166.204.104.0/22

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:      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

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

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

IP Address	ASN	Details
166.204.104.50	AS20057 AT&T Enterprises, LLC	`6.10ms` from Dallas, 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
79.235.167.70	AS3320 Deutsche Telekom AG	`4.61ms` from Duesseldorf, DE
113.183.20.230	AS45899 VNPT Corp	`4.50ms` from Hanoi, VN
193.254.253.246	AS51540 DAL Bilgi Teknolojileri ve Bilisim Sistemleri Ticaret A.S.	`1.17ms` from Istanbul, TR
24.51.32.134	AS13807 Great Plains Communications LLC	`7.96ms` from Lincoln, US
80.195.144.182	AS5089 Virgin Media Limited	`1.14ms` from London, GB
130.166.104.166	AS2152 CENIC	`1.42ms` from Los Angeles, US
199.27.189.6	AS29838 Atlantic Metro Communications II, Inc.	`0.56ms` from New York City, US
109.110.227.230	AS35432 Cablenet Communication Systems plc	`1.18ms` from Nicosia, CY
191.197.175.198	AS26599 TELEFÔNICA BRASIL S.A	`4.54ms` from Novo Hamburgo, BR
191.250.162.118	AS18881 TELEFÔNICA BRASIL S.A	`14.12ms` from Sao Paulo, BR
172.92.130.102	AS11404 Wave Broadband	`0.32ms` from Seattle, US
175.181.113.102	AS4780 Digital United Inc.	`4.00ms` from Shanghai, CN
202.166.67.86	AS9506 Singtel Fibre Broadband	`1.29ms` from Singapore, SG
23.214.51.118	AS16625 Akamai Technologies, Inc.	`0.08ms` from Sydney, AU
108.162.69.22	AS7992 Cogeco Connexion Inc.	`8.17ms` from Toronto, CA
203.35.137.166	AS1221 Telstra Limited	`0.74ms` from Adelaide, AU
52.42.23.214	AS16509 Amazon.com, Inc.	`0.22ms` from Boardman, US
44.241.86.150	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
3.30.23.230	AS8987 Amazon Data Services Ireland Ltd	`0.35ms` from Boardman, US
20.170.71.230	AS8075 Microsoft Corporation	`0.37ms` from Frankfurt am Main, DE
168.92.204.22	AS32709 Joink, LLC	`8.48ms` from Indianapolis, US
47.181.10.118	AS5650 Frontier Communications of America, Inc.	`3.55ms` from Los Angeles, US
126.48.112.230	AS17676 SoftBank Corp.	`10.14ms` from Osaka, JP
176.178.71.246	AS5410 Bouygues Telecom SA	`15.48ms` from Paris, FR
110.174.182.230	AS7545 TPG Telecom Limited	`5.11ms` from Sydney, AU

Traceroute

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

traceroute -a -n -q1 -f2 -m12 166.204.106.34

traceroute to 166.204.106.34 (166.204.106.34): 12 hops max, 52 byte packets

2 [AS3356] 4.69.209.110 19.698 ms

3 *

4 [AS7018] 32.130.24.46 25.741 ms

5 *

6 *

7 *

8 *

9 [AS20057] 166.147.126.36 26.141 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Casper, US

On January 18th 2026

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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