1. All IP Ranges
  2. 12.0.0.0/8
  3. 12.129.0.0/16
  4. AS40631  | 12.129.82.0/24

12.129.82.0/24

AS40631  ·  Mastec, Inc

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Summary

Country United States
Domain cerf.net
ASN AS40631
Parent Range 12.0.0.0/8
Registry ARIN
ID ATTENS-ATL-1

WHOIS Details

NetHandle:      NET-12-129-64-0-1
OrgID:          CERF
Parent:         NET-12-0-0-0-1
NetName:        ATTENS-ATL-1
NetRange:       12.129.64.0 - 12.129.127.255
NetType:        reallocation
RegDate:        2002-01-30
Updated:        2021-02-05
TechHandle:     YANLI5-ARIN
TechHandle:     ZS44-ARIN
Source:         ARIN


OrgID:          CERF
OrgName:        CERFnet
CanAllocate:    
Street:         5738 Pacific Center Blvd
City:           San Diego
State/Prov:     CA
Country:        US
PostalCode:     92121
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:        1989-04-18
Updated:        2024-11-25
OrgAdminHandle: NETWO10-ARIN
OrgTechHandle:  DRU40-ARIN
OrgTechHandle:  KRAJN2-ARIN
OrgTechHandle:  NAJMI1-ARIN
OrgTechHandle:  NETWO10-ARIN
OrgTechHandle:  STRAN154-ARIN
OrgTechHandle:  ZS44-ARIN
OrgAbuseHandle: NETWO10-ARIN
OrgNOCHandle:   DRU40-ARIN
OrgNOCHandle:   LEITM2-ARIN
OrgNOCHandle:   NAJMI1-ARIN
OrgNOCHandle:   STRAN154-ARIN
OrgRoutingHandle:   DRU40-ARIN
OrgRoutingHandle:   LEITM2-ARIN
OrgRoutingHandle:   ROUTI59-ARIN
Source:         ARIN


POCHandle:      KRAJN2-ARIN
IsRole:         N
LastName:       Krajnakova
FirstName:      Henrieta
Street:         Tomasikova 64, Bratislava
City:           Bratislava
State/Prov:     
Country:        SK
PostalCode:     83104
RegDate:        2024-10-21
Updated:        2024-10-21
OfficePhone:    +00000000
Mailbox:        henrieta.krajnakova@intl.att.com
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:      DRU40-ARIN
IsRole:         N
LastName:       Rueegg
FirstName:      Daniel
Street:         Rautistr. 75
City:           Zurich
State/Prov:     ZH
Country:        CH
PostalCode:     8048
RegDate:        2007-07-30
Updated:        2024-10-23
OfficePhone:    +41 1 4957899
Mailbox:        daniel.rueegg@intl.att.com
Mailbox:        dr6348@att.com
Source:         ARIN


POCHandle:      YANLI5-ARIN
IsRole:         N
LastName:       Yan
FirstName:      Li 
Street:         200 S Laurel Ave Bldg A, Room A3-1G24
City:           Middletown
State/Prov:     NJ
Country:        US
PostalCode:     07748
RegDate:        2020-07-21
Updated:        2021-07-21
OfficePhone:    +1-732-420-9441
Mailbox:        ly6264@att.com
Source:         ARIN


POCHandle:      NAJMI1-ARIN
IsRole:         N
LastName:       Najmikova
FirstName:      Ivana
Street:         Einsteinova 24
City:           Bratislava
State/Prov:     Bratislava
Country:        SK
PostalCode:     85101
RegDate:        2024-06-01
Updated:        2025-07-31
OfficePhone:    +421 250210682
Mailbox:        ivana.najmikova@intl.att.com
Source:         ARIN


POCHandle:      NETWO10-ARIN
IsRole:         Y
LastName:       Network Provisioning
FirstName:      
Street:         5732 Pacific Center Blvd
City:           San Diego
State/Prov:     CA
Country:        US
PostalCode:     92121
RegDate:        2002-09-04
Updated:        2025-06-11
OfficePhone:    +1-877-789-2877
Mailbox:        dr6348@att.com
Mailbox:        er3254@att.com
Mailbox:        ipadmin@att.com
Source:         ARIN


POCHandle:      STRAN154-ARIN
IsRole:         N
LastName:       Stranska
FirstName:      Jana
Street:         64 Tomasikova Street
City:           Bratislava
State/Prov:     Bratislava
Country:        SK
PostalCode:     831 04
RegDate:        2024-06-01
Updated:        2025-06-02
OfficePhone:    +421 233225331
Mailbox:        jana.stranska1@intl.att.com
Source:         ARIN


POCHandle:      LEITM2-ARIN
IsRole:         N
LastName:       Leitmanova
FirstName:      Lucia
