166.203.80.0/20

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

76 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
166.203.81.7	AS20057 AT&T Enterprises, LLC	`2.33ms` from Ashburn, US
166.203.80.224	AS20057 AT&T Enterprises, LLC	`2.11ms` from Ashburn, US

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
32.212.29.196	AS46690 Southern New England Telephone Company and SNET America, Inc.	`12.20ms` from Ashburn, US
4.157.211.132	AS8075 Microsoft Corporation	`0.36ms` from Ashburn, US
150.140.174.180	AS5408 National Infrastructures for Research and Technology S.A.	`5.04ms` from Athens, GR
172.220.168.84	AS20115 Charter Communications LLC	`11.98ms` from Atlanta, US
191.176.115.132	AS28573 Claro NXT Telecomunicacoes Ltda	`4.83ms` from Brasilia, BR
109.128.144.148	AS5432 Proximus NV	`1.27ms` from Brussels, BE
198.23.219.4	AS36352 HostPapa	`0.10ms` from Buffalo, US
46.195.159.4	AS8434 Telenor Sverige AB	`11.22ms` from Copenhagen, DK
92.217.183.132	AS3209 Vodafone GmbH	`8.34ms` from Frankfurt am Main, DE
3.175.202.4	AS16509 Amazon.com, Inc.	`0.75ms` from Hong Kong, HK
89.240.5.20	AS13285 TalkTalk Communications Limited	`1.82ms` from London, GB
80.93.0.36	AS174 Cogent Communications, LLC	`11.49ms` from London, GB
51.9.212.52	AS6871 Plusnet	`13.57ms` from London, GB
15.184.20.180	AS16509 Amazon.com, Inc.	`0.15ms` from Manama, BH
81.22.22.244	AS39273 Kalaam Telecom Bahrain B.S.C.	`1.66ms` from Manama, BH
174.177.65.68	AS7922 Comcast Cable Communications, LLC	`13.81ms` from Murfreesboro, US
201.26.186.196	AS27699 TELEFÔNICA BRASIL S.A	`12.48ms` from Osasco, BR
82.127.28.212	AS3215 Orange S.A.	`2.15ms` from Paris, FR
97.94.241.132	AS20115 Charter Communications LLC	`15.80ms` from San Jose, US
208.177.44.100	AS2828 Verizon Business	`0.74ms` from San Jose, US
15.158.231.100	AS16509 Amazon.com, Inc.	`0.49ms` from Seattle, US
3.141.116.244	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
2.66.165.116	AS44034 Hi3G Access AB	`17.36ms` from Goeteborg, SE
157.66.171.100	AS152777 PT Runnet Media Utama	`0.49ms` from Jakarta, ID
92.177.150.20	AS12479 Orange Espagne SA	`2.49ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -f5 -m14 166.203.93.76

traceroute to 166.203.93.76 (166.203.93.76): 14 hops max, 52 byte packets

5 [AS7018] 192.205.37.45 62.518 ms

6 [AS7018] 32.130.89.0 64.719 ms

7 *

8 *

9 *

10 *

11 [AS20057] 166.147.124.36 63.804 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Fremont, US

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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