1. All IP Ranges
  2. 74.0.0.0/8
  3. 74.172.0.0/16
  4. AS6389  | 74.172.0.0/16

74.172.0.0/16

AS6389  ·  AT&T Enterprises, LLC

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Summary

Country United States
Domain att.com
ASN AS6389
Registry ARIN
ID BELLSNET-BLK17

WHOIS Details

NetHandle:      NET-74-172-0-0-1
OrgID:          AEL-360
Parent:         NET-74-0-0-0-0
NetName:        BELLSNET-BLK17
NetRange:       74.172.0.0 - 74.172.255.255
NetType:        allocation
RegDate:        2006-10-30
Updated:        2026-01-21
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:      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:        ipadmin@att.com
Mailbox:        ipadmin@semail.att.com
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:        abuse@att.net
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:        rm-ipspecialist@att.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 74.0.0.0/8

Range ASN Company Num of IPs
74.128.0.0/12 AS10796 Charter Communications Inc 1,048,576
74.16.0.0/12 AS7922 Comcast Cable Communications, LLC 1,048,576
74.32.0.0/12 AS5650 Frontier Communications of America, Inc. 1,048,576
74.144.0.0/12 AS8075 Microsoft Limited 1,048,576
74.176.0.0/14 AS8075 Microsoft Corporation 262,144
74.240.0.0/14 AS8075 Microsoft Corporation 262,144
74.224.0.0/14 AS8075 Microsoft Corporation 262,144
74.92.0.0/14 AS7922 Comcast Cable Communications, LLC 262,144
74.160.0.0/14 AS8075 Microsoft Corporation 262,144
74.8.0.0/14 AS7029 Windstream Communications LLC 262,144
74.56.0.0/14 AS5769 Videotron Ltee 262,144
74.8.0.0/14 AS397560 Windstream Communications LLC 262,144
74.4.0.0/15 AS11398 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS17402 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS19901 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS14921 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS4284 CenturyLink Communications, LLC 131,072
74.202.0.0/15 AS3549 Level 3 Parent, LLC 131,072
74.4.0.0/15 AS209 CenturyLink Communications, LLC 131,072
74.202.0.0/15 AS18669 Level 3 Parent, LLC 131,072
74.202.0.0/15 AS10753 Level 3 Parent, LLC 131,072
74.60.0.0/15 AS21928 T-Mobile USA, Inc. 131,072
74.202.0.0/15 AS3356 Level 3 Parent, LLC 131,072
74.202.0.0/15 AS27585 Level 3 Parent, LLC 131,072
74.202.0.0/15 AS14002 Level 3 Parent, LLC 131,072
74.4.0.0/15 AS4282 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS4283 CenturyLink Communications, LLC 131,072
74.202.0.0/15 AS33395 Level 3 Parent, LLC 131,072
74.4.0.0/15 AS13787 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS2379 CenturyLink Communications, LLC 131,072
74.234.0.0/15 AS8075 Microsoft Corporation 131,072
74.248.0.0/15 AS8075 Microsoft Corporation 131,072
74.4.0.0/15 AS22561 CenturyLink Communications, LLC 131,072
74.7.0.0/16 AS8075 Microsoft Limited 65,536
74.208.0.0/16 AS8560 IONOS Inc. 65,536
74.231.0.0/16 AS40285 AT&T Enterprises, LLC 65,536
74.83.0.0/16 AS6181 Altafiber 65,536
74.216.0.0/16 AS6401 Zayo Bandwidth 65,536
74.223.0.0/16 AS7029 Windstream Communications LLC 65,536
74.215.0.0/16 AS6181 Altafiber 65,536
74.125.0.0/16 AS396982 Google LLC 65,536
74.86.0.0/16 AS36351 IBM Cloud 65,536
74.230.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.173.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.232.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.190.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.166.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.180.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.231.0.0/16 AS6389 AT&T Enterprises, LLC 65,536
74.216.0.0/16 AS6461 Zayo Bandwidth 65,536

Hosted domains

There are 13 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
74.172.185.53 amclass1.com 3
74.172.180.164 nickhollingsworth.com 2
74.172.209.252 casslaw.com 1
74.172.162.78 carolinafamilycare.net 1
74.172.119.91 interactivedev.com 1
74.172.176.140 highlandmortgage.com 1
74.172.207.252 scrubtrends.net 1
74.172.140.118 markstooksbury.com 1
74.172.58.26 jacksonpatton.com 1
74.172.202.242 beallumber.com 1

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

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

IP Address ASN Details
74.172.200.57 AS6389 AT&T Enterprises, LLC 10.74ms from Durham, US
74.172.144.241 AS6389 AT&T Enterprises, LLC 21.05ms from Atlanta, US
74.172.211.5 AS6389 AT&T Enterprises, LLC 22.21ms from Atlanta, 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
197.205.155.80 AS36947 Telecom Algeria 19.92ms from Algiers, DZ
67.147.191.32 AS19901 Brightspeed 12.14ms from Ashburn, US
107.219.84.192 AS7018 AT&T Enterprises, LLC 9.95ms from Atlanta, US
101.243.164.144 AS17429 BEIJING GEHUA CATV NETWORK CO.LTD 9.24ms from Beijing, CN
106.51.74.16 AS24309 Atria Convergence Technologies Pvt. Ltd. Broadband Internet Service Provider INDIA 1.22ms from Bengaluru, IN
190.67.250.240 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 5.41ms from Bogota, CO
161.184.139.208 AS852 TELUS Communications Inc. 5.27ms from Montreal, CA
153.187.105.32 AS4713 NTT DOCOMO BUSINESS,Inc. 12.87ms from Osaka, JP
194.206.101.16 AS3215 Orange S.A. 0.87ms from Paris, FR
90.28.163.16 AS3215 Orange S.A. 10.21ms from Paris, FR
3.95.229.0 AS14618 Amazon.com, Inc. 0.41ms from Reston, US
201.119.27.80 AS8151 UNINET 3.85ms from Santiago de Queretaro, MX
24.19.147.192 AS7922 Comcast Cable Communications, LLC 7.94ms from Seattle, US
24.141.87.160 AS7992 Cogeco Connexion Inc. 5.71ms from Toronto, CA
41.69.227.240 AS24835 Vodafone Data 15.54ms from Cairo, EG
207.148.12.80 AS20473 The Constant Company, LLC 0.10ms from Chicago, US
97.167.241.32 AS6167 Verizon Business 7.32ms from Los Angeles, US
36.161.137.48 AS9808 China Mobile Communications Group Co., Ltd. 4.99ms from Nanjing, CN
18.228.55.16 AS16509 Amazon.com, Inc. 0.19ms from Osasco, BR
89.82.39.32 AS5410 Bouygues Telecom SA 17.42ms from Paris, FR
104.183.244.176 AS7018 AT&T Enterprises, LLC 8.36ms from San Jose, US
81.68.137.176 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.37ms from Shanghai, CN
125.124.30.48 AS58461 CT-HangZhou-IDC 5.64ms from Shanghai, CN
14.100.45.48 AS9506 Singtel Fibre Broadband 1.15ms from Singapore, SG
212.76.100.64 AS42925 Internet Rimon LTD 0.36ms from Tel Aviv, IL

Traceroute

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

$
traceroute -a -n -q1 -f3 -m6 74.172.72.45
traceroute to 74.172.72.45 (74.172.72.45): 6 hops max, 52 byte packets
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Ebene, MU
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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