Autonomous System details

AS19957

AT&T Enterprises, LLC  ·  att.com

United States

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AS19957 – AT&T Enterprises, LLC

Field Value
Country United States
Website att.com
Hosted domains 32
IPv4 addresses 399,360
IPv6 addresses 0
ASN type ISP
Registry arin
Allocated 23 years ago on Mar 05, 2003
Updated a year ago on Feb 12, 2025

IP Ranges

Netblock Company Num of IPs
66.4.0.0/16 State of Tennessee Department of Education 65,536
170.142.0.0/16 State of Tennessee 65,536
170.143.0.0/16 State of Tennessee 65,536
198.146.0.0/16 Tennessee Board of Regents 65,536
206.23.0.0/16 Tennessee Board of Regents 65,536
208.182.0.0/16 State of Tennessee Department of Education 65,536
208.63.128.0/20 STATE OF TENNESSEE-NETTN 4,096
66.4.28.0/22 State of Tennessee Department of Education 1,024
66.4.8.0/23 State of Tennessee Department of Education 512
66.4.14.0/23 State of Tennessee Department of Education 512
66.4.16.0/23 State of Tennessee Department of Education 512
66.4.18.0/23 State of Tennessee Department of Education 512
66.4.32.0/23 State of Tennessee Department of Education 512
66.4.60.0/23 State of Tennessee Department of Education 512
170.141.56.0/23 State of Tennessee 512
170.141.60.0/23 State of Tennessee 512
66.4.9.0/24 State of Tennessee Department of Education 256
66.4.18.0/24 State of Tennessee Department of Education 256
66.4.19.0/24 State of Tennessee Department of Education 256
66.4.27.0/24 State of Tennessee Department of Education 256
66.4.38.0/24 State of Tennessee Department of Education 256
66.4.40.0/24 State of Tennessee Department of Education 256
66.4.78.0/24 State of Tennessee Department of Education 256
66.4.81.0/24 State of Tennessee Department of Education 256
66.4.124.0/24 State of Tennessee Department of Education 256
66.4.126.0/24 State of Tennessee Department of Education 256
70.150.21.0/24 STATE OF TENNESSEE-NETTN 256
70.150.247.0/24 STATE OF TENNESSEE-NETTN 256
72.158.184.0/24 STATE OF TENNESSEE-NETTN 256
72.159.76.0/24 STATE OF TENNESSEE-NETTN 256
208.63.128.0/24 STATE OF TENNESSEE-NETTN 256
208.63.129.0/24 STATE OF TENNESSEE-NETTN 256
208.182.101.0/24 State of Tennessee Department of Education 256
208.182.124.0/24 State of Tennessee Department of Education 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS19957
                                                OrgID:          AS19957
                                                ASName:         AS19957
                                                ASNumber:       AS19957
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 32 domain names hosted across 18 IP addresses on this ASN.

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IP Address Domain Domains on this IP
198.146.12.65 ██████████ 7
206.23.142.18 ██████████ 4
198.146.195.20 ██████████ 3
198.146.209.20 ██████████ 3
198.146.192.10 █████████ 2
198.146.104.18 ██████████ 2
66.4.75.250 ██████████ 1
66.4.27.10 ██████████ 1
66.4.189.2 ██████████ 1
198.146.195.10 ██████████ 1

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Peers

There are 3 peers for this ASN.

Peers Name
AS16473 AT&T Enterprises, LLC
AS16989 The University of Tennessee Health Science Center
AS7018 AT&T Enterprises, LLC
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS7018 AT&T Enterprises, LLC
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Downstreams

There is 1 peer for this ASN.

Downstreams Name
AS16989 The University of Tennessee Health Science Center
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ASN API & Database

