1. All IP Ranges
  2. 155.0.0.0/8
  3. 155.163.0.0/16
  4. AS20057  | 155.163.0.0/16

155.163.0.0/16

AS20057  ·  AT&T Enterprises, LLC

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Summary

Country United States
Domain att.com
ASN AS20057
Registry ARIN
ID ATT-MOBILITY-LLC-155-163-0-0

WHOIS Details

NetHandle:      NET-155-163-0-0-1
OrgID:          AEL-360
Parent:         NET-155-0-0-0-0
NetName:        ATT-MOBILITY-LLC-155-163-0-0
NetRange:       155.163.0.0 - 155.163.255.255
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:      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

Nearby Ranges

BGP prefixes that overlap with 155.0.0.0/8

Range ASN Company Num of IPs
155.7.0.0/16 AS27065 DoD Network Information Center 65,536
155.7.0.0/16 AS273 DoD Network Information Center 65,536
155.108.0.0/16 AS26561 Global Network Services 65,536
155.223.0.0/16 AS2592 Ege University (EGE) 65,536
155.7.0.0/16 AS27066 DoD Network Information Center 65,536
155.104.0.0/16 AS1906 Northrop Grumman Corp. 65,536
155.228.0.0/16 AS25021 Etat de Fribourg 65,536
155.130.0.0/16 AS22911 SWITCH, LTD 65,536
155.178.0.0/16 AS22773 Federal Aviation Administration 65,536
155.136.0.0/16 AS21054 Royal Bank of Scotland 65,536
155.132.0.0/16 AS200656 Nokia EMEA 65,536
155.7.0.0/16 AS27064 DoD Network Information Center 65,536
155.97.0.0/16 AS17055 University of Utah 65,536
155.144.0.0/16 AS17756 Australian Postal Corporation 65,536
155.201.0.0/16 AS20426 PriceWaterhouseCoopers, LLP 65,536
155.178.0.0/16 AS22773 Federal Aviation Administration 65,536
155.3.0.0/16 AS21853 New Brunswick Power Holding Corporation 65,536
155.135.0.0/16 AS2152 California State University, Dominguez Hills 65,536
155.134.0.0/16 AS16509 Amazon.com, Inc. 65,536
155.48.0.0/16 AS16481 Babson College 65,536
155.188.0.0/16 AS20437 Nationwide Mutual Insurance Company 65,536
155.38.0.0/16 AS16509 Amazon Technologies Inc. 65,536
155.33.0.0/16 AS156 Northeastern University 65,536
155.53.0.0/16 AS158 Munin Systems Inc. 65,536
155.246.0.0/16 AS16889 Stevens Institute of Technology 65,536
155.100.0.0/16 AS17055 University of Utah 65,536
155.92.0.0/16 AS11500 Milwaukee School of Engineering 65,536
155.101.0.0/16 AS17055 University of Utah 65,536
155.98.0.0/16 AS17055 University of Utah 65,536
155.99.0.0/16 AS17055 University of Utah 65,536
155.60.0.0/16 AS10235 NATIONAL AUSTRALIA BANK LIMITED 65,536
155.253.0.0/16 AS137 Area della Ricerca di Milano 65,536
155.6.0.0/16 AS1637 Headquarters, USAISC 65,536
155.187.0.0/16 AS140637 Department of Climate Change Energy the Environment and Water 65,536
155.31.0.0/16 AS11809 Embry-Riddle Aeronautical University 65,536
155.5.0.0/16 AS1637 Headquarters, USAISC 65,536
155.155.0.0/16 AS1585 Headquarters, USAISC 65,536
155.40.0.0/16 AS16509 Amazon.com, Inc. 65,536
155.143.0.0/16 AS135887 Telstra Limited 65,536
155.155.0.0/16 AS1556 Headquarters, USAISC 65,536
155.230.0.0/16 AS10052 Kyungpook National University 65,536
155.155.0.0/16 AS1554 Headquarters, USAISC 65,536
155.250.0.0/16 AS13167 Merck KGaA 65,536
155.193.0.0/16 AS16509 Amazon.com, Inc. 65,536
155.197.0.0/16 AS16509 Amazon.com, Inc. 65,536
155.151.0.0/16 AS1540 Headquarters, USAISC 65,536
155.109.0.0/16 AS10273 Florida Power & Light Company 65,536
155.24.0.0/16 AS1556 Headquarters, USAISC 65,536
155.185.0.0/16 AS137 Universita' degli Studi di Modena e Reggio Emilia 65,536
155.68.0.0/16 AS31746 Franklin and Marshall College 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.
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Pingable IPs

