1. All IP Ranges
  2. 12.0.0.0/8
  3. 12.203.0.0/16
  4. AS22034  | 12.203.197.0/24

12.203.197.0/24

AS22034  ·  MCMASTER CARR SUPPLY COMPANY

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Summary

Country United States
Domain att.com
ASN AS22034
Parent Range 12.0.0.0/8
Registry ARIN
ID ATTWORLD25

WHOIS Details

NetHandle:      NET-12-203-0-0-1
OrgID:          ATTW
Parent:         NET-12-0-0-0-1
NetName:        ATTWORLD25
NetRange:       12.203.0.0 - 12.203.255.255
NetType:        reallocation
Comment:        This block is static, not dynamic.
RegDate:        2010-05-04
Updated:        2010-05-04
Source:         ARIN


OrgID:          ATTW
OrgName:        AT&T Services, Inc.
CanAllocate:    
Street:         200 S. Laurel AVE.
City:           MIDDLETOWN
State/Prov:     NJ
Country:        US
PostalCode:     07748
Comment:        Contact AT&T Abuse ( abuse@att.net ) for policy abuse issues.
Comment:        All policy abuse issues sent to other POCs will be disregarded.
RegDate:        1970-01-01
Updated:        2024-11-25
OrgAdminHandle: ZS44-ARIN
OrgTechHandle:  ICC-ARIN
OrgTechHandle:  IPSWI-ARIN
OrgAbuseHandle: ATTAB-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:      IPSWI-ARIN
IsRole:         Y
LastName:       IP SWIP
FirstName:      
Street:         One Corporate Place South
City:           Piscataway
State/Prov:     NJ
Country:        US
PostalCode:     08854
RegDate:        2002-09-24
Updated:        2025-07-03
OfficePhone:    +1-888-613-6330
Mailbox:        help@ip.att.net
Mailbox:        swipid@icorefep1.ims.att.com
Mailbox:        swipid@icorefep2.noc.att.com
Mailbox:        swipid@icorefep3.ims.att.com
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


POCHandle:      ATTAB-ARIN
IsRole:         Y
LastName:       ATT Abuse
FirstName:      
Street:         4625 Creekstone Drive
City:           Durham
State/Prov:     NC
Country:        US
PostalCode:     27703
RegDate:        2002-09-24
Updated:        2025-07-03
OfficePhone:    +1-999-999-9999
Mailbox:        abuse@att.net
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 12.203.197.0/24

Range ASN Company Num of IPs
12.0.0.0/8 AS109 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS11219 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS12169 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13457 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13624 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13641 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13750 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13938 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14528 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14561 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14792 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14858 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS15007 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS15343 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS16571 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS16618 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS16914 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS17058 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS17242 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS18961 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS19111 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS20034 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS20217 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS20242 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS21569 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS22040 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS22065 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS22234 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS23087 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS23349 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS23453 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS23521 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS2386 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS25932 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS26881 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS27195 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS29767 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS30520 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS31921 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS32258 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS32319 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS32672 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS32892 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS33233 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS36111 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS36136 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS393469 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS393505 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS393691 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS394733 AT&T Enterprises, LLC 16,777,216

Nearby Ranges

BGP prefixes that overlap with 12.203.0.0/16

Range ASN Company Num of IPs
12.0.0.0/8 AS8119 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS109 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS11219 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS12169 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13457 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13624 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13641 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13750 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13938 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14528 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14561 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14792 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14858 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS15007 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS15343 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS16571 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS16618 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS16914 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS17058 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS17242 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS18961 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS19111 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS20034 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS20217 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS20242 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS21569 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS22040 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS22065 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS22234 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS23087 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS23349 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS23453 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS23521 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS2386 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS25932 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS26881 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS27195 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS29767 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS30520 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS31921 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS32258 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS32319 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS32672 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS32892 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS33233 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS36111 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS36136 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS393469 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS393505 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS393691 AT&T Enterprises, LLC 16,777,216

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Read more

Pingable IPs

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

IP Address ASN Details
12.203.197.58 AS22034 MCMASTER CARR SUPPLY COMPANY 9.04ms from Chicago, 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
71.9.190.56 AS20115 Charter Communications LLC 15.08ms from Atlanta, US
35.88.199.184 AS16509 Amazon.com, Inc. 0.29ms from Boardman, US
84.192.7.8 AS6848 Telenet BV 6.09ms from Brussels, BE
107.10.208.136 AS10796 Charter Communications Inc 12.92ms from Cleveland, US
195.244.245.232 AS5605 NetUSE AG 0.42ms from Frankfurt am Main, DE
222.221.60.88 AS4134 CHINANET-BACKBONE 12.77ms from Guiyang, CN
171.237.97.56 AS7552 Viettel Group 2.90ms from Hanoi, VN
123.30.223.120 AS45899 VNPT Corp 2.32ms from Ho Chi Minh City, VN
122.178.58.248 AS24560 Bharti Airtel Ltd., Telemedia Services 1.93ms from Hyderabad, IN
92.26.207.56 AS13285 TalkTalk Communications Limited 6.17ms from London, GB
77.224.98.72 AS12430 VODAFONE ESPANA S.A.U. 16.60ms from Madrid, ES
82.159.34.216 AS6739 VODAFONE ONO, S.A. 4.96ms from Madrid, ES
177.128.175.216 AS52523 COMPANHIA PAULISTA DE FORCA E LUZ 2.74ms from Osasco, BR
84.234.153.120 AS29695 Lyse Tele AS 6.71ms from Oslo, NO
64.176.18.88 AS20473 The Constant Company, LLC 0.18ms from Santiago, CL
43.108.10.120 AS45102 Alibaba (US) Technology Co., Ltd. 0.78ms from Seoul, KR
13.113.44.216 AS16509 Amazon.com, Inc. 0.17ms from Tokyo, JP
116.209.26.120 AS4134 CHINANET-BACKBONE 3.02ms from Wuhan, CN
186.83.74.248 AS10620 Telmex Colombia S.A. 8.46ms from Bogotá, CO
177.91.38.120 AS263438 CASTROLANDA - COOPERATIVA AGROINDUSTRIAL LTDA 3.08ms from Curitiba, BR
97.178.216.200 AS6167 Verizon Business 17.65ms from Denver, US
54.247.92.248 AS16509 Amazon.com, Inc. 0.17ms from Dublin, IE
3.248.141.184 AS16509 Amazon.com, Inc. 0.11ms from Dublin, IE
87.144.218.72 AS3320 Deutsche Telekom AG 7.31ms from Frankfurt am Main, DE
220.231.252.8 AS134774 CHINANET Guangdong province Shenzhen MAN network 1.57ms from Guangzhou, CN

Traceroute

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

$
traceroute -a -n -q1 -f2 -m13 12.203.197.208
traceroute to 12.203.197.208 (12.203.197.208): 13 hops max, 52 byte packets
2 [AS9044] 82.220.32.36 3.498 ms
3 *
4 *
5 [AS174] 130.117.49.165 4.979 ms
6 *
7 *
8 [AS174] 154.54.63.70 31.359 ms
9 *
10 [AS174] 66.28.4.182 94.372 ms
11 *
12 *
13 *
Measurement taken from IPinfo ProbeNet in Solothurn, CH
On

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