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
47.135.171.68	AS20115 Charter Communications LLC	`9.02ms` from Atlanta, US
59.182.144.196	AS9829 National Internet Backbone	`13.88ms` from Bengaluru, IN
217.92.176.116	AS3320 Deutsche Telekom AG	`5.64ms` from Berlin, DE
24.218.157.132	AS7922 Comcast Cable Communications, LLC	`10.55ms` from Boston, US
189.172.134.36	AS8151 UNINET	`12.18ms` from Cancún, MX
59.178.231.68	AS9829 National Internet Backbone	`6.21ms` from Delhi, IN
179.234.129.244	AS28573 Claro NXT Telecomunicacoes Ltda	`10.46ms` from Fortaleza, BR
42.52.193.4	AS4837 CHINA UNICOM China169 Backbone	`4.94ms` from Liaoyang, CN
176.145.186.4	AS5410 Bouygues Telecom SA	`2.35ms` from Marseille, FR
190.102.252.132	AS27901 Pacifico Cable SPA.	`7.92ms` from Santiago, CL
112.77.101.36	AS9316 DACOM-PUBNETPLUS	`1.91ms` from Seoul, KR
210.5.145.196	AS4812 China Telecom (Group)	`9.32ms` from Shanghai, CN
16.16.63.196	AS16509 Amazon.com, Inc.	`0.10ms` from Stockholm, SE
120.124.70.52	AS1659 Taiwan Academic Network (TANet) Information Center	`1.62ms` from Taipei, TW
51.16.14.180	AS16509 Amazon.com, Inc.	`1.37ms` from Tel Aviv, IL
32.209.243.212	AS46690 Southern New England Telephone Company and SNET America, Inc.	`11.92ms` from Ashburn, US
223.207.98.148	AS45758 Triple T Broadband Public Company Limited	`9.00ms` from Bangkok, TH
105.196.146.244	AS24835 Vodafone Data	`19.08ms` from Cairo, EG
156.193.24.68	AS8452 TE-AS	`3.00ms` from Cairo, EG
93.203.255.180	AS3320 Deutsche Telekom AG	`3.28ms` from Duesseldorf, DE
90.202.166.148	AS5607 Sky UK Limited	`1.64ms` from Erith, GB
112.127.35.132	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.39ms` from Hangzhou, CN
140.238.127.36	AS31898 Oracle Corporation	`0.26ms` from London, GB
23.230.43.100	AS11404 Wave Broadband	`4.45ms` from San Jose, US
88.94.253.196	AS2119 Telenor Norge AS	`15.34ms` from Sandefjord, NO

Traceroute

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

traceroute -a -n -q1 -f4 -m15 166.203.127.131

traceroute to 166.203.127.131 (166.203.127.131): 15 hops max, 52 byte packets

4 [AS3356] 212.3.238.213 12.073 ms

5 [AS3356] 4.69.209.110 118.686 ms

6 [AS3356] 4.68.39.2 119.443 ms

7 [AS7018] 32.130.24.46 125.29 ms

8 *

9 *

10 *

11 *

12 [AS20057] 166.147.126.36 128.189 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Lille, FR

On November 28th 2025

What are IP address ranges?

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