Pingable IPs

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

IP Address ASN Details
66.4.124.15 AS19957 AT&T Enterprises, LLC 6.68ms from Atlanta, US
72.159.76.12 AS19957 AT&T Enterprises, LLC 11.07ms from Atlanta, US
66.4.8.6 AS19957 AT&T Enterprises, LLC 7.17ms from Atlanta, US
66.4.32.1 AS19957 AT&T Enterprises, LLC 36.12ms from Atlanta, US
66.4.60.1 AS19957 AT&T Enterprises, LLC 20.20ms from Atlanta, US
208.182.101.109 AS19957 AT&T Enterprises, LLC 7.50ms from Atlanta, US
206.23.59.1 AS19957 AT&T Enterprises, LLC 9.55ms from Atlanta, US
198.146.107.113 AS19957 AT&T Enterprises, LLC 10.32ms from Atlanta, US
198.146.105.1 AS19957 AT&T Enterprises, LLC 10.83ms from Atlanta, US
66.4.78.2 AS19957 AT&T Enterprises, LLC 8.34ms from Atlanta, US
198.146.209.50 AS19957 AT&T Enterprises, LLC 16.08ms from Atlanta, US
198.146.148.84 AS19957 AT&T Enterprises, LLC 9.19ms from Atlanta, US
66.4.18.184 AS19957 AT&T Enterprises, LLC 8.35ms from Atlanta, US
208.63.128.26 AS19957 AT&T Enterprises, LLC 6.12ms from Atlanta, US
198.146.64.255 AS19957 AT&T Enterprises, LLC 7.81ms from Atlanta, US
66.4.31.1 AS19957 AT&T Enterprises, LLC 7.00ms from Atlanta, US
206.23.254.9 AS19957 AT&T Enterprises, LLC 7.93ms from Atlanta, US
198.146.82.15 AS19957 AT&T Enterprises, LLC 9.81ms from Atlanta, US
206.23.145.1 AS19957 AT&T Enterprises, LLC 9.41ms from Atlanta, US
198.146.161.14 AS19957 AT&T Enterprises, LLC 8.58ms from Atlanta, US
206.23.6.244 AS19957 AT&T Enterprises, LLC 15.99ms from Atlanta, US
198.146.208.160 AS19957 AT&T Enterprises, LLC 16.16ms from Atlanta, US
66.4.9.19 AS19957 AT&T Enterprises, LLC 7.49ms from Atlanta, US
208.182.124.15 AS19957 AT&T Enterprises, LLC 11.42ms from Atlanta, US
198.146.104.62 AS19957 AT&T Enterprises, LLC 9.78ms from Atlanta, 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
214.1.78.229 AS5972 United States Department of Defense (DoD) 4.69ms from Ashburn, US
142.44.123.213 AS53828 NETWORK INNOVATIONS, LLC 0.52ms from Chicago, US
50.109.178.165 AS5650 Frontier Communications of America, Inc. 6.63ms from Chicago, US
172.183.139.133 AS8075 Microsoft Corporation 0.18ms from Chicago, US
14.186.231.101 AS45899 VNPT Corp 1.64ms from Ho Chi Minh City, VN
47.242.121.117 AS45102 Alibaba (US) Technology Co., Ltd. 0.76ms from Hong Kong, HK
180.211.50.181 AS45361 Ulsan Jung-Ang Broadcasting Network 7.36ms from Incheon, KR
175.136.16.165 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 3.33ms from Kuala Lumpur, MY
165.236.245.101 AS14265 TPx Communications 0.67ms from Los Angeles, US
92.61.110.229 AS2914 NTT America, Inc. 0.32ms from Paris, FR
213.39.66.149 AS3257 GTT Communications Inc. 0.38ms from Paris, FR
140.198.14.5 AS26783 Maricopa County Community College District 2.57ms from Phoenix, US
45.189.230.53 AS269612 SPEEDRS TECNOLOGIA DA INFORMACAO LTDA 7.03ms from Porto Alegre, BR
4.160.59.229 AS8075 Microsoft Corporation 0.17ms from Sao Paulo, BR
119.198.254.101 AS4766 Korea Telecom 6.57ms from Seoul, KR
133.218.13.53 AS2497 Internet Initiative Japan Inc. 6.01ms from Tokyo, JP
153.232.123.69 AS4713 NTT DOCOMO BUSINESS,Inc. 3.42ms from Tokyo, JP
44.200.59.149 AS14618 Amazon.com, Inc. 0.68ms from Ashburn, US
85.248.14.85 AS5578 SWAN, a.s. 0.31ms from Bratislava, SK
86.47.153.21 AS5466 Eircom Limited 4.02ms from Dublin, IE
121.204.224.133 AS133774 Fuzhou 1.81ms from Fuzhou, CN
113.118.161.85 AS4134 CHINANET-BACKBONE 2.72ms from Guangzhou, CN
83.61.13.5 AS3352 TELEFONICA DE ESPANA S.A.U. 2.66ms from Madrid, ES
117.212.203.85 AS9829 National Internet Backbone 13.10ms from Mumbai, IN
133.167.22.85 AS9371 SAKURA Internet Inc. 0.30ms from Osaka, JP

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 198.146.30.137
traceroute to 198.146.30.137 (198.146.30.137): 6 hops max, 52 byte packets
2 [AS3257] 154.14.160.13 0.869 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
On

Related Networks

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 AS19957 at robtex.

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