia S.p.A.	`4.00ms` from Milan, IT
200.182.84.200	AS4230 CLARO S.A.	`0.70ms` from Sao Paulo, BR
106.244.65.136	AS3786 LG DACOM Corporation	`2.19ms` from Seoul, KR
44.226.132.24	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
203.23.118.72	AS9268 Over The Wire Pty Ltd	`0.48ms` from Brisbane, AU
149.160.162.40	AS27198 Indiana University	`6.84ms` from Chicago, US
67.173.122.24	AS7922 Comcast Cable Communications, LLC	`4.99ms` from Chicago, US
201.132.200.88	AS13999 Mega Cable, S.A. de C.V.	`12.27ms` from Guadalajara, MX
154.220.90.232	AS135097 LUOGELANG (FRANCE) LIMITED	`0.53ms` from Hong Kong, HK
46.26.181.248	AS12430 VODAFONE ESPANA S.A.U.	`13.79ms` from Madrid, ES
4.198.146.88	AS8075 Microsoft Corporation	`0.52ms` from Melbourne, AU
120.225.198.248	AS24444 Shandong Mobile Communication Company Limited	`8.14ms` from Qingdao, CN
112.251.213.200	AS4837 CHINA UNICOM China169 Backbone	`8.10ms` from Qingdao, CN
114.206.232.24	AS9318 SK Broadband Co Ltd	`5.80ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f5 38.21.203.216

traceroute to 38.21.203.216 (38.21.203.216): 64 hops max, 52 byte packets

5 [AS6939] 184.104.188.100 159.423 ms

6 *

7 *

8 *

9 [AS40934] 208.184.237.20 223.847 ms

10 *

11 [AS40934] 38.21.203.216 225.052 ms

Measurement taken from

IPinfo ProbeNet in Lagos, NG

On November 28th 2025

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.

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