1. All IP Ranges
  2. 66.0.0.0/8
  3. AS7018  | 66.72.0.0/15

66.72.0.0/15

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-66-72-0-0-1
OrgID:          AEL-360
Parent:         NET-66-0-0-0-0
NetName:        SBCIS-SIS80
NetRange:       66.72.0.0 - 66.73.255.255
NetType:        allocation
RegDate:        2001-01-29
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:      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:        [email protected]
Mailbox:        [email protected]
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:        [email protected]
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:        [email protected]
Source:         ARIN

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
66.136.0.0/13 AS7018 AT&T Enterprises, LLC 524,288
66.136.0.0/13 AS16788 AT&T Enterprises, LLC 524,288
66.120.0.0/13 AS22352 AT&T Enterprises, LLC 524,288
66.192.0.0/14 AS394750 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS18929 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29921 Level 3 Parent, LLC 262,144
66.12.0.0/14 AS701 Verizon Business 262,144
66.192.0.0/14 AS13755 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
66.192.0.0/14 AS62478 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS23314 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS33745 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 AS32617 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29707 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS394171 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 AS14467 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS11402 Level 3 Parent, LLC 262,144
66.104.0.0/14 AS2828 Verizon Business 262,144
66.192.0.0/14 AS395760 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS400057 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS3356 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS13628 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29985 Level 3 Parent, LLC 262,144
66.236.0.0/14 AS29819 Verizon Business 262,144
66.66.0.0/15 AS11351 Charter Communications Inc 131,072
66.144.0.0/15 AS19902 Department of Administrative Services 131,072
66.100.0.0/15 AS3561 CenturyLink Communications, LLC 131,072
66.20.0.0/15 AS32467 AT&T Enterprises, LLC 131,072
66.100.0.0/15 AS46854 CenturyLink Communications, LLC 131,072
66.68.0.0/15 AS11427 Charter Communications Inc 131,072
66.30.0.0/15 AS7922 Comcast Cable Communications, LLC 131,072
66.74.0.0/15 AS7224 Charter Communications Inc 131,072
66.20.0.0/15 AS63238 AT&T Enterprises, LLC 131,072
66.176.0.0/15 AS7922 Comcast Cable Communications, LLC 131,072
66.88.0.0/15 AS2828 Verizon Business 131,072
66.2.0.0/15 AS2828 Verizon Business 131,072
66.100.0.0/15 AS27328 CenturyLink Communications, LLC 131,072
66.74.0.0/15 AS11427 Charter Communications Inc 131,072
66.92.0.0/15 AS3257 GTT Americas, LLC 131,072
66.130.0.0/15 AS5769 Videotron Ltee 131,072
66.20.0.0/15 AS6389 AT&T Enterprises, LLC 131,072
66.92.0.0/15 AS11696 GTT Americas, LLC 131,072
66.74.0.0/15 AS20001 Charter Communications Inc 131,072

Hosted domains

There are 115 domain names hosted across 59 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
66.73.190.235 paragear.com 16
66.72.218.130 luxekustoms.com 14
66.73.106.128 sianara.net 9
66.73.195.137 rogerfourbit.com 6
66.73.190.12 hezner.net 5
66.73.190.13 hezner.com 4
66.72.218.228 jessieandchuck.com 4
66.72.218.132 abcsigns.biz 3
66.73.190.0 hezner.biz 3
66.72.5.4 adairgraphic.com 3
66.73.183.250 3725group.com 3
66.73.190.8 hezner.com 3
66.73.204.187 yurtgang.click 2
66.72.132.133 cmysayph.com 2
66.73.163.143 walterglez.com 2
66.73.190.11 wildcyclone.net 2
66.73.201.27 whitebeard.io 2
66.73.200.123 vogelectric.net 1
66.73.202.158 bluedavise.com 1
66.72.54.218 partnerwithme.org 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
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Pingable IPs

