166.203.160.0/20

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

Pingable IPs

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

IP Address ASN Details
166.203.162.208 AS20057 AT&T Enterprises, LLC 12.56ms from Houston, US
166.203.163.68 AS20057 AT&T Enterprises, LLC 11.43ms from Houston, US
166.203.161.124 AS20057 AT&T Enterprises, LLC 11.31ms from Houston, US
166.203.166.154 AS20057 AT&T Enterprises, LLC 11.32ms from Houston, US
166.203.160.56 AS20057 AT&T Enterprises, LLC 11.33ms from Houston, US
166.203.175.40 AS20057 AT&T Enterprises, LLC 25.84ms from Chicago, US
166.203.174.39 AS20057 AT&T Enterprises, LLC 11.50ms from Houston, US
166.203.170.76 AS20057 AT&T Enterprises, LLC 11.30ms from Houston, US
166.203.165.22 AS20057 AT&T Enterprises, LLC 11.29ms from Houston, US
166.203.167.100 AS20057 AT&T Enterprises, LLC 11.35ms from Houston, US
166.203.171.64 AS20057 AT&T Enterprises, LLC 11.29ms from Houston, US
166.203.172.77 AS20057 AT&T Enterprises, LLC 11.36ms from Houston, US
166.203.173.177 AS20057 AT&T Enterprises, LLC 11.35ms from Houston, US
166.203.164.33 AS20057 AT&T Enterprises, LLC 11.39ms from Houston, US
166.203.168.184 AS20057 AT&T Enterprises, LLC 11.36ms from Houston, US
166.203.169.179 AS20057 AT&T Enterprises, LLC 11.72ms from Houston, 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
47.72.253.132 AS9500 One New Zealand Group Limited 2.18ms from Auckland, NZ
41.69.57.212 AS24835 Vodafone Data 11.53ms from Cairo, EG
102.44.50.228 AS8452 TE-AS 3.62ms from Cairo, EG
75.243.24.52 AS6167 Verizon Business 12.72ms from Chicago, US
187.95.145.212 AS262318 HORIZONS 0.77ms from Curitiba, BR
117.241.250.196 AS9829 National Internet Backbone 5.87ms from Delhi, IN
75.71.228.20 AS7922 Comcast Cable Communications, LLC 1.90ms from Denver, US
20.233.72.4 AS8075 Microsoft Corporation 0.92ms from Dubai, AE
52.84.126.132 AS16509 Amazon.com, Inc. 0.12ms from Minneapolis, US
50.80.191.68 AS30036 Mediacom Communications Corp 18.50ms from Minneapolis, US
95.34.34.196 AS2119 Telenor Norge AS 12.15ms from Oslo, NO
78.197.75.4 AS12322 Free SAS 1.44ms from Paris, FR
47.32.141.244 AS20115 Charter Communications LLC 7.10ms from San Jose, US
76.105.50.148 AS7922 Comcast Cable Communications, LLC 5.36ms from Santa Clara, US
187.234.108.180 AS8151 UNINET 5.00ms from Santiago de Queretaro, MX
32.221.71.100 AS46690 Southern New England Telephone Company and SNET America, Inc. 4.61ms from Secaucus, US
222.239.107.196 AS9318 SK Broadband Co Ltd 2.01ms from Seoul, KR
152.42.208.52 AS14061 DigitalOcean, LLC 0.18ms from Singapore, SG
157.25.122.100 AS12912 T-Mobile Polska S.A. 0.75ms from Warsaw, PL
82.117.207.228 AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o. 0.89ms from Belgrade, RS
186.122.137.4 AS11664 Techtel LMDS Comunicaciones Interactivas S.A. 2.51ms from Buenos Aires, AR
1.59.73.116 AS4837 CHINA UNICOM China169 Backbone 12.83ms from Changchun, CN
134.175.222.68 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.16ms from Guangzhou, CN
91.52.148.228 AS3320 Deutsche Telekom AG 3.00ms from Hamburg, DE
45.194.171.164 AS134548 DXTL Tseung Kwan O Service 0.74ms from Hong Kong, HK

Traceroute

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

$
traceroute -a -n -q1 -f7 166.203.172.146
traceroute to 166.203.172.146 (166.203.172.146): 64 hops max, 52 byte packets
7 [AS3356] 4.69.209.110 12.14 ms
8 *
9 [AS7018] 32.130.24.46 6.112 ms
10 *
11 *
12 *
13 *
15 *
16 *
17 *
18 [AS20057] 166.203.172.146 110.713 ms
Measurement taken from IPinfo ProbeNet in Dallas, US
On

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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