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

IP Address ASN Details
155.163.248.201 AS20057 AT&T Enterprises, LLC 61.14ms from San Jose, US
155.163.236.173 AS20057 AT&T Enterprises, LLC 2.11ms from Ashburn, US
155.163.234.156 AS20057 AT&T Enterprises, LLC 29.03ms from Dallas, US
155.163.235.134 AS20057 AT&T Enterprises, LLC 27.53ms from Dallas, US
155.163.208.8 AS20057 AT&T Enterprises, LLC 3.33ms from Ashburn, US
155.163.246.1 AS20057 AT&T Enterprises, LLC 63.39ms from San Jose, US
155.163.237.65 AS20057 AT&T Enterprises, LLC 44.70ms from Ashburn, US
155.163.233.50 AS20057 AT&T Enterprises, LLC 22.81ms from Houston, US
155.163.195.4 AS20057 AT&T Enterprises, LLC 46.09ms from Ashburn, US
155.163.192.230 AS20057 AT&T Enterprises, LLC 34.49ms from Atlanta, US
155.163.239.23 AS20057 AT&T Enterprises, LLC 29.89ms from Dallas, US
155.163.232.139 AS20057 AT&T Enterprises, LLC 31.56ms from Houston, US
155.163.194.73 AS20057 AT&T Enterprises, LLC 2.59ms 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
173.252.107.32 AS32934 Facebook, Inc. 3.40ms from Ashburn, US
50.110.121.128 AS5650 Frontier Communications of America, Inc. 10.57ms from Ashburn, US
107.219.142.16 AS7018 AT&T Enterprises, LLC 11.19ms from Atlanta, US
34.240.222.48 AS16509 Amazon.com, Inc. 0.17ms from Dublin, IE
176.38.197.48 AS39608 Lanet Network Ltd 0.78ms from Kyiv, UA
187.131.63.128 AS8151 UNINET 3.77ms from Santiago de Queretaro, MX
54.255.76.64 AS16509 Amazon.com, Inc. 0.14ms from Singapore, SG
75.129.255.240 AS20115 Charter Communications LLC 9.25ms from St. Louis, US
152.204.174.144 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 19.70ms from Bogota, CO
73.142.148.96 AS7922 Comcast Cable Communications, LLC 6.83ms from Boston, US
156.203.5.80 AS8452 TE-AS 6.30ms from Cairo, EG
35.32.82.160 AS27274 Central Michigan University 4.67ms from Detroit, US
68.40.190.96 AS7922 Comcast Cable Communications, LLC 9.37ms from Detroit, US
51.75.29.224 AS16276 OVH SAS 0.11ms from Gravelines, FR
113.116.130.0 AS4134 CHINANET-BACKBONE 1.98ms from Guangzhou, CN
85.65.69.0 AS1680 Cellcom Fixed Line Communication L.P 3.52ms from Haifa, IL
121.196.205.192 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.11ms from Hangzhou, CN
47.6.72.64 AS20115 Charter Communications LLC 8.63ms from Los Angeles, US
88.32.73.16 AS3269 Telecom Italia S.p.A. 4.28ms from Milan, IT
98.0.14.112 AS11351 Charter Communications Inc 9.98ms from New York City, US
144.52.249.144 AS4134 CHINANET-BACKBONE 9.97ms from Qingdao, CN
34.237.13.160 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
54.84.102.64 AS14618 Amazon.com, Inc. 0.24ms from Reston, US
151.25.206.112 AS1267 WIND TRE S.P.A. 5.53ms from Rome, IT
220.127.40.32 AS4766 Korea Telecom 1.56ms 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 -m9 155.163.29.54
traceroute to 155.163.29.54 (155.163.29.54): 9 hops max, 52 byte packets
1 [AS52423] 168.197.96.1 0.256 ms
2 *
3 [AS52263] 200.229.7.33 0.728 ms
4 [AS20057] 209.183.33.226 114.245 ms
5 [AS20057] 209.183.33.226 114.443 ms
6 [AS20057] 209.183.33.226 114.002 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Curridabat, CR
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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