166.203.16.0/20

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:      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 166.203.0.0/16

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

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
68.33.87.132	AS7922 Comcast Cable Communications, LLC	`8.81ms` from Ashburn, US
16.144.51.84	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
189.36.244.196	AS270795 LD telecom	`2.33ms` from Curitiba, BR
217.85.153.180	AS3320 Deutsche Telekom AG	`8.17ms` from Frankfurt am Main, DE
213.173.160.84	AS8220 COLT Technology Services Group Limited	`0.52ms` from Geneve, CH
154.223.234.84	AS214143 SKYDIGITAL TELECOM LTD	`0.30ms` from Kuala Lumpur, MY
152.232.57.4	AS55286 B2 Net Solutions Inc.	`0.47ms` from Los Angeles, US
68.232.237.68	AS12042 Fidium	`6.29ms` from Minneapolis, US
71.212.38.84	AS209 CenturyLink Communications, LLC	`1.77ms` from Seattle, US
196.51.230.228	AS400463 DynaNode LLC	`0.63ms` from Seattle, US
211.169.68.212	AS3786 LG DACOM Corporation	`1.56ms` from Seoul, KR
151.234.2.228	AS58224 Iran Telecommunication Company PJS	`11.33ms` from Yerevan, AM
170.84.172.4	AS263717 SOL TELECOMUNICACIONES S.A.	`5.90ms` from Asuncion, PY
193.161.7.4	AS25460 The Networking People (TNP) Limited	`7.43ms` from London, GB
16.26.24.244	AS16509 Amazon.com, Inc.	`0.56ms` from Melbourne, AU
80.117.81.52	AS3269 Telecom Italia S.p.A.	`3.70ms` from Milan, IT
173.61.155.36	AS701 Verizon Business	`3.67ms` from New York City, US
70.66.137.212	AS6327 Shaw Communications	`5.52ms` from Seattle, US
24.22.237.132	AS7922 Comcast Cable Communications, LLC	`4.45ms` from Seattle, US
114.46.228.132	AS3462 Data Communication Business Group	`3.31ms` from Taichung, TW
31.146.14.244	AS35805 JSC "Silknet"	`4.18ms` from Tbilisi, GE
57.180.31.52	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
75.88.107.20	AS7029 Windstream Communications LLC	`10.73ms` from Atlanta, US
67.191.136.116	AS7922 Comcast Cable Communications, LLC	`5.35ms` from Atlanta, US
41.38.37.84	AS8452 TE-AS	`3.50ms` from Cairo, EG

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 166.203.27.230

traceroute to 166.203.27.230 (166.203.27.230): 13 hops max, 52 byte packets

3 [AS3356] 4.69.209.110 136.06 ms

4 *

5 [AS7018] 32.130.24.46 141.057 ms

6 *

7 *

8 *

9 *

10 [AS20057] 166.147.126.37 142.396 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Budapest, HU

On December 28th 2025

What are IP address ranges?

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