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

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

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:         9380 STATION ST
City:           LONE TREE
State/Prov:     CO
Country:        US
PostalCode:     80124
RegDate:        2024-11-22
Updated:        2025-10-14
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:         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


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
66.120.0.0/13 AS7018 AT&T Enterprises, LLC 524,288
66.136.0.0/13 AS7018 AT&T Enterprises, LLC 524,288
66.120.0.0/13 AS22352 AT&T Enterprises, LLC 524,288
66.192.0.0/14 AS30258 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS18929 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS3356 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29707 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS62478 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS13628 Level 3 Parent, LLC 262,144
66.12.0.0/14 AS701 Verizon Business 262,144
66.236.0.0/14 AS29819 Verizon Business 262,144
66.192.0.0/14 AS29921 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS395837 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS35863 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS11402 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS13755 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS394750 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS400057 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS14467 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS23314 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS394171 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS3549 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS395760 Level 3 Parent, LLC 262,144
66.192.0.0/14 AS29985 Level 3 Parent, LLC 262,144
66.104.0.0/14 AS2828 Verizon Business 262,144
66.236.0.0/14 AS2828 Verizon Business 262,144
66.192.0.0/14 AS32268 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
66.130.0.0/15 AS5769 Videotron Ltee 131,072
66.100.0.0/15 AS46854 CenturyLink Communications, LLC 131,072
66.74.0.0/15 AS7224 Charter Communications Inc 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 AS3561 CenturyLink Communications, LLC 131,072
66.74.0.0/15 AS20001 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
66.66.0.0/15 AS11351 Charter Communications Inc 131,072
66.166.0.0/15 AS3257 GTT Americas, LLC 131,072
66.92.0.0/15 AS11696 GTT Americas, LLC 131,072
66.30.0.0/15 AS7922 Comcast Cable Communications, LLC 131,072
66.100.0.0/15 AS27328 CenturyLink Communications, LLC 131,072
66.72.0.0/15 AS7018 AT&T Enterprises, LLC 131,072
66.176.0.0/15 AS7922 Comcast Cable Communications, LLC 131,072
66.92.0.0/15 AS3257 GTT Americas, LLC 131,072

Hosted domains

There are 20 domain names hosted across 16 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-gamers.net 2
66.21.56.71 nc123.com 1
66.21.66.75 rssrspr.com 1
66.21.74.69 palmbeats.com 1
66.20.168.67 chefchaouen.net 1
66.21.46.54 teddasher.com 1
66.20.236.102 themedicalhealthnetwork.biz 1
66.20.20.30 ctnmedia.com 1
66.21.56.86 instantaccessnc.com 1
66.20.173.153 desertedgegroup.com 1
66.20.43.50 decu.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
Read more

