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
198.146.21.212 AS19957 AT&T Enterprises, LLC 11.54ms from Atlanta, US
206.23.145.1 AS19957 AT&T Enterprises, LLC 9.02ms from Atlanta, US
208.182.124.15 AS19957 AT&T Enterprises, LLC 10.96ms from Atlanta, US
66.4.78.2 AS19957 AT&T Enterprises, LLC 7.75ms from Atlanta, US
72.158.184.12 AS19957 AT&T Enterprises, LLC 5.80ms from Atlanta, US
66.4.60.2 AS19957 AT&T Enterprises, LLC 20.00ms from Atlanta, US
198.146.69.99 AS19957 AT&T Enterprises, LLC 7.93ms from Atlanta, US
72.159.76.12 AS19957 AT&T Enterprises, LLC 10.75ms from Atlanta, US
66.4.32.1 AS19957 AT&T Enterprises, LLC 35.85ms from Atlanta, US
206.23.59.1 AS19957 AT&T Enterprises, LLC 9.03ms from Atlanta, US
198.146.127.110 AS19957 AT&T Enterprises, LLC 9.93ms from Atlanta, US
198.146.195.13 AS19957 AT&T Enterprises, LLC 11.96ms from Atlanta, US
198.146.120.249 AS19957 AT&T Enterprises, LLC 9.47ms from Atlanta, US
208.63.129.26 AS19957 AT&T Enterprises, LLC 5.19ms from Atlanta, US
198.146.106.102 AS19957 AT&T Enterprises, LLC 10.71ms from Atlanta, US
66.4.18.141 AS19957 AT&T Enterprises, LLC 7.83ms from Atlanta, US
198.146.82.15 AS19957 AT&T Enterprises, LLC 9.31ms from Atlanta, US
198.146.8.26 AS19957 AT&T Enterprises, LLC 16.53ms from Atlanta, US
198.146.107.113 AS19957 AT&T Enterprises, LLC 9.79ms from Atlanta, US
208.63.128.26 AS19957 AT&T Enterprises, LLC 5.61ms from Atlanta, US
66.4.124.15 AS19957 AT&T Enterprises, LLC 6.20ms from Atlanta, US
198.146.163.32 AS19957 AT&T Enterprises, LLC 7.69ms from Atlanta, US
198.146.87.17 AS19957 AT&T Enterprises, LLC 6.95ms from Atlanta, US
198.146.198.65 AS19957 AT&T Enterprises, LLC 11.56ms from Atlanta, US
198.146.81.254 AS19957 AT&T Enterprises, LLC 7.15ms 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
18.203.219.197 AS16509 Amazon.com, Inc. 0.21ms from Dublin, IE
18.157.198.229 AS16509 Amazon.com, Inc. 0.14ms from Frankfurt am Main, DE
183.52.45.37 AS4134 CHINANET-BACKBONE 10.21ms from Guangzhou, CN
221.138.161.37 AS9318 SK Broadband Co Ltd 1.76ms from Incheon, KR
41.181.86.69 AS16637 MTN SA 2.42ms from Johannesburg, ZA
94.45.48.245 AS15683 AS6723 LIMITED LIABILITY COMPANY 0.14ms from Kyiv, UA
72.184.202.69 AS33363 Charter Communications, Inc 12.24ms from Miami, US
131.239.240.117 AS46887 Crown Castle Fiber LLC 1.23ms from Miami, US
62.204.246.245 AS34040 TTNET s.r.o. 3.19ms from Prague, CZ
151.63.45.53 AS1267 WIND TRE S.P.A. 14.33ms from Rome, IT
46.194.250.37 AS8434 Telenor Sverige AB 10.09ms from Stockholm, SE
104.46.214.53 AS8075 Microsoft Corporation 0.15ms from Tokyo, JP
72.209.247.149 AS22773 Cox Communications Inc. 8.50ms from Tulsa, US
2.105.55.165 AS3292 TDC Holding A/S 1.59ms from Tønder, DK
188.166.17.21 AS14061 DigitalOcean, LLC 0.21ms from Amsterdam, NL
82.165.96.229 AS8560 IONOS SE 0.76ms from Berlin, DE
24.106.77.245 AS10796 Charter Communications Inc 7.88ms from Cleveland, US
154.219.219.245 AS202656 Ivanov Vitaliy Sergeevich 0.20ms from Frankfurt am Main, DE
123.24.76.69 AS45899 VNPT Corp 1.39ms from Hanoi, VN
121.154.212.5 AS4766 Korea Telecom 4.67ms from Incheon, KR
205.171.54.197 AS209 CenturyLink Communications, LLC 1.15ms from Los Angeles, US
86.248.64.69 AS3215 Orange S.A. 1.55ms from Lyon, FR
83.61.13.5 AS3352 TELEFONICA DE ESPANA S.A.U. 2.64ms from Madrid, ES
123.221.73.245 AS4713 NTT DOCOMO BUSINESS,Inc. 6.76ms from Osaka, JP
3.82.56.21 AS14618 Amazon.com, Inc. 0.60ms from Reston, US

Traceroute

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

$
traceroute -a -n -q1 -f4 -m8 198.146.72.144
traceroute to 198.146.72.144 (198.146.72.144): 8 hops max, 52 byte packets
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Brussels, BE
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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