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  2. 66.0.0.0/8
  3. AS7018  | 66.136.0.0/13

66.136.0.0/13

AS7018  ·  AT&T Enterprises, LLC

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Summary

Country United States
Domain att.com
ASN AS7018
Registry ARIN
ID SBCIS-SIS80

WHOIS Details

NetHandle:      NET-66-136-0-0-1
OrgID:          AEL-360
Parent:         NET-66-0-0-0-0
NetName:        SBCIS-SIS80
NetRange:       66.136.0.0 - 66.143.255.255
NetType:        allocation
RegDate:        2001-06-05
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:      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


POCHandle:      ZS44-ARIN
IsRole:         Y
LastName:       IPAdmin-ATT Internet Services
FirstName:      
Street:         7277 164th Ave NE
Street:         Attn: IP Management
City:           Redmond
State/Prov:     WA
Country:        US
PostalCode:     98052
RegDate:        2000-05-17
Updated:        2025-08-18
OfficePhone:    +1-888-510-5545
Mailbox:        ipadmin@att.com
Mailbox:        ipadmin@semail.att.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 66.136.0.0/13

Range ASN Company Num of IPs
66.140.111.0/24 AS10421 Texas Tech University 256
66.136.112.0/24 AS32505 Fort Bliss Federal Credit Union 256
66.139.27.0/24 AS395238 Brazosport ISD 256
66.142.244.0/24 AS46202 Michael's Store 256
66.138.158.0/24 AS4917 AMDOCS Inc. 256
66.143.174.0/24 AS5671 SBC Technology Resources 256
66.142.245.0/24 AS11427 TD Industries 256
66.136.40.0/24 AS18674 Frost National Bank 256
66.142.195.0/24 AS27268 Chickasaw Nation 256
66.141.233.0/24 AS29790 New Liberty Hospital District of Clay County Missouri 256
66.141.192.0/23 AS400218 Cherokee Nation Government 512

Nearby Ranges

BGP prefixes that overlap with 66.0.0.0/8

Range ASN Company Num of IPs
66.120.0.0/13 AS7018 AT&T Enterprises, LLC 524,288
66.120.0.0/13 AS22352 AT&T Enterprises, LLC 524,288
66.192.0.0/14 AS400057 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS3549 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
66.12.0.0/14 AS701 Verizon Business 262,144
66.192.0.0/14 AS32268 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS23314 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 AS394750 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS13628 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS11402 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS33745 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS32617 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29921 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS62478 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS18929 Level 3 Parent, LLC 262,144
66.104.0.0/14 AS2828 Verizon Business 262,144
66.192.0.0/14 AS35863 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS30258 Level 3 Parent, LLC 262,144
66.236.0.0/14 AS2828 Verizon Business 262,144
66.192.0.0/14 AS13755 Level 3 Parent, LLC 262,144
66.236.0.0/14 AS29819 Verizon Business 262,144
66.192.0.0/14 AS395837 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
66.88.0.0/15 AS2828 Verizon Business 131,072
66.74.0.0/15 AS11427 Charter Communications Inc 131,072
66.100.0.0/15 AS3561 CenturyLink Communications, LLC 131,072
66.20.0.0/15 AS23199 AT&T Enterprises, LLC 131,072
66.68.0.0/15 AS11427 Charter Communications Inc 131,072
66.2.0.0/15 AS2828 Verizon Business 131,072
66.66.0.0/15 AS11351 Charter Communications Inc 131,072
66.20.0.0/15 AS6389 AT&T Enterprises, LLC 131,072
66.72.0.0/15 AS7018 AT&T Enterprises, LLC 131,072
66.144.0.0/15 AS19902 Department of Administrative Services 131,072
66.74.0.0/15 AS20001 Charter Communications Inc 131,072
66.100.0.0/15 AS46854 CenturyLink Communications, LLC 131,072
66.20.0.0/15 AS32467 AT&T Enterprises, LLC 131,072
66.176.0.0/15 AS7922 Comcast Cable Communications, LLC 131,072
66.100.0.0/15 AS27328 CenturyLink Communications, LLC 131,072
66.20.0.0/15 AS2386 AT&T Enterprises, LLC 131,072
66.74.0.0/15 AS7224 Charter Communications Inc 131,072
66.130.0.0/15 AS5769 Videotron Ltee 131,072
66.92.0.0/15 AS3257 GTT Americas, LLC 131,072
66.30.0.0/15 AS7922 Comcast Cable Communications, LLC 131,072

Hosted domains

There are 145 domain names hosted across 107 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
66.142.3.157 battleinthesaddle.net 12
66.138.58.4 fuelpurchasemanager.com 7
66.141.46.73 smitty.net 4
66.138.58.85 fueltaxrouter.org 3
66.138.206.185 miss-internet.com 3
66.140.90.225 royalsintranet.com 3
66.141.130.237 psitechnology.com 3
66.143.222.12 thecurriehome.info 2
66.141.237.252 hsins-kc.com 2
66.143.226.73 fomtooley.com 2
66.139.78.77 keirmcconomy.com 2
66.142.3.75 ppsfc.org 2
66.140.110.41 diversifiedcropinsuranceservices.com 2
66.137.170.80 atoka.net 2
66.141.50.137 bfnaustin.com 2
66.142.3.81 pphef.org 2
66.139.78.177 gohgoh.com 2
66.140.196.252 cprworldwide.com 1
66.140.149.97 wrwatson.us 1
66.142.222.140 sunriseandsunsetevents.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.
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Read more

