166.203.64.0/20

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:      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


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

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
89.7.223.4	AS12430 VODAFONE ESPANA S.A.U.	`5.52ms` from Barcelona, ES
91.104.139.84	AS213155 Yettel Hungary Ltd.	`14.18ms` from Budapest, HU
172.76.180.100	AS5650 Frontier Communications of America, Inc.	`13.86ms` from Chicago, US
83.89.25.36	AS3292 TDC Holding A/S	`4.22ms` from Copenhagen, DK
200.201.203.164	AS10733 DC MATRIX INTERNET S/A	`0.98ms` from Osasco, BR
45.230.78.100	AS267159 LTNET Telecomunicacoes EIRELE ME	`13.06ms` from Osasco, BR
185.23.139.196	AS44821 Koesio Nord Ouest SAS	`0.84ms` from Paris, FR
180.169.14.20	AS4812 China Telecom (Group)	`3.37ms` from Shanghai, CN
3.25.148.132	AS16509 Amazon.com, Inc.	`0.39ms` from Sydney, AU
35.73.44.116	AS16509 Amazon.com, Inc.	`0.15ms` from Tokyo, JP
172.96.60.100	AS14127 Iland Internet Solutions Corporation	`0.23ms` from Toronto, CA
128.148.254.68	AS11078 Brown University	`2.86ms` from Boston, US
189.174.160.20	AS8151 UNINET	`0.70ms` from Cancún, MX
41.248.36.68	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`10.80ms` from Casablanca, MA
122.167.129.180	AS24560 Bharti Airtel Ltd., Telemedia Services	`14.12ms` from Chennai, IN
91.62.110.20	AS3320 Deutsche Telekom AG	`5.46ms` from Frankfurt am Main, DE
59.32.176.116	AS4134 CHINANET-BACKBONE	`5.64ms` from Guangzhou, CN
70.167.32.244	AS22773 Cox Communications Inc.	`4.07ms` from Kansas City, US
104.32.1.196	AS20001 Charter Communications Inc	`5.94ms` from Los Angeles, US
62.211.49.36	AS3269 Telecom Italia S.p.A.	`4.42ms` from Milan, IT
80.142.96.100	AS3320 Deutsche Telekom AG	`1.52ms` from Nuernberg, DE
112.238.9.4	AS4837 CHINA UNICOM China169 Backbone	`7.04ms` from Qingdao, CN
39.90.110.244	AS4837 CHINA UNICOM China169 Backbone	`3.91ms` from Qingdao, CN
189.241.234.164	AS8151 UNINET	`3.98ms` from Santiago de Queretaro, MX
121.138.238.36	AS4766 Korea Telecom	`1.17ms` 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 -f4 -m15 166.203.67.185

traceroute to 166.203.67.185 (166.203.67.185): 15 hops max, 52 byte packets

4 [AS3356] 4.69.218.66 3.823 ms

5 [AS3356] 4.69.209.202 11.048 ms

6 *

7 *

8 [AS7018] 32.130.91.82 13.324 ms

9 *

10 *

11 *

12 [AS20057] 166.147.125.36 18.419 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in San Diego, US

On December 14th 2025

What are IP address ranges?

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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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