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
198.146.106.101 AS19957 AT&T Enterprises, LLC 11.08ms from Atlanta, US
198.146.107.113 AS19957 AT&T Enterprises, LLC 10.23ms from Atlanta, US
198.146.163.18 AS19957 AT&T Enterprises, LLC 7.80ms from Atlanta, US
206.23.145.1 AS19957 AT&T Enterprises, LLC 9.79ms from Atlanta, US
208.182.101.105 AS19957 AT&T Enterprises, LLC 7.58ms from Atlanta, US
66.4.124.15 AS19957 AT&T Enterprises, LLC 6.87ms from Atlanta, US
198.146.64.7 AS19957 AT&T Enterprises, LLC 9.10ms from Atlanta, US
208.63.129.26 AS19957 AT&T Enterprises, LLC 5.46ms from Atlanta, US
206.23.59.1 AS19957 AT&T Enterprises, LLC 9.55ms from Atlanta, US
66.4.60.1 AS19957 AT&T Enterprises, LLC 19.82ms from Atlanta, US
66.4.32.1 AS19957 AT&T Enterprises, LLC 24.61ms from Lenoir, US
208.63.128.26 AS19957 AT&T Enterprises, LLC 6.06ms from Atlanta, US
198.146.148.84 AS19957 AT&T Enterprises, LLC 8.95ms from Atlanta, US
66.4.31.1 AS19957 AT&T Enterprises, LLC 7.25ms from Atlanta, US
208.182.124.15 AS19957 AT&T Enterprises, LLC 11.37ms from Atlanta, US
198.146.21.212 AS19957 AT&T Enterprises, LLC 11.91ms from Atlanta, US
66.4.78.1 AS19957 AT&T Enterprises, LLC 8.05ms from Atlanta, US
198.146.74.36 AS19957 AT&T Enterprises, LLC 10.16ms from Atlanta, US
198.146.81.254 AS19957 AT&T Enterprises, LLC 9.75ms from Atlanta, US
198.146.82.15 AS19957 AT&T Enterprises, LLC 9.94ms from Atlanta, US
206.23.254.9 AS19957 AT&T Enterprises, LLC 8.09ms from Atlanta, US
198.146.104.40 AS19957 AT&T Enterprises, LLC 9.99ms from Atlanta, US
198.146.73.208 AS19957 AT&T Enterprises, LLC 7.56ms from Atlanta, US
198.146.87.17 AS19957 AT&T Enterprises, LLC 7.35ms from Atlanta, US
198.146.161.14 AS19957 AT&T Enterprises, LLC 8.71ms 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
213.141.48.85 AS12946 R Cable y Telecable Telecomunicaciones, S.A.U. 6.84ms from A Coruna, ES
151.61.205.165 AS1267 WIND TRE S.P.A. 18.66ms from Arezzo, IT
20.39.38.5 AS8075 Microsoft Corporation 0.43ms from Ashburn, US
124.238.225.5 AS58539 Langfang,Hebei province, P.R.China 3.56ms from Beijing, CN
139.30.159.149 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 8.31ms from Berlin, DE
92.237.93.245 AS5089 Virgin Media Limited 12.25ms from Dublin, IE
162.157.85.53 AS852 TELUS Communications Inc. 1.63ms from Edmonton, CA
58.236.58.85 AS9318 SK Broadband Co Ltd 1.48ms from Incheon, KR
108.54.240.245 AS701 Verizon Business 2.31ms from New York City, US
123.221.73.245 AS4713 NTT DOCOMO BUSINESS,Inc. 6.90ms from Osaka, JP
92.179.59.37 AS8362 NordNet SA 6.51ms from Paris, FR
186.219.99.53 AS262420 CABONNET INTERNET LTDA 6.76ms from Sao Paulo, BR
88.216.192.21 AS16125 UAB Cherry Servers 2.92ms from Vilnius, LT
5.148.174.5 AS29691 Nine Internet Solutions AG 0.45ms from Zuerich, CH
74.235.214.229 AS8075 Microsoft Corporation 0.64ms from Ashburn, US
212.5.205.5 AS6855 Slovak Telekom, a.s. 1.09ms from Bratislava, SK
102.43.62.5 AS8452 TE-AS 3.58ms from Cairo, EG
52.19.193.133 AS16509 Amazon.com, Inc. 0.17ms from Dublin, IE
84.44.235.69 AS8422 NetCologne Gesellschaft fur Telekommunikation mbH 3.44ms from Duesseldorf, DE
94.72.129.37 AS15943 wilhelm.tel GmbH 0.43ms from Hamburg, DE
41.181.86.69 AS16637 MTN SA 2.01ms from Johannesburg, ZA
58.221.31.37 AS4134 CHINANET BACKBONE 4.53ms from Nanjing, CN
84.141.247.5 AS3320 Deutsche Telekom AG 4.06ms from Nuernberg, DE
213.39.66.149 AS3257 GTT Communications Inc. 0.36ms from Paris, FR
136.169.246.21 AS41704 JSC Ufanet 11.57ms from Samara, RU

Traceroute

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

$
traceroute -a -n -q1 -f3 -m8 66.4.117.127
traceroute to 66.4.117.127 (66.4.117.127): 8 hops max, 52 byte packets
4 *
5 [AS174] 154.54.61.214 66.556 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Abidjan, CI
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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