Pingable IPs

5,660 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
66.138.186.139 AS7018 AT&T Enterprises, LLC 1.62ms from Chicago, US
66.138.157.108 AS7018 AT&T Enterprises, LLC 8.08ms from Chicago, US
66.138.168.27 AS7018 AT&T Enterprises, LLC 4.70ms from Chicago, US
66.137.237.254 AS7018 AT&T Enterprises, LLC 0.97ms from Dallas, US
66.139.185.192 AS7018 AT&T Enterprises, LLC 9.82ms from Dallas, US
66.139.164.14 AS7018 AT&T Enterprises, LLC 9.79ms from Dallas, US
66.140.41.54 AS7018 AT&T Enterprises, LLC 2.70ms from Dallas, US
66.138.101.77 AS7018 AT&T Enterprises, LLC 9.92ms from Dallas, US
66.138.76.86 AS7018 AT&T Enterprises, LLC 0.98ms from Dallas, US
66.139.13.246 AS7018 AT&T Enterprises, LLC 1.36ms from Houston, US
66.138.37.31 AS7018 AT&T Enterprises, LLC 7.22ms from Kansas City, US
66.139.154.0 AS7018 AT&T Enterprises, LLC 7.25ms from Kansas City, US
66.137.178.15 AS7018 AT&T Enterprises, LLC 4.10ms from Kansas City, US
66.138.27.78 AS7018 AT&T Enterprises, LLC 12.05ms from San Antonio, US
66.138.174.116 AS7018 AT&T Enterprises, LLC 20.11ms from Chicago, US
66.137.205.87 AS7018 AT&T Enterprises, LLC 6.49ms from Chicago, US
66.138.81.128 AS7018 AT&T Enterprises, LLC 0.98ms from Dallas, US
66.137.254.0 AS7018 AT&T Enterprises, LLC 0.99ms from Dallas, US
66.138.111.63 AS7018 AT&T Enterprises, LLC 9.83ms from Dallas, US
66.139.47.94 AS7018 AT&T Enterprises, LLC 5.29ms from Dallas, US
66.139.29.66 AS7018 AT&T Enterprises, LLC 1.88ms from Houston, US
66.139.245.143 AS7018 AT&T Enterprises, LLC 1.43ms from Houston, US
66.138.52.72 AS7018 AT&T Enterprises, LLC 2.99ms from Houston, US
66.137.190.216 AS7018 AT&T Enterprises, LLC 4.10ms from Kansas City, US
66.138.24.38 AS7018 AT&T Enterprises, LLC 12.15ms from San Antonio, 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
178.59.226.237 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 1.10ms from Athens, GR
47.72.5.141 AS9500 One New Zealand Group Limited 1.98ms from Auckland, NZ
70.61.102.237 AS11426 Charter Communications Inc 3.57ms from Charlotte, US
50.196.208.61 AS7922 Comcast Cable Communications, LLC 4.92ms from Chicago, US
52.19.112.77 AS16509 Amazon.com, Inc. 0.21ms from Dublin, IE
135.125.246.29 AS16276 OVH SAS 0.13ms from Frankfurt am Main, DE
183.238.199.125 AS9808 China Mobile Communications Group Co., Ltd. 4.63ms from Guangzhou, CN
82.207.83.253 AS6849 JSC "Ukrtelecom" 2.31ms from Kyiv, UA
86.143.144.77 AS2856 British Telecommunications PLC 6.54ms from London, GB
213.86.218.253 AS8220 COLT Technology Services Group Limited 0.64ms from London, GB
79.26.59.61 AS3269 Telecom Italia S.p.A. 9.70ms from Milan, IT
122.194.57.237 AS4837 CHINA UNICOM China169 Backbone 3.09ms from Nanjing, CN
62.146.209.13 AS15598 NorthC Deutschland GmbH 1.11ms from Nuernberg, DE
189.91.84.61 AS17222 MUNDIVOX DO BRASIL LTDA 1.06ms from Rio de Janeiro, BR
125.141.221.13 AS4766 Korea Telecom 1.20ms from Seoul, KR
112.139.83.221 AS10010 TOKAI Communications Corporation 2.85ms from Tokyo, JP
178.21.111.45 AS206826 ABERTIS AUTOPISTAS ESPANA, S.A 5.45ms from Zaragoza, ES
94.59.250.237 AS5384 Emirates Internet 4.91ms from Al Fujairah City, AE
34.76.168.77 AS396982 Google LLC 0.16ms from Brussels, BE
14.142.203.61 AS4755 TATA Communications formerly VSNL is Leading ISP 0.24ms from Kolkata, IN
176.57.92.45 AS3212 Telemach Slovenija d.o.o. 3.78ms from Ljubljana, SI
88.23.104.205 AS3352 TELEFONICA DE ESPANA S.A.U. 9.80ms from Madrid, ES
82.62.55.141 AS3269 Telecom Italia S.p.A. 7.11ms from Milan, IT
161.45.149.125 AS26335 Middle Tennessee State University 4.34ms from Murfreesboro, US
151.202.44.13 AS701 Verizon Business 3.19ms from New York City, US

Traceroute

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

$
traceroute -a -n -q1 -f5 66.137.35.109
traceroute to 66.137.35.109 (66.137.35.109): 64 hops max, 52 byte packets
6 *
7 *
8 [AS174] 154.54.45.113 1.561 ms
9 [AS174] 154.54.43.18 9.519 ms
10 [AS174] 154.54.90.97 9.129 ms
11 [AS174] 66.28.4.182 9.185 ms
12 [AS174] 154.54.11.246 9.291 ms
13 *
14 *
15 *
16 *
17 [AS7018] 66.137.35.109 28.389 ms
Measurement taken from IPinfo ProbeNet in Beauharnois, CA
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.

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