166.187.128.0/18

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 166.187.0.0/16

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
86.96.15.2	AS5384 Emirates Internet	`4.80ms` from Al Fujairah City, AE
77.166.161.50	AS1136 KPN B.V.	`2.61ms` from Amsterdam, NL
13.69.117.130	AS8075 Microsoft Corporation	`1.05ms` from Amsterdam, NL
3.102.154.130	AS16509 Amazon.com, Inc.	`3.30ms` from Auckland, NZ
35.90.19.210	AS16509 Amazon.com, Inc.	`0.22ms` from Boardman, US
84.236.51.178	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`2.34ms` from Budapest, HU
216.174.132.162	AS803 Saskatchewan Telecommunications	`19.29ms` from Des Moines, US
31.52.212.34	AS2856 British Telecommunications PLC	`5.50ms` from Erith, GB
87.129.249.194	AS3320 Deutsche Telekom AG	`0.84ms` from Frankfurt am Main, DE
39.40.50.210	AS17557 Pakistan Telecommunication Company Limited	`6.02ms` from Islamabad, PK
46.189.186.18	AS12353 Vodafone Portugal	`2.28ms` from Lisbon, PT
90.253.100.226	AS5378 Vodafone Limited	`2.55ms` from London, GB
80.169.128.242	AS8220 COLT Technology Services Group Limited	`0.76ms` from London, GB
61.68.114.66	AS7545 TPG Telecom Limited	`12.81ms` from Melbourne, AU
68.189.230.2	AS20115 Charter Communications LLC	`19.92ms` from Minneapolis, US
35.154.237.98	AS16509 Amazon.com, Inc.	`0.16ms` from Mumbai, IN
24.228.80.2	AS6128 Cablevision Systems Corp.	`1.53ms` from New York City, US
20.114.1.194	AS8075 Microsoft Corporation	`0.32ms` from Quincy, US
18.214.200.82	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
95.68.210.146	AS12389 PJSC Rostelecom	`12.32ms` from Samara, RU
13.87.157.242	AS8075 Microsoft Corporation	`0.56ms` from San Jose, US
43.216.116.114	AS16509 Amazon.com, Inc.	`0.45ms` from Sepang, MY
113.23.207.146	AS38182 Extreme Broadband - Total Broadband Experience	`0.24ms` from Sepang, MY
95.202.8.34	AS3301 Telia Company AB	`12.77ms` from Stockholm, SE
217.31.189.2	AS8473 Bahnhof AB	`0.83ms` from Stockholm, SE

Traceroute

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

traceroute -a -n -q1 -f3 -m8 166.187.157.47

traceroute to 166.187.157.47 (166.187.157.47): 8 hops max, 52 byte packets

3 [AS42831] 5.101.143.16 4.193 ms

4 *

5 [AS3257] 213.200.112.173 72.451 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Coventry, GB

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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