12.5.186.0/23

AS109 · CISCO SYSTEMS, INC.

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Summary

Country	United States
Domain	att.com
ASN	AS109
Registry	ARIN
ID	ATT

WHOIS Details

NetHandle:      NET-12-0-0-0-1
OrgID:          AEL-360
Parent:         NET-12-0-0-0-0
NetName:        ATT
NetRange:       12.0.0.0 - 12.255.255.255
NetType:        allocation
RegDate:        1983-08-23
Updated:        2025-03-18
Source:         ARIN


OrgID:          AEL-360
OrgName:        AT&T Enterprises, LLC
CanAllocate:    
Street:         5302 HARRY HINES BLVD
City:           Dallas
State/Prov:     TX
Country:        US
PostalCode:     75235
RegDate:        2024-11-22
Updated:        2025-08-13
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

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
86.82.106.247	AS1136 KPN B.V.	`1.14ms` from Amsterdam, NL
39.53.222.247	AS17557 Pakistan Telecommunication Company Limited	`2.16ms` from Karachi, PK
81.153.235.247	AS2856 British Telecommunications PLC	`4.33ms` from London, GB
47.181.198.55	AS5650 Frontier Communications of America, Inc.	`2.00ms` from Los Angeles, US
187.202.55.167	AS8151 UNINET	`1.07ms` from Mexico City, MX
94.28.228.231	AS12389 PJSC Rostelecom	`4.21ms` from Moscow, RU
49.212.213.167	AS9371 SAKURA Internet Inc.	`0.36ms` from Osaka, JP
89.81.239.87	AS5410 Bouygues Telecom SA	`13.60ms` from Paris, FR
189.183.97.167	AS8151 UNINET	`16.60ms` from Santiago de Queretaro, MX
163.229.148.71	AS4766 Korea Telecom	`7.60ms` from Seoul, KR
121.158.250.87	AS4766 Korea Telecom	`4.59ms` from Seoul, KR
13.115.122.231	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
120.51.53.87	AS2519 ARTERIA Networks Corporation	`3.20ms` from Tokyo, JP
182.170.29.55	AS2527 Sony Network Communications Inc.	`3.10ms` from Tokyo, JP
60.170.225.231	AS4134 CHINANET-BACKBONE	`9.93ms` from Wuhan, CN
182.117.42.135	AS4837 CHINA UNICOM China169 Backbone	`7.63ms` from Zhengzhou, CN
121.17.252.151	AS4837 CHINA UNICOM China169 Backbone	`8.15ms` from Beijing, CN
45.242.185.119	AS24863 Link Egypt (Link.NET)	`19.11ms` from Cairo, EG
202.101.98.55	AS4134 CHINANET-BACKBONE	`4.39ms` from Fuzhou, CN
39.175.240.247	AS56041 China Mobile communications corporation	`12.52ms` from Hangzhou, CN
194.61.16.215	AS35394 Cable Aireworld S.A.U.	`8.71ms` from Madrid, ES
39.67.76.119	AS4837 CHINA UNICOM China169 Backbone	`7.71ms` from Qingdao, CN
189.189.202.71	AS8151 UNINET	`4.21ms` from Santiago de Queretaro, MX
45.60.175.231	AS19551 Incapsula Inc	`0.14ms` from Taipei, TW
36.110.90.135	AS4847 China Networks Inter-Exchange	`2.69ms` from Tianjin, CN

Traceroute

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

traceroute -a -n -q1 -m7 12.5.186.115

traceroute to 12.5.186.115 (12.5.186.115): 7 hops max, 52 byte packets

1 [AS15169] 142.250.225.129 32.275 ms

2 [AS15169] 172.253.78.234 32.339 ms

3 *

4 [AS109] 128.107.2.9 34.463 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Toronto, CA

On August 22nd 2025

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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