166.187.0.0/18

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

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Useful for Cybersecurity

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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
73.236.116.146	AS7922 Comcast Cable Communications, LLC	`10.31ms` from Ashburn, US
151.236.144.130	AS39686 Eurofiber Nederland BV	`1.46ms` from Brussels, BE
197.57.140.162	AS8452 TE-AS	`6.64ms` from Cairo, EG
77.24.135.50	AS3209 Vodafone GmbH	`1.78ms` from Frankfurt am Main, DE
202.105.172.162	AS4134 CHINANET-BACKBONE	`7.59ms` from Guangzhou, CN
194.6.195.66	AS39227 Corpex Internet GmbH	`0.39ms` from Hamburg, DE
138.37.48.178	AS198864 Queen Mary and Westfield College, University of London	`1.49ms` from London, GB
185.237.102.2	AS31404 LYCATEL DISTRIBUTION UK LIMITED	`0.39ms` from London, GB
62.56.61.82	AS5378 Vodafone Limited	`7.55ms` from London, GB
121.211.7.82	AS1221 Telstra Limited	`18.45ms` from Melbourne, AU
38.108.43.2	AS174 Cogent Communications, LLC	`0.35ms` from Miami, US
204.11.234.242	AS33724 VOLICO	`1.53ms` from Miami, US
171.39.169.2	AS4837 CHINA UNICOM China169 Backbone	`9.27ms` from Nanning, CN
23.42.135.66	AS16625 Akamai Technologies, Inc.	`0.14ms` from Osasco, BR
200.108.46.242	AS14709 Cable Onda	`1.09ms` from Panama, PA
27.221.214.34	AS4837 CHINA UNICOM China169 Backbone	`4.14ms` from Qingdao, CN
13.223.253.2	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
181.88.233.194	AS7303 Telecom Argentina S.A.	`1.87ms` from Rosario, AR
34.100.55.82	AS396982 Google LLC	`1.27ms` from Sao Paulo, BR
121.150.193.162	AS4766 Korea Telecom	`4.90ms` from Seoul, KR
119.205.154.98	AS4766 Korea Telecom	`2.58ms` from Seoul, KR
1.232.6.2	AS9318 SK Broadband Co Ltd	`2.15ms` from Seoul, KR
175.136.185.50	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`2.56ms` from Sepang, MY
103.23.88.2	AS150881 INTERSTELLAR DIGITAL TECHNOLOGY COMPANY LIMITED	`1.12ms` from Taipei, TW
175.104.213.34	AS10013 FreeBit Co.,Ltd.	`12.70ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f4 -m8 166.187.20.108

traceroute to 166.187.20.108 (166.187.20.108): 8 hops max, 52 byte packets

4 [AS3257] 92.60.251.57 41.319 ms

5 [AS3257] 213.200.112.173 72.38 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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