72.157.240.0/21

AS11712 · AT&T Services, Inc.

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Summary

Country	United States
Domain
ASN	AS11712
Parent Range	72.156.0.0/14
Registry	ARIN
ID	BLS-72-157-240-0-1001291010

WHOIS Details

NetHandle:      NET-72-157-240-0-1
OrgID:          C02412796
Parent:         NET-72-156-0-0-1
NetName:        BLS-72-157-240-0-1001291010
NetRange:       72.157.240.0 - 72.157.247.255
NetType:        reassignment
RegDate:        2010-01-29
Updated:        2010-01-29
Source:         ARIN


OrgID:          C02412796
OrgName:        BMF BPRG Equipment BRIC - BHM
CanAllocate:    
Street:         575 Morosgo Dr. NE
City:           Atlanta
State/Prov:     GA
Country:        US
PostalCode:     30324
RegDate:        2010-01-29
Updated:        2018-09-10
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 72.157.240.0/21

Range	ASN	Company	Num of IPs
72.156.0.0/14	AS6389	AT&T Enterprises, LLC	262,144

Nearby Ranges

BGP prefixes that overlap with 72.157.0.0/16

Range	ASN	Company	Num of IPs
72.156.0.0/14	AS6389	AT&T Enterprises, LLC	262,144
72.157.248.0/21	AS11712	BMF BPRG Equipment CRIC - CLT	2,048
72.157.10.0/23	AS7018	EARS Loopback 1 - TYS	512
72.157.8.0/23	AS7018	EARS Loopback 1 - MEM	512
72.157.20.0/23	AS7018	EARS Loopback 1 - GSP	512
72.157.0.0/23	AS7018	EARS Loopback 1 - MOB	512
72.157.4.0/23	AS7018	EARS Loopback 1 - SDF	512
72.157.24.0/23	AS7018	EARS Loopback 1 - RMO	512
72.157.12.0/23	AS7018	EARS Loopback 1 - BTR	512
72.157.16.0/23	AS7018	EARS Loopback 1 - CAE	512
72.157.18.0/24	AS7018	EARS Loopback 1 - CHS	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

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
128.251.222.149	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL
104.184.160.117	AS7018 AT&T Enterprises, LLC	`5.64ms` from Atlanta, US
117.131.237.5	AS38019 tianjin Mobile Communication Company Limited	`3.60ms` from Beijing, CN
177.155.136.37	AS53062 ALT \| GRUPO BRASIL TECPAR	`1.56ms` from Chapeco, BR
119.6.227.133	AS4837 CHINA UNICOM China169 Backbone	`1.86ms` from Chengdu, CN
216.128.128.133	AS20473 The Constant Company, LLC	`0.13ms` from Dallas, US
76.253.160.181	AS7018 AT&T Enterprises, LLC	`2.64ms` from Dallas, US
85.220.190.245	AS25394 MK Netzdienste Verwaltungs GmbH trading as MK Netzdienste GmbH & Co. KG	`0.37ms` from Frankfurt am Main, DE
84.201.44.21	AS44066 firstcolo GmbH	`0.50ms` from Frankfurt am Main, DE
78.142.239.21	AS216366 SMART-TEL LLC	`0.97ms` from Moscow, RU
80.89.196.5	AS34757 Sibirskie Seti Ltd.	`1.10ms` from Novosibirsk, RU
195.68.103.229	AS8220 COLT Technology Services Group Limited	`0.94ms` from Paris, FR
54.226.192.213	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
85.15.210.5	AS29600 AS Latvenergo	`2.89ms` from Riga, LV
183.122.55.165	AS4766 Korea Telecom	`3.63ms` from Seoul, KR
175.215.184.21	AS4766 Korea Telecom	`6.47ms` from Seoul, KR
20.44.165.21	AS8075 Microsoft Corporation	`0.14ms` from Tokyo, JP
111.20.189.85	AS9808 China Mobile Communications Group Co., Ltd.	`6.67ms` from Xi'an, CN
63.85.175.197	AS701 Verizon Business	`5.02ms` from Ashburn, US
146.142.2.5	AS7046 Verizon Business	`6.52ms` from Ashburn, US
52.149.234.165	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
67.175.30.213	AS7922 Comcast Cable Communications, LLC	`4.63ms` from Chicago, US
3.21.165.21	AS16509 Amazon.com, Inc.	`1.02ms` from Columbus, US
109.155.177.229	AS2856 British Telecommunications PLC	`1.71ms` from Erith, GB
185.50.110.245	AS208988 Buchholz Digital GmbH	`0.82ms` from Hamburg, DE

Traceroute

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

traceroute -a -n -q1 -m5 72.157.241.229

traceroute to 72.157.241.229 (72.157.241.229): 5 hops max, 52 byte packets

1 [AS21554] 38.39.182.126 4.192 ms

2 [AS21554] 66.185.29.137 44.15 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Milwaukee, US

On March 20th 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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