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
198.146.209.20 ██████████ 2
198.146.192.10 █████████ 2
198.146.195.20 ██████████ 2
66.4.18.197 ██████████ 1
66.4.189.2 ██████████ 1
198.146.208.20 ██████████ 1
198.146.195.10 ██████████ 1
198.146.104.18 ██████████ 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

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

IP Address ASN Details
208.182.101.109 AS19957 AT&T Enterprises, LLC 7.49ms from Atlanta, US
66.4.60.1 AS19957 AT&T Enterprises, LLC 20.28ms from Atlanta, US
66.4.78.2 AS19957 AT&T Enterprises, LLC 8.06ms from Atlanta, US
198.146.161.14 AS19957 AT&T Enterprises, LLC 8.18ms from Atlanta, US
198.146.87.17 AS19957 AT&T Enterprises, LLC 7.12ms from Atlanta, US
198.146.105.2 AS19957 AT&T Enterprises, LLC 10.75ms from Atlanta, US
208.63.128.26 AS19957 AT&T Enterprises, LLC 6.06ms from Atlanta, US
198.146.69.99 AS19957 AT&T Enterprises, LLC 7.82ms from Atlanta, US
66.4.124.15 AS19957 AT&T Enterprises, LLC 6.68ms from Atlanta, US
198.146.21.212 AS19957 AT&T Enterprises, LLC 11.82ms from Atlanta, US
198.146.148.84 AS19957 AT&T Enterprises, LLC 8.63ms from Atlanta, US
206.23.59.1 AS19957 AT&T Enterprises, LLC 9.48ms from Atlanta, US
198.146.106.102 AS19957 AT&T Enterprises, LLC 10.98ms from Atlanta, US
198.146.120.249 AS19957 AT&T Enterprises, LLC 9.76ms from Atlanta, US
198.146.82.15 AS19957 AT&T Enterprises, LLC 9.99ms from Atlanta, US
198.146.163.1 AS19957 AT&T Enterprises, LLC 7.86ms from Atlanta, US
198.146.73.208 AS19957 AT&T Enterprises, LLC 7.63ms from Atlanta, US
198.146.64.7 AS19957 AT&T Enterprises, LLC 9.01ms from Atlanta, US
66.4.31.1 AS19957 AT&T Enterprises, LLC 7.41ms from Atlanta, US
208.63.129.9 AS19957 AT&T Enterprises, LLC 5.35ms from Atlanta, US
66.4.32.1 AS19957 AT&T Enterprises, LLC 36.03ms from Atlanta, US
72.158.184.12 AS19957 AT&T Enterprises, LLC 6.26ms from Atlanta, US
206.23.6.1 AS19957 AT&T Enterprises, LLC 16.79ms from Atlanta, US
198.146.104.39 AS19957 AT&T Enterprises, LLC 10.02ms from Atlanta, US
198.146.81.254 AS19957 AT&T Enterprises, LLC 7.50ms 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
136.61.42.133 AS16591 Google Fiber Inc. 6.93ms from Ashburn, US
91.177.208.181 AS5432 Proximus NV 3.43ms from Brussels, BE
98.28.225.181 AS10796 Charter Communications Inc 7.57ms from Columbus, US
47.161.193.101 AS5650 Frontier Communications of America, Inc. 7.65ms from Dallas, US
187.205.100.85 AS8151 UNINET 7.88ms from Guadalajara, MX
68.206.151.197 AS11427 Charter Communications Inc 11.76ms from Houston, US
37.9.207.149 AS43352 Teletek Bulut Bilisim ve Iletisim Hizmetleri A.S. 0.89ms from Istanbul, TR
131.239.240.117 AS46887 Crown Castle Fiber LLC 1.25ms from Miami, US
77.140.75.85 AS15557 Societe Francaise Du Radiotelephone - SFR SA 15.77ms from Milan, IT
95.251.175.101 AS3269 Telecom Italia S.p.A. 4.32ms from Milan, IT
125.105.26.21 AS4134 CHINANET BACKBONE 8.64ms from Ningbo, CN
119.205.142.21 AS4766 Korea Telecom 4.36ms from Seoul, KR
36.238.127.101 AS3462 Data Communication Business Group 5.77ms from Taichung, TW
220.106.139.37 AS4713 NTT DOCOMO BUSINESS,Inc. 16.42ms from Tokyo, JP
91.220.21.5 AS35332 DataWeb B.V. 2.57ms from Amsterdam, NL
45.195.178.149 AS202656 Ivanov Vitaliy Sergeevich 0.18ms from Frankfurt am Main, DE
222.112.226.117 AS4766 Korea Telecom 0.87ms from Incheon, KR
180.254.97.101 AS7713 PT Telekomunikasi Indonesia 8.78ms from Jakarta, ID
102.133.225.37 AS8075 Microsoft Corporation 0.16ms from Johannesburg, ZA
79.33.67.53 AS3269 Telecom Italia S.p.A. 9.31ms from Milan, IT
27.116.50.149 AS45916 Gujarat Telelink Pvt Ltd 6.40ms from Mumbai, IN
59.83.213.197 AS4837 CHINA UNICOM China169 Backbone 4.29ms from Nanjing, CN
187.46.218.101 AS26615 TIM S/A 1.74ms from Osasco, BR
189.108.32.53 AS10429 TELEFÔNICA BRASIL S.A 0.66ms from Sao Paulo, BR
179.48.88.37 AS271117 Ultranet Ipava Telecom Ltda 0.57ms from Sao Paulo, BR

Traceroute

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

$
traceroute -a -n -q1 -m5 208.182.144.91
traceroute to 208.182.144.91 (208.182.144.91): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Asuncion, PY
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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