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
74.16.0.0/12 AS7922 Comcast Cable Communications, LLC 1,048,576
74.128.0.0/12 AS10796 Charter Communications Inc 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
74.224.0.0/14 AS8075 Microsoft Corporation 262,144
74.176.0.0/14 AS8075 Microsoft Corporation 262,144
74.240.0.0/14 AS8075 Microsoft Corporation 262,144
74.160.0.0/14 AS8075 Microsoft Corporation 262,144
74.8.0.0/14 AS7029 Windstream Communications LLC 262,144
74.92.0.0/14 AS7922 Comcast Cable Communications, LLC 262,144
74.8.0.0/14 AS397560 Windstream Communications LLC 262,144
74.56.0.0/14 AS5769 Videotron Ltee 262,144
74.202.0.0/15 AS14002 Level 3 Parent, LLC 131,072
74.202.0.0/15 AS3549 Level 3 Parent, LLC 131,072
74.202.0.0/15 AS10753 Level 3 Parent, LLC 131,072
74.202.0.0/15 AS27585 Level 3 Parent, LLC 131,072
74.202.0.0/15 AS33395 Level 3 Parent, LLC 131,072
74.4.0.0/15 AS2379 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS11398 CenturyLink Communications, LLC 131,072
74.202.0.0/15 AS3356 Level 3 Parent, LLC 131,072
74.4.0.0/15 AS17402 CenturyLink Communications, LLC 131,072
74.202.0.0/15 AS18669 Level 3 Parent, LLC 131,072
74.4.0.0/15 AS13787 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS14921 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS4283 CenturyLink Communications, LLC 131,072
74.234.0.0/15 AS8075 Microsoft Corporation 131,072
74.4.0.0/15 AS4284 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS209 CenturyLink Communications, LLC 131,072
74.60.0.0/15 AS21928 T-Mobile USA, Inc. 131,072
74.4.0.0/15 AS22561 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS19901 CenturyLink Communications, LLC 131,072
74.4.0.0/15 AS4282 CenturyLink Communications, LLC 131,072
74.248.0.0/15 AS8075 Microsoft Corporation 131,072
74.228.0.0/16 AS6389 AT&T Enterprises, LLC 65,536
74.231.0.0/16 AS35986 AT&T Enterprises, LLC 65,536
74.231.0.0/16 AS6389 AT&T Enterprises, LLC 65,536
74.7.0.0/16 AS8075 Microsoft Limited 65,536
74.191.0.0/16 AS6389 AT&T Enterprises, LLC 65,536
74.189.0.0/16 AS6389 AT&T Enterprises, LLC 65,536
74.208.0.0/16 AS8560 IONOS Inc. 65,536
74.231.0.0/16 AS40285 AT&T Enterprises, LLC 65,536
74.223.0.0/16 AS7029 Windstream Communications LLC 65,536
74.233.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.125.0.0/16 AS15169 Google LLC 65,536
74.232.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.237.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.186.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.230.0.0/16 AS16509 Amazon.com, Inc. 65,536
74.180.0.0/16 AS16509 Amazon.com, Inc. 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 birminghamdoorandwindow.com 3
74.172.180.164 nickhollingsworth.com 2
74.172.176.140 highlandmortgage.com 1
74.172.207.252 scrubtrends.net 1
74.172.162.78 carolinafamilycare.net 1
74.172.140.118 markstooksbury.com 1
74.172.202.242 beallumber.com 1
74.172.58.26 jacksonpatton.com 1
74.172.119.91 interactivedev.com 1
74.172.209.252 casslaw.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
74.172.144.241 AS6389 AT&T Enterprises, LLC 21.05ms from Atlanta, US
74.172.200.57 AS6389 AT&T Enterprises, LLC 10.74ms from Durham, 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
170.23.86.128 AS7979 Servers.com, Inc. 0.17ms from Ashburn, US
159.27.231.240 AS58593 Shanghai Blue Cloud Technology Co.,Ltd 7.48ms from Beijing, CN
200.13.43.16 AS52275 Anura S.A. 0.19ms from Buenos Aires, AR
95.9.237.176 AS9121 Turk Telekomunikasyon Anonim Sirketi 19.50ms from Bursa, TR
102.186.158.16 AS24835 Vodafone Data 14.07ms from Cairo, EG
77.54.201.160 AS12353 Vodafone Portugal 2.65ms from Lisbon, PT
162.209.156.240 AS40065 CNSERVERS LLC 0.29ms from Los Angeles, US
209.35.133.240 AS57099 Boundless Networks Limited 14.06ms from Manchester, GB
207.148.12.80 AS20473 The Constant Company, LLC 0.10ms from Chicago, US
16.78.73.240 AS16509 Amazon.com, Inc. 0.52ms from Jakarta, ID
216.132.143.176 AS6079 RCN 1.54ms from New York City, US
68.202.223.144 AS33363 Charter Communications, Inc 6.51ms from Orlando, US
18.228.55.16 AS16509 Amazon.com, Inc. 0.19ms from Osasco, BR
5.42.146.224 AS50627 Frosinone Wireless S.R.L. 6.47ms from Rome, IT
178.65.241.208 AS12389 PJSC Rostelecom 1.15ms from Saint Petersburg, RU
92.64.148.128 AS1136 KPN B.V. 1.46ms from Amsterdam, NL
40.67.65.0 AS8075 Microsoft Corporation 1.13ms from Ashburn, US
107.219.84.192 AS7018 AT&T Enterprises, LLC 9.95ms from Atlanta, US
159.254.10.144 AS16509 Amazon.com, Inc. 0.08ms from Auckland, NZ
218.11.243.0 AS4837 CHINA UNICOM China169 Backbone 10.06ms from Beijing, CN
3.30.111.48 AS8987 Amazon Data Services Ireland Ltd 0.58ms from Boardman, US
50.102.2.208 AS5650 Frontier Communications of America, Inc. 7.28ms from Chicago, US
31.49.122.0 AS2856 British Telecommunications PLC 7.29ms from Erith, GB
87.153.122.160 AS3320 Deutsche Telekom AG 4.95ms from Frankfurt am Main, DE
2.241.224.240 AS6805 Telefonica Germany GmbH & Co.OHG 2.20ms from Hamburg, DE

Traceroute

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

$
traceroute -a -n -q1 -m4 74.172.165.1
traceroute to 74.172.165.1 (74.172.165.1): 4 hops max, 52 byte packets
1 [AS749] 11.72.200.193 472.587 ms
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Guangzhou, CN
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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