205.251.120.0/21

AS29838 · Atlantic Metro Communications II, Inc.

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Summary

Country	United States
Domain
ASN	AS29838
Parent Range	205.251.0.0/17
Registry	ARIN
ID	NET-205-251-120-0-1

WHOIS Details

NetHandle:      NET-205-251-120-0-1
OrgID:          C10930291
Parent:         NET-205-251-0-0-1
NetName:        NET-205-251-120-0-1
NetRange:       205.251.120.0 - 205.251.120.255
NetType:        reassignment
RegDate:        2024-08-16
Updated:        2024-08-16
Source:         ARIN


OrgID:          C10930291
OrgName:        Flex Data Center, LLC.
CanAllocate:    
Street:         11513 Sunset Hills Road
City:           Reston
State/Prov:     VA
Country:        US
PostalCode:     20190
RegDate:        2024-08-16
Updated:        2024-08-16
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 205.251.120.0/21

Range	ASN	Company	Num of IPs
205.251.0.0/17	AS29838	Atlantic Metro Communications II, Inc.	32,768

BGP prefixes that are contained by 205.251.120.0/21

Range	ASN	Company	Num of IPs
205.251.120.0/24	AS29838	Flex Data Center, LLC.	256
205.251.124.0/24	AS29838	Information Strategies, Inc.	256

Nearby Ranges

BGP prefixes that overlap with 205.251.0.0/16

Range	ASN	Company	Num of IPs
205.251.0.0/17	AS29838	Atlantic Metro Communications II, Inc.	32,768
205.251.192.0/18	AS16509	Amazon.com, Inc.	16,384
205.251.192.0/18	AS8987	Amazon.com, Inc.	16,384
205.251.176.0/20	AS12129	123.Net, Inc.	4,096
205.251.160.0/20	AS16617	CISP	4,096
205.251.132.0/22	AS834	Internet Utilities NA LLC	1,024
205.251.196.0/23	AS16509	Amazon Data Services Northern Virginia	512
205.251.114.0/23	AS29838	Netacom	512
205.251.66.0/23	AS29838	InfoRelay Online Systems, Inc.	512
205.251.114.0/23	AS29934	Netacom	512
205.251.130.0/23	AS834	Internet Utilities NA LLC	512
205.251.163.0/24	AS16617	Service Spring	256
205.251.168.0/24	AS16617	Aktion-Associates INC	256
205.251.162.0/24	AS16617	Toast.Net	256
205.251.18.0/24	AS399232	Seton Home Study School	256
205.251.120.0/24	AS29838	Flex Data Center, LLC.	256
205.251.124.0/24	AS29838	Information Strategies, Inc.	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
205.251.122.94	dncm.gov.gn	1

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

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

IP Address	ASN	Details
205.251.127.133	AS29838 Atlantic Metro Communications II, Inc.	`0.44ms` from Los Angeles, US
205.251.126.134	AS29838 Atlantic Metro Communications II, Inc.	`0.39ms` from Chicago, US
205.251.122.67	AS29838 Atlantic Metro Communications II, Inc.	`0.57ms` from Ashburn, US
205.251.124.3	AS29838 Atlantic Metro Communications II, Inc.	`0.63ms` from Ashburn, US
205.251.121.2	AS29838 Atlantic Metro Communications II, Inc.	`0.61ms` from Ashburn, US
205.251.120.1	AS29838 Atlantic Metro Communications II, Inc.	`0.73ms` from Ashburn, 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
186.17.12.197	AS23201 Telecel S.A.	`16.37ms` from Asuncion, PY
96.38.64.69	AS20115 Charter Communications LLC	`16.21ms` from Atlanta, US
121.18.65.133	AS4837 CHINA UNICOM China169 Backbone	`8.92ms` from Beijing, CN
217.89.121.5	AS3320 Deutsche Telekom AG	`4.91ms` from Berlin, DE
190.229.42.21	AS7303 Telecom Argentina S.A.	`1.62ms` from Buenos Aires, AR
204.109.54.245	AS14713 Hosted Backbone	`0.49ms` from Dallas, US
37.84.68.133	AS3320 Deutsche Telekom AG	`19.66ms` from Frankfurt am Main, DE
135.196.235.181	AS3257 GTT Communications Inc.	`14.96ms` from London, GB
203.47.212.245	AS1221 Telstra Limited	`1.24ms` from Melbourne, AU
189.40.212.21	AS26615 TIM S/A	`2.04ms` from Osasco, BR
77.106.184.5	AS29492 EIDSIVA DIGITAL AS	`2.32ms` from Oslo, NO
63.232.41.101	AS209 CenturyLink Communications, LLC	`3.90ms` from Seattle, US
18.138.217.149	AS16509 Amazon.com, Inc.	`0.11ms` from Singapore, SG
60.66.239.37	AS17676 SoftBank Corp.	`2.52ms` from Tokyo, JP
86.108.43.85	AS8376 Jordan Data Communications Company LLC	`1.14ms` from Amman, JO
188.202.18.69	AS1136 KPN B.V.	`19.95ms` from Amsterdam, NL
73.141.8.165	AS7922 Comcast Cable Communications, LLC	`7.12ms` from Ashburn, US
190.7.38.37	AS20207 Gigared S.A.	`19.85ms` from Buenos Aires, AR
75.129.94.149	AS20115 Charter Communications LLC	`9.37ms` from Chicago, US
116.23.137.101	AS4134 CHINANET-BACKBONE	`2.76ms` from Guangzhou, CN
45.164.66.37	AS267699 CUBOTELECOM CIA. LTDA.	`6.67ms` from Guayaquil, EC
123.157.128.69	AS4837 CHINA UNICOM China169 Backbone	`3.97ms` from Hangzhou, CN
149.96.245.197	AS16839 SERVICENOW, INC.	`7.92ms` from Kelowna, CA
3.8.53.53	AS16509 Amazon.com, Inc.	`0.14ms` from London, GB
150.143.216.213	AS6871 Plusnet	`6.19ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f3 -m9 205.251.125.226

traceroute to 205.251.125.226 (205.251.125.226): 9 hops max, 52 byte packets

3 [] 91.200.241.131 16.795 ms

4 [] 80.81.193.130 97.178 ms

5 [AS29838] 205.251.127.4 97.534 ms

6 [AS29838] 108.60.151.223 97.676 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in London, GB

On March 13th 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.

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