204.60.51.0/24

AS20442 · Yale-New Haven Health Services Corporation

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Summary

Country	United States
Domain	att.com
ASN	AS20442
Parent Range	204.60.0.0/16
Registry	ARIN
ID	SBCIS-SIS80-1005

WHOIS Details

NetHandle:      NET-204-60-0-0-1
OrgID:          AEL-360
Parent:         NET-204-0-0-0-0
NetName:        SBCIS-SIS80-1005
NetRange:       204.60.0.0 - 204.60.255.255
NetType:        allocation
RegDate:        1994-06-16
Updated:        2024-12-05
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:         208 S. Akard St.
City:           Dallas
State/Prov:     TX
Country:        US
PostalCode:     75202
RegDate:        2000-05-17
Updated:        2026-02-04
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

Overlapping Ranges

BGP prefixes that contain 204.60.51.0/24

Range	ASN	Company	Num of IPs
204.60.0.0/16	AS7018	AT&T Enterprises, LLC	65,536
204.60.0.0/16	AS27025	AT&T Enterprises, LLC	65,536
204.60.0.0/16	AS20442	AT&T Enterprises, LLC	65,536

Nearby Ranges

BGP prefixes that overlap with 204.60.0.0/16

Range	ASN	Company	Num of IPs
204.60.0.0/16	AS20442	AT&T Enterprises, LLC	65,536
204.60.0.0/16	AS27025	AT&T Enterprises, LLC	65,536
204.60.0.0/16	AS7018	AT&T Enterprises, LLC	65,536
204.60.84.0/24	AS54420	COCC	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
187.140.167.120	AS8151 UNINET	`5.55ms` from Guadalajara, MX
63.193.55.168	AS7018 AT&T Enterprises, LLC	`3.59ms` from Los Angeles, US
220.253.153.8	AS18371 Neighbourhood Cable	`4.71ms` from Melbourne, AU
68.59.39.8	AS7922 Comcast Cable Communications, LLC	`6.23ms` from Minneapolis, US
180.105.184.40	AS4134 CHINANET-BACKBONE	`8.02ms` from Nanjing, CN
94.239.218.88	AS5410 Bouygues Telecom SA	`2.10ms` from Paris, FR
112.225.13.184	AS4837 CHINA UNICOM China169 Backbone	`1.48ms` from Qingdao, CN
109.175.46.184	AS9146 BIHNET Autonomus System	`1.59ms` from Sarajevo, BA
124.166.248.56	AS4837 CHINA UNICOM China169 Backbone	`4.22ms` from Taiyuan, CN
89.229.223.248	AS21021 Multimedia Polska Sp. z o.o.	`16.61ms` from Warsaw, PL
178.198.182.136	AS3303 Swisscom (Switzerland) Ltd	`2.34ms` from Zuerich, CH
13.80.119.152	AS8075 Microsoft Corporation	`0.26ms` from Amsterdam, NL
64.19.118.88	AS30029 Dobson Technologies - Transport and Telecom Solutions, LLC	`11.58ms` from Dallas, US
169.224.147.104	AS16509 Amazon.com, Inc.	`3.81ms` from Dubai, AE
82.26.123.168	AS3320 Deutsche Telekom AG	`0.47ms` from Frankfurt am Main, DE
128.42.199.200	AS8 Rice University	`1.04ms` from Houston, US
65.70.237.72	AS7018 AT&T Enterprises, LLC	`8.16ms` from Kansas City, US
217.181.36.200	AS5503 RM Education Ltd	`0.31ms` from London, GB
172.93.44.40	AS25820 IT7 Networks Inc	`0.35ms` from Los Angeles, US
97.190.138.184	AS6167 Verizon Business	`13.46ms` from Los Angeles, US
147.45.185.72	AS9123 JSC TIMEWEB	`0.74ms` from Moscow, RU
124.77.24.104	AS4812 China Telecom (Group)	`2.54ms` from Shanghai, CN
77.29.160.168	AS6821 Makedonski Telekom AD-Skopje	`4.97ms` from Skopje, MK
182.171.145.216	AS2527 Sony Network Communications Inc.	`6.86ms` from Tokyo, JP
38.165.233.8	AS263812 SONDATECH S.A.S.	`0.02ms` from Asuncion, PY

Traceroute

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

traceroute -a -n -q1 -f3 -m7 204.60.51.3

traceroute to 204.60.51.3 (204.60.51.3): 7 hops max, 52 byte packets

3 [AS749] 11.88.174.53 1.829 ms

4 [] 117.49.34.181 1.445 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Jining, CN

On March 20th 2026

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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