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

IP Address ASN Details
66.72.84.12 AS7018 AT&T Enterprises, LLC 37.87ms from Dallas, US
66.73.201.160 AS7018 AT&T Enterprises, LLC 10.01ms from Dallas, US
66.73.170.187 AS7018 AT&T Enterprises, LLC 6.27ms from Los Angeles, US
66.73.167.77 AS7018 AT&T Enterprises, LLC 2.24ms from Miami, US
66.72.130.155 AS7018 AT&T Enterprises, LLC 6.53ms from Atlanta, US
66.73.197.125 AS7018 AT&T Enterprises, LLC 3.47ms from Atlanta, US
66.73.157.75 AS7018 AT&T Enterprises, LLC 15.19ms from Chicago, US
66.73.183.84 AS7018 AT&T Enterprises, LLC 3.61ms from Dallas, US
66.72.216.230 AS7018 AT&T Enterprises, LLC 12.16ms from Atlanta, US
66.73.155.84 AS7018 AT&T Enterprises, LLC 4.24ms from Chicago, US
66.72.80.192 AS7018 AT&T Enterprises, LLC 21.83ms from Dallas, US
66.73.106.30 AS7018 AT&T Enterprises, LLC 4.39ms from San Jose, US
66.73.123.92 AS7018 AT&T Enterprises, LLC 5.97ms from Columbus, US
66.73.4.1 AS7018 AT&T Enterprises, LLC 9.76ms from Dallas, US
66.73.6.1 AS7018 AT&T Enterprises, LLC 9.88ms from Dallas, US
66.73.7.248 AS7018 AT&T Enterprises, LLC 10.76ms from Dallas, US
66.73.3.212 AS7018 AT&T Enterprises, LLC 10.28ms from Dallas, US
66.73.107.62 AS7018 AT&T Enterprises, LLC 4.47ms from Santa Clara, US
66.73.188.97 AS7018 AT&T Enterprises, LLC 1.85ms from Chicago, US
66.73.0.1 AS7018 AT&T Enterprises, LLC 10.43ms from Dallas, US
66.73.174.128 AS7018 AT&T Enterprises, LLC 5.95ms from Los Angeles, US
66.73.175.140 AS7018 AT&T Enterprises, LLC 5.75ms from Los Angeles, US
66.73.10.132 AS7018 AT&T Enterprises, LLC 11.03ms from Chicago, US
66.73.182.79 AS7018 AT&T Enterprises, LLC 2.78ms from Dallas, US
66.72.128.192 AS7018 AT&T Enterprises, LLC 11.26ms 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
108.44.202.239 AS701 Verizon Business 3.09ms from Ashburn, US
97.219.166.31 AS6167 Verizon Business 11.25ms from Atlanta, US
222.153.101.47 AS4771 Spark New Zealand Trading Ltd. 14.12ms from Auckland, NZ
117.132.155.159 AS24547 Hebei Mobile Communication Company Limited 9.78ms from Beijing, CN
196.118.145.159 AS36925 MEDITELECOM 4.88ms from Casablanca, MA
223.155.107.223 AS4134 CHINANET-BACKBONE 4.07ms from Chenzhou, CN
98.10.165.95 AS11351 Charter Communications Inc 16.81ms from Chicago, US
113.181.29.15 AS45899 VNPT Corp 2.00ms from Hanoi, VN
154.23.63.143 AS54801 Zillion Network Inc. 0.99ms from Hong Kong, HK
80.46.245.207 AS13285 TalkTalk Communications Limited 2.94ms from Manchester, GB
203.220.86.79 AS7545 TPG Telecom Limited 1.69ms from Melbourne, AU
81.72.45.255 AS3269 Telecom Italia S.p.A. 2.93ms from Milan, IT
160.92.121.15 AS8677 Worldline SA 5.26ms from Paris, FR
23.139.36.175 AS63023 GTHost 0.07ms from Phoenix, US
221.0.117.175 AS4837 CHINA UNICOM China169 Backbone 5.00ms from Qingdao, CN
20.165.66.207 AS8075 Microsoft Corporation 0.14ms from San Antonio, US
128.120.144.31 AS6192 University of California, Davis 4.04ms from San Jose, US
73.63.153.159 AS7922 Comcast Cable Communications, LLC 3.36ms from Santa Clara, US
183.120.117.63 AS4766 Korea Telecom 7.24ms from Seoul, KR
210.122.16.15 AS4961 Daewoo Information Systems 8.52ms from Seoul, KR
41.99.3.175 AS36947 Telecom Algeria 9.27ms from Valencia, ES
71.70.214.223 AS11426 Charter Communications Inc 11.34ms from Washington, US
172.208.8.175 AS8075 Microsoft Corporation 0.59ms from Ashburn, US
121.27.165.15 AS4837 CHINA UNICOM China169 Backbone 10.13ms from Beijing, CN
50.24.121.223 AS19108 Optimum 10.73ms from Dallas, US

Traceroute

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

$
traceroute -a -n -q1 -f4 -m9 66.73.56.231
traceroute to 66.73.56.231 (66.73.56.231): 9 hops max, 52 byte packets
4 [AS2914] 129.250.2.254 1.188 ms
5 *
6 [AS7018] 32.130.106.190 197.346 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
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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