166.204.112.0/20

AS20057 · AT&T Enterprises, LLC

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Summary

Country	United States
Domain	att.com
ASN	AS20057
Registry	ARIN
ID	AEL-360

WHOIS Details

NetHandle:      NET-166-183-0-0-1
OrgID:          AEL-360
Parent:         NET-166-0-0-0-0
NetName:        AEL-360
NetRange:       166.183.0.0 - 166.209.255.255
NetType:        allocation
RegDate:        2025-04-01
Updated:        2025-04-01
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:      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


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:      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

Nearby Ranges

BGP prefixes that overlap with 166.204.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
173.205.127.132	AS54641 InMotion Hosting, Inc.	`0.31ms` from Ashburn, US
73.243.132.84	AS7922 Comcast Cable Communications, LLC	`2.20ms` from Denver, US
52.16.203.116	AS16509 Amazon.com, Inc.	`0.13ms` from Dublin, IE
138.124.53.52	AS210644 AEZA INTERNATIONAL LTD	`0.48ms` from Frankfurt am Main, DE
77.1.96.148	AS6805 Telefonica Germany GmbH & Co.OHG	`12.65ms` from Hamburg, DE
37.222.155.228	AS12430 VODAFONE ESPANA S.A.U.	`1.96ms` from Madrid, ES
99.90.51.212	AS7018 AT&T Enterprises, LLC	`2.13ms` from Miami, US
208.45.179.20	AS209 CenturyLink Communications, LLC	`2.97ms` from New York City, US
71.188.89.4	AS701 Verizon Business	`3.71ms` from New York City, US
82.102.37.36	AS15805 EPIC LTD	`1.65ms` from Nicosia, CY
176.141.255.20	AS5410 Bouygues Telecom SA	`1.57ms` from Paris, FR
54.172.211.20	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
18.233.102.4	AS14618 Amazon.com, Inc.	`0.43ms` from Reston, US
136.228.9.4	AS396259 Teridion inc	`0.24ms` from San Jose, US
106.15.187.84	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.79ms` from Shanghai, CN
78.57.146.116	AS8764 Telia Lietuva, AB	`4.45ms` from Siauliai, LT
40.101.70.196	AS8075 Microsoft Corporation	`0.21ms` from Vienna, AT
123.8.15.196	AS4837 CHINA UNICOM China169 Backbone	`6.00ms` from Zhengzhou, CN
128.199.41.84	AS14061 DigitalOcean, LLC	`0.23ms` from Amsterdam, NL
98.64.56.84	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
73.149.133.212	AS7922 Comcast Cable Communications, LLC	`8.65ms` from Boston, US
102.40.71.244	AS8452 TE-AS	`4.17ms` from Cairo, EG
201.253.136.52	AS7303 Telecom Argentina S.A.	`17.40ms` from Cordoba, AR
14.233.175.180	AS45899 VNPT Corp	`1.20ms` from Da Nang, VN
93.213.217.84	AS3320 Deutsche Telekom AG	`3.37ms` from Hamburg, DE

Traceroute

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

traceroute -a -n -q1 -f2 -m14 166.204.123.144

traceroute to 166.204.123.144 (166.204.123.144): 14 hops max, 52 byte packets

2 [] 185.151.134.164 0.7 ms

3 [] 185.151.132.243 1.84 ms

4 [AS3356] 212.162.29.53 1.69 ms

5 [AS3356] 4.69.217.206 110.627 ms

6 *

7 [AS7018] 32.130.89.14 115.452 ms

8 *

9 *

10 *

11 [AS20057] 166.147.87.109 112.527 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Zagreb, HR

On November 28th 2025

What are IP address ranges?

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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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