166.203.112.0/20

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 166.203.0.0/16

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
176.92.4.4	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.13ms` from Athens, GR
125.67.68.36	AS4134 CHINANET-BACKBONE	`7.47ms` from Chengdu, CN
206.168.93.4	AS46208 Peninsula Fiber Network, LLC	`15.31ms` from Chicago, US
116.100.194.36	AS24086 Viettel Corporation	`1.73ms` from Ho Chi Minh City, VN
94.240.169.148	AS29436 Buryanov Konstantin Volodimirovich	`5.86ms` from Kyiv, UA
194.74.159.84	AS2856 British Telecommunications PLC	`0.81ms` from London, GB
138.248.240.180	AS31655 Gamma Telecom Holdings Ltd	`0.41ms` from London, GB
12.197.207.180	AS7018 AT&T Enterprises, LLC	`1.62ms` from Los Angeles, US
34.148.178.116	AS396982 Google LLC	`0.14ms` from Moncks Corner, US
187.254.96.244	AS16960 Television Internacional, S.A. de C.V.	`9.90ms` from Monterrey, MX
58.242.86.100	AS4837 CHINA UNICOM China169 Backbone	`7.08ms` from Nanjing, CN
210.197.251.148	AS4725 SoftBank Corp.	`15.30ms` from Osaka, JP
124.134.92.196	AS4837 CHINA UNICOM China169 Backbone	`4.91ms` from Qingdao, CN
210.131.38.52	AS2510 FUJITSU LIMITED	`4.23ms` from Tokyo, JP
209.87.197.148	AS397038 Broward College	`6.92ms` from Atlanta, US
87.200.20.244	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.56ms` from Dubai, AE
93.204.195.4	AS3320 Deutsche Telekom AG	`4.57ms` from Hamburg, DE
184.189.63.180	AS22773 Cox Communications Inc.	`5.70ms` from Kansas City, US
79.145.29.148	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.11ms` from Madrid, ES
151.245.173.132	AS20326 TeraSwitch Networks Inc.	`1.03ms` from New York City, US
184.177.10.180	AS22773 Cox Communications Inc.	`0.77ms` from Phoenix, US
39.68.205.4	AS4837 CHINA UNICOM China169 Backbone	`7.01ms` from Qingdao, CN
173.231.12.100	AS18450 WebNX, Inc.	`0.95ms` from Salt Lake City, US
148.233.9.196	AS8151 UNINET	`1.13ms` from Santiago de Queretaro, MX
119.213.165.244	AS4766 Korea Telecom	`1.78ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f3 -m13 166.203.127.205

traceroute to 166.203.127.205 (166.203.127.205): 13 hops max, 52 byte packets

3 [AS3356] 4.69.209.110 134.58 ms

4 [AS3356] 4.68.39.2 135.919 ms

5 [AS7018] 32.130.24.46 139.694 ms

6 *

7 *

8 *

9 *

10 [AS20057] 166.147.126.36 138.684 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Santiago, CL

On December 6th 2025

What are IP address ranges?

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