1. All IP Ranges
  2. 155.0.0.0/8
  3. 155.166.0.0/16
  4. AS20057  | 155.166.224.0/21

155.166.224.0/21

AS20057  ·  AT&T Enterprises, LLC

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Summary

Country United States
Domain att.com
ASN AS20057
Parent Range 155.166.0.0/16
Registry ARIN
ID ATT-MOBILITY-LLC-155-166-0-0

WHOIS Details

NetHandle:      NET-155-166-0-0-1
OrgID:          AEL-360
Parent:         NET-155-0-0-0-0
NetName:        ATT-MOBILITY-LLC-155-166-0-0
NetRange:       155.166.0.0 - 155.166.255.255
NetType:        allocation
RegDate:        1992-03-24
Updated:        2025-03-18
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:      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:      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:      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

Overlapping Ranges

BGP prefixes that contain 155.166.224.0/21

Range ASN Company Num of IPs
155.166.0.0/16 AS20057 AT&T Enterprises, LLC 65,536

Nearby Ranges

BGP prefixes that overlap with 155.166.0.0/16

Range ASN Company Num of IPs
155.166.0.0/16 AS20057 AT&T Enterprises, LLC 65,536

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

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

IP Address ASN Details
155.166.226.171 AS20057 AT&T Enterprises, LLC 42.62ms from Santa Clara, US
155.166.228.36 AS20057 AT&T Enterprises, LLC 21.00ms from San Jose, US
155.166.227.112 AS20057 AT&T Enterprises, LLC 36.14ms from San Jose, US
155.166.230.81 AS20057 AT&T Enterprises, LLC 38.95ms from Redding, US
155.166.231.31 AS20057 AT&T Enterprises, LLC 54.33ms from Dallas, US
155.166.229.7 AS20057 AT&T Enterprises, LLC 19.62ms from San Jose, US
155.166.225.96 AS20057 AT&T Enterprises, LLC 42.80ms from Santa Clara, US
155.166.224.92 AS20057 AT&T Enterprises, LLC 54.09ms from San Jose, 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
92.46.180.213 AS9198 JSC Kazakhtelecom 2.17ms from Almaty, KZ
13.68.213.37 AS8075 Microsoft Corporation 0.41ms from Ashburn, US
119.3.193.101 AS55990 Huawei Cloud Service data center 3.56ms from Beijing, CN
71.73.149.213 AS10796 Charter Communications Inc 18.15ms from Columbus, US
159.111.246.5 AS20115 Charter Communications LLC 3.50ms from Dallas, US
41.203.59.53 AS36968 Electronic Communications Network (PTY) LTD 0.28ms from Johannesburg, ZA
96.30.62.133 AS32244 Liquid Web, L.L.C 0.25ms from Lansing, US
143.47.245.21 AS31898 Oracle Corporation 0.24ms from London, GB
37.72.114.53 AS41484 NYnet Ltd 6.35ms from London, GB
95.16.80.245 AS12479 Orange Espagne SA 3.19ms from Madrid, ES
62.14.38.197 AS12479 Orange Espagne SA 11.24ms from Madrid, ES
68.221.237.5 AS8075 Microsoft Corporation 0.13ms from Madrid, ES
189.144.14.229 AS8151 UNINET 1.07ms from Mexico City, MX
177.32.118.229 AS28573 Claro NXT Telecomunicacoes Ltda 4.13ms from Osasco, BR
61.2.131.37 AS9829 National Internet Backbone 8.84ms from Saint Thomas Mount, IN
58.231.29.53 AS9318 SK Broadband Co Ltd 1.74ms from Seoul, KR
13.251.83.229 AS16509 Amazon.com, Inc. 0.13ms from Singapore, SG
202.248.94.197 AS2510 FUJITSU LIMITED 9.37ms from Tokyo, JP
106.137.123.5 AS2516 KDDI CORPORATION 6.85ms from Tokyo, JP
39.3.65.149 AS4725 SoftBank Corp. 3.75ms from Tokyo, JP
83.1.196.181 AS5617 Orange Polska Spolka Akcyjna 3.04ms from Warsaw, PL
61.148.177.5 AS4808 China Unicom Beijing Province Network 2.43ms from Beijing, CN
139.215.123.69 AS4837 CHINA UNICOM China169 Backbone 3.92ms from Changchun, CN
84.174.99.69 AS3320 Deutsche Telekom AG 2.31ms from Duesseldorf, DE
176.147.199.69 AS5410 Bouygues Telecom SA 9.57ms from Duesseldorf, DE

Traceroute

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

$
traceroute -a -n -q1 -f5 155.166.230.136
traceroute to 155.166.230.136 (155.166.230.136): 64 hops max, 52 byte packets
5 [AS7018] 32.130.91.82 7.504 ms
6 *
7 *
8 *
11 *
12 *
13 *
14 [AS20057] 155.166.230.136 91.546 ms
Measurement taken from IPinfo ProbeNet in Fremont, 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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