1. All IP Ranges
  2. 66.0.0.0/8
  3. AS6389  | 66.20.0.0/15

66.20.0.0/15

AS6389  ·  AT&T Enterprises, LLC

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Summary

Country United States
Domain att.com
ASN AS6389
Registry ARIN
ID BELLSNET-BLK8

WHOIS Details

NetHandle:      NET-66-20-0-0-1
OrgID:          AEL-360
Parent:         NET-66-0-0-0-0
NetName:        BELLSNET-BLK8
NetRange:       66.20.0.0 - 66.21.255.255
NetType:        allocation
RegDate:        2000-09-14
Updated:        2024-12-05
Source:         ARIN


OrgID:          AEL-360
OrgName:        AT&T Enterprises, LLC
CanAllocate:    
Street:         208 S. Akard St.
City:           Dallas
State/Prov:     TX
Country:        US
PostalCode:     75202
RegDate:        2024-11-22
Updated:        2025-10-29
OrgAdminHandle: ZS44-ARIN
OrgTechHandle:  ICC-ARIN
OrgTechHandle:  ZS44-ARIN
OrgAbuseHandle: ABUSE7-ARIN
OrgRoutingHandle:   ROUTI59-ARIN
Source:         ARIN


POCHandle:      ICC-ARIN
IsRole:         Y
LastName:       IP Team
FirstName:      
Street:         200 S. Laurel AVE
City:           MIDDLETOWN
State/Prov:     NJ
Country:        US
PostalCode:     07748
RegDate:        2002-09-24
Updated:        2025-08-18
OfficePhone:    +1-888-876-2382
Mailbox:        rm-ipspecialist@att.com
Source:         ARIN


POCHandle:      ZS44-ARIN
IsRole:         Y
LastName:       IPAdmin-ATT Internet Services
FirstName:      
Street:         208 S. Akard St.
City:           Dallas
State/Prov:     TX
Country:        US
PostalCode:     75202
RegDate:        2000-05-17
Updated:        2026-02-04
OfficePhone:    +1-888-510-5545
Mailbox:        ipadmin@att.com
Mailbox:        ipadmin@semail.att.com
Source:         ARIN


POCHandle:      ABUSE7-ARIN
IsRole:         Y
LastName:       abuse
FirstName:      
Street:         2701 W 15th ST
City:           Plano
State/Prov:     TX
Country:        US
PostalCode:     75075
RegDate:        2002-08-24
Updated:        2025-08-18
OfficePhone:    +1-919-319-8167
Mailbox:        abuse@att.net
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 66.0.0.0/8

Range ASN Company Num of IPs
66.136.0.0/13 AS16788 AT&T Enterprises, LLC 524,288
66.120.0.0/13 AS22352 AT&T Enterprises, LLC 524,288
66.120.0.0/13 AS7018 AT&T Enterprises, LLC 524,288
66.136.0.0/13 AS7018 AT&T Enterprises, LLC 524,288
66.12.0.0/14 AS701 Verizon Business 262,144
66.192.0.0/14 AS29921 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS35863 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS395837 Level 3 Parent, LLC 262,144
66.236.0.0/14 AS29819 Verizon Business 262,144
66.104.0.0/14 AS2828 Verizon Business 262,144
66.192.0.0/14 AS33745 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS32268 Level 3 Parent, LLC 262,144
66.236.0.0/14 AS2828 Verizon Business 262,144
66.192.0.0/14 AS394750 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29985 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS395760 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS394171 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS14467 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS30258 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS3549 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29707 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS3356 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS23314 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS11402 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS32617 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS13755 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS400057 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS13628 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS18929 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS62478 Level 3 Parent, LLC 262,144
66.92.0.0/15 AS11696 GTT Americas, LLC 131,072
66.100.0.0/15 AS3561 CenturyLink Communications, LLC 131,072
66.66.0.0/15 AS11351 Charter Communications Inc 131,072
66.144.0.0/15 AS19902 Department of Administrative Services 131,072
66.68.0.0/15 AS11427 Charter Communications Inc 131,072
66.74.0.0/15 AS11427 Charter Communications Inc 131,072
66.2.0.0/15 AS2828 Verizon Business 131,072
66.88.0.0/15 AS2828 Verizon Business 131,072
66.74.0.0/15 AS7224 Charter Communications Inc 131,072
66.92.0.0/15 AS3257 GTT Americas, LLC 131,072
66.74.0.0/15 AS20001 Charter Communications Inc 131,072
66.100.0.0/15 AS27328 CenturyLink Communications, LLC 131,072
66.100.0.0/15 AS46854 CenturyLink Communications, LLC 131,072
66.166.0.0/15 AS3257 GTT Americas, LLC 131,072
66.176.0.0/15 AS7922 Comcast Cable Communications, LLC 131,072

Hosted domains

There are 21 domain names hosted across 17 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
66.20.19.54 dow-games.net 2
66.20.173.153 desertedgegroup.com 1
66.21.74.69 palmbeats.com 1
66.20.168.67 chefchaouen.net 1
66.20.20.30 ctnmedia.com 1
66.21.56.86 instantaccessnc.com 1
66.21.46.54 teddasher.com 1
66.21.56.71 nc123.com 1
66.20.236.102 themedicalhealthnetwork.biz 1
66.20.43.50 decu.org 1
66.21.66.75 rssrspr.com 1