Pingable IPs

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

IP Address ASN Details
66.20.36.65 AS6389 AT&T Enterprises, LLC 6.69ms from Atlanta, US
66.21.18.121 AS6389 AT&T Enterprises, LLC 5.34ms from Miami, US
66.21.114.100 AS6389 AT&T Enterprises, LLC 23.40ms from Atlanta, US
66.21.47.163 AS6389 AT&T Enterprises, LLC 4.76ms from Atlanta, US
66.21.93.95 AS6389 AT&T Enterprises, LLC 2.54ms from Chicago, US
66.21.94.97 AS6389 AT&T Enterprises, LLC 12.23ms from Atlanta, US
66.21.122.107 AS6389 AT&T Enterprises, LLC 2.76ms from Chicago, US
66.21.19.194 AS6389 AT&T Enterprises, LLC 5.36ms from Miami, US
66.20.45.20 AS23199 Comdata,INC 3.30ms from Murfreesboro, US
66.21.112.223 AS6389 AT&T Enterprises, LLC 2.55ms from Chicago, US
66.20.204.97 AS6389 AT&T Enterprises, LLC 14.16ms from Miami, US
66.21.49.145 AS6389 AT&T Enterprises, LLC 6.46ms from Atlanta, US
66.21.123.61 AS6389 AT&T Enterprises, LLC 2.55ms from Chicago, US
66.20.205.130 AS6389 AT&T Enterprises, LLC 12.57ms from Miami, US
66.21.26.5 AS6389 AT&T Enterprises, LLC 1.74ms from Atlanta, US
66.20.193.109 AS6389 AT&T Enterprises, LLC 4.38ms from Atlanta, US
66.20.18.242 AS6389 AT&T Enterprises, LLC 5.65ms from Miami, US
66.20.248.254 AS63238 Upchurch Telecom & Data, Inc. 8.43ms from New Orleans, US
66.20.19.65 AS6389 AT&T Enterprises, LLC 5.49ms from Miami, US
66.20.212.1 AS29902 Complete Computers 16.91ms from Atlanta, US
66.21.120.130 AS6389 AT&T Enterprises, LLC 11.59ms from Atlanta, US
66.20.56.129 AS6389 AT&T Enterprises, LLC 7.83ms from Dallas, US
66.20.24.65 AS6389 AT&T Enterprises, LLC 1.87ms from Atlanta, US
66.20.213.162 AS29902 Complete Computers 24.08ms from Atlanta, US
66.21.115.1 AS6389 AT&T Enterprises, LLC 15.27ms 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
86.82.9.159 AS1136 KPN B.V. 1.50ms from Amsterdam, NL
114.244.13.255 AS4808 China Unicom Beijing Province Network 3.34ms from Beijing, CN
3.31.209.223 AS8987 Amazon Data Services Ireland Ltd 0.29ms from Boardman, US
86.105.59.31 AS8926 Moldtelecom SA 5.41ms from Chisinau, MD
87.167.174.143 AS3320 Deutsche Telekom AG 9.28ms from Frankfurt am Main, DE
39.104.155.143 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.22ms from Hohhot, CN
23.195.201.47 AS16625 Akamai Technologies, Inc. 0.12ms from Houston, US
92.172.81.191 AS12479 Orange Espagne SA 7.32ms from Madrid, ES
31.37.72.31 AS5410 Bouygues Telecom SA 12.29ms from Marseille, FR
77.238.131.255 AS34550 INTERCON AS 8.30ms from Moscow, RU
180.18.150.63 AS4713 NTT DOCOMO BUSINESS,Inc. 6.95ms from Osaka, JP
15.204.114.223 AS16276 OVH SAS 0.62ms from Portland, US
20.236.24.31 AS8075 Microsoft Corporation 0.40ms from Quincy, US
54.161.62.159 AS14618 Amazon.com, Inc. 0.15ms from Reston, US
200.13.85.63 AS270440 Markan comercio e serviços EIRELI-ME 2.59ms from Rio de Janeiro, BR
112.156.254.159 AS17858 LG POWERCOMM 1.97ms from Seoul, KR
183.115.155.143 AS4766 Korea Telecom 2.25ms from Seoul, KR
180.107.139.175 AS140292 CHINATELECOM Jiangsu province Suzhou 5G network 6.09ms from Shanghai, CN
172.124.75.175 AS7018 AT&T Enterprises, LLC 6.57ms from Atlanta, US
73.16.45.127 AS7922 Comcast Cable Communications, LLC 9.17ms from Boston, US
116.162.12.31 AS4837 CHINA UNICOM China169 Backbone 9.95ms from Changsha, CN
99.48.144.15 AS7018 AT&T Enterprises, LLC 8.37ms from Chicago, US
77.213.86.175 AS9158 Telenor A/S 2.08ms from Copenhagen, DK
91.35.181.239 AS3320 Deutsche Telekom AG 2.38ms from Duesseldorf, DE
59.61.91.255 AS4134 CHINANET-BACKBONE 5.65ms from Fuzhou, CN

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 66.20.116.153
traceroute to 66.20.116.153 (66.20.116.153): 9 hops max, 52 byte packets
5 *
6 [AS174] 154.54.93.102 1.009 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Ashburn, US
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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales
IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs