166.172.64.0/18

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-166-170-0-0-1
OrgID:          AEL-360
Parent:         NET-166-0-0-0-0
NetName:        AEL-360
NetRange:       166.170.0.0 - 166.179.107.255
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 166.172.0.0/16

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
87.180.203.210	AS3320 Deutsche Telekom AG	`1.50ms` from Berlin, DE
110.20.85.210	AS4804 Microplex PTY LTD	`3.22ms` from Brisbane, AU
112.192.216.50	AS4837 CHINA UNICOM China169 Backbone	`7.26ms` from Chengdu, CN
20.60.234.66	AS8075 Microsoft Corporation	`0.35ms` from Gaevle, SE
103.77.183.82	AS150896 HUNGCLOUD COMPANY LIMITED	`0.21ms` from Hanoi, VN
27.106.96.226	AS136907 HUAWEI CLOUDS	`1.17ms` from Hong Kong, HK
47.246.60.82	AS24429 Zhejiang Taobao Network Co.,Ltd	`0.12ms` from Hong Kong, HK
20.2.199.114	AS8075 Microsoft Corporation	`0.57ms` from Hong Kong, HK
218.213.94.130	AS9293 NTT Com Asia Limited	`1.52ms` from Hong Kong, HK
194.73.48.130	AS2856 British Telecommunications PLC	`1.01ms` from London, GB
185.208.156.66	AS42624 Global-Data System IT Corporation	`3.23ms` from Lugano, CH
95.255.153.82	AS3269 Telecom Italia S.p.A.	`3.65ms` from Milan, IT
136.142.152.50	AS4130 University of Pittsburgh	`6.75ms` from Ashburn, US
193.203.117.2	AS61978 York UK Hosting Ltd	`0.15ms` from Coventry, GB
63.35.109.178	AS16509 Amazon.com, Inc.	`0.28ms` from Dublin, IE
217.235.76.162	AS3320 Deutsche Telekom AG	`7.89ms` from Frankfurt am Main, DE
108.156.13.178	AS16509 Amazon.com, Inc.	`0.42ms` from Helsinki, FI
178.94.45.98	AS9304 HGC Global Communications Limited	`2.99ms` from Hong Kong, HK
211.206.130.178	AS9318 SK Broadband Co Ltd	`7.10ms` from Incheon, KR
89.145.84.2	AS29017 NTT Global Data Centers EMEA UK Ltd.	`1.14ms` from London, GB
93.62.203.162	AS12874 Fastweb SpA	`0.93ms` from Milan, IT
88.60.153.114	AS3269 Telecom Italia S.p.A.	`0.56ms` from Milan, IT
142.163.153.242	AS855 Bell Canada	`14.61ms` from Montreal, CA
121.233.208.178	AS146966 China Telecom	`1.16ms` from Nanjing, CN
15.228.218.194	AS16509 Amazon.com, Inc.	`1.99ms` from Osasco, BR

Traceroute

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

traceroute -a -n -q1 -m6 166.172.116.77

traceroute to 166.172.116.77 (166.172.116.77): 6 hops max, 52 byte packets

1 [AS26383] 5.39.254.1 116.926 ms

2 *

3 [AS3257] 213.200.112.173 67.265 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in London, GB

On January 19th 2026

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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