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

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

IP Address ASN Details
66.21.94.125 AS6389 AT&T Enterprises, LLC 12.31ms from Atlanta, US
66.21.123.38 AS6389 AT&T Enterprises, LLC 2.88ms from Chicago, US
66.20.36.65 AS6389 AT&T Enterprises, LLC 6.62ms from Atlanta, US
66.20.45.20 AS23199 Comdata,INC 3.19ms from Murfreesboro, US
66.21.93.159 AS6389 AT&T Enterprises, LLC 2.92ms from Chicago, US
66.20.193.65 AS6389 AT&T Enterprises, LLC 4.39ms from Atlanta, US
66.20.19.41 AS6389 AT&T Enterprises, LLC 5.41ms from Miami, US
66.21.49.145 AS6389 AT&T Enterprises, LLC 6.89ms from Atlanta, US
66.21.18.121 AS6389 AT&T Enterprises, LLC 5.11ms from Miami, US
66.21.95.31 AS6389 AT&T Enterprises, LLC 3.11ms from Chicago, US
66.20.248.254 AS63238 Upchurch Telecom & Data, Inc. 8.41ms from New Orleans, US
66.21.47.163 AS6389 AT&T Enterprises, LLC 4.70ms from Atlanta, US
66.20.212.1 AS29902 Complete Computers 16.70ms from Atlanta, US
66.20.24.65 AS6389 AT&T Enterprises, LLC 1.83ms from Atlanta, US
66.21.112.95 AS6389 AT&T Enterprises, LLC 2.94ms from Chicago, US
66.21.122.105 AS6389 AT&T Enterprises, LLC 2.86ms from Chicago, US
66.21.115.1 AS6389 AT&T Enterprises, LLC 15.19ms from Atlanta, US
66.21.114.102 AS6389 AT&T Enterprises, LLC 21.40ms from Atlanta, US
66.21.66.193 AS6389 AT&T Enterprises, LLC 9.93ms from Miami, US
66.20.204.97 AS6389 AT&T Enterprises, LLC 15.61ms from Miami, US
66.21.120.129 AS6389 AT&T Enterprises, LLC 11.56ms from Atlanta, US
66.20.56.129 AS6389 AT&T Enterprises, LLC 8.43ms from Dallas, US
66.21.26.6 AS6389 AT&T Enterprises, LLC 1.66ms from Atlanta, US
66.21.19.145 AS6389 AT&T Enterprises, LLC 5.49ms from Miami, US
66.20.18.241 AS6389 AT&T Enterprises, LLC 5.81ms from Miami, 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
4.152.65.15 AS8075 Microsoft Corporation 0.19ms from Boydton, US
69.73.253.191 AS14813 Columbus Telecommunications (Barbados) Limited 14.63ms from Bridgetown, BB
181.94.119.47 AS7303 Telecom Argentina S.A. 1.46ms from Cordoba, AR
113.172.114.207 AS45899 VNPT Corp 1.38ms from Ho Chi Minh City, VN
88.250.31.47 AS9121 Turk Telekomunikasyon Anonim Sirketi 16.66ms from Istanbul, TR
194.183.171.223 AS12963 "SCIENTIFIC-INDUSTRIAL FIRM "VOLZ" LIMITED LIABILITY COMPANY 0.72ms from Kyiv, UA
162.120.92.127 AS36550 M. A. Mortenson Company 1.10ms from Minneapolis, US
31.32.141.47 AS5410 Bouygues Telecom SA 3.31ms from Paris, FR
177.54.42.63 AS262889 Softhouse Soluções em Informática 12.35ms from Uberlandia, BR
92.65.247.47 AS1136 KPN B.V. 0.52ms from Amsterdam, NL
174.55.105.47 AS7922 Comcast Cable Communications, LLC 18.00ms from Ashburn, US
117.205.69.175 AS9829 National Internet Backbone 2.22ms from Bengaluru, IN
190.65.62.239 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 3.15ms from Bogota, CO
67.255.46.63 AS11351 Charter Communications Inc 19.46ms from Chicago, US
99.161.83.63 AS7018 AT&T Enterprises, LLC 8.20ms from Chicago, US
195.90.201.175 AS42730 EVANZO e-commerce GmbH 0.34ms from Frankfurt am Main, DE
217.112.199.143 AS34541 Online Solutions Oy 4.21ms from Helsinki, FI
195.122.251.223 AS8359 MTS PJSC 7.26ms from Kazan, RU
23.240.243.175 AS20001 Charter Communications Inc 5.87ms from Los Angeles, US
68.125.16.207 AS7018 AT&T Enterprises, LLC 1.74ms from Los Angeles, US
81.36.129.175 AS3352 TELEFONICA DE ESPANA S.A.U. 11.12ms from Madrid, ES
80.72.121.143 AS34467 JSC Telephone Company "Sotcom" 4.22ms from Moscow, RU
35.217.129.95 AS19527 Google LLC 0.11ms from Osaka, JP
98.167.216.15 AS22773 Cox Communications Inc. 1.80ms from Phoenix, US
81.163.78.159 AS57223 SIA NETVISION 2.20ms from Riga, LV

Traceroute

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

$
traceroute -a -n -q1 -m6 66.20.6.241
traceroute to 66.20.6.241 (66.20.6.241): 6 hops max, 52 byte packets
1 [AS59187] 154.221.35.1 27.219 ms
2 *
3 [AS9583] 1.7.50.236 5.4 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Mumbai, IN
On

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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