166.204.0.0/20

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
86.83.223.68	AS1136 KPN B.V.	`1.78ms` from Amsterdam, NL
73.128.241.148	AS7922 Comcast Cable Communications, LLC	`8.20ms` from Berkeley Springs, US
35.92.99.4	AS16509 Amazon.com, Inc.	`0.57ms` from Boardman, US
86.54.225.100	AS7775 Irontrust Networks	`0.93ms` from Boston, US
113.190.117.20	AS45899 VNPT Corp	`1.60ms` from Hanoi, VN
156.246.233.20	AS44559 IT HOSTLINE LTD	`0.22ms` from Hong Kong, HK
31.113.187.84	AS2856 British Telecommunications PLC	`2.62ms` from London, GB
160.87.4.4	AS299 University of California, Irvine	`5.88ms` from Los Angeles, US
95.19.64.132	AS12479 Orange Espagne SA	`9.72ms` from Madrid, ES
68.194.88.20	AS6128 Cablevision Systems Corp.	`8.16ms` from Morris Plains, US
179.129.161.196	AS26599 TELEFÔNICA BRASIL S.A	`2.05ms` from Osasco, BR
185.127.231.52	AS51546 Qavat AB	`0.39ms` from Stockholm, SE
89.138.4.4	AS1680 Cellcom Fixed Line Communication L.P	`2.57ms` from Tel Aviv, IL
13.114.243.100	AS16509 Amazon.com, Inc.	`0.19ms` from Tokyo, JP
129.132.60.244	AS559 SWITCH	`0.58ms` from Zuerich, CH
173.203.136.228	AS27357 Rackspace Hosting	`0.33ms` from Ashburn, US
71.61.145.68	AS7922 Comcast Cable Communications, LLC	`11.74ms` from Ashburn, US
192.159.162.52	AS394511 eFolder, Inc	`0.94ms` from Atlanta, US
24.66.151.4	AS6327 Shaw Communications	`4.71ms` from Calgary, CA
176.96.178.180	AS9009 M247 Europe SRL	`0.30ms` from Frankfurt am Main, DE
5.68.96.116	AS5607 Sky UK Limited	`7.86ms` from London, GB
213.78.150.4	AS13285 TalkTalk Communications Limited	`6.43ms` from Manchester, GB
149.102.224.20	AS212238 Datacamp Limited	`0.19ms` from Miami, US
106.181.1.52	AS2516 KDDI CORPORATION	`17.70ms` from Osaka, JP
189.231.252.68	AS8151 UNINET	`15.13ms` from Phoenix, US

Traceroute

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

traceroute -a -n -q1 -m12 166.204.10.157

traceroute to 166.204.10.157 (166.204.10.157): 12 hops max, 52 byte packets

1 [AS397423] 192.154.213.1 4.681 ms

2 [AS3356] 4.4.128.253 11.76 ms

3 *

4 *

5 [AS7018] 32.130.91.82 47.82 ms

6 *

7 *

8 *

9 [AS20057] 166.147.125.36 77.763 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Dallas, US

On November 28th 2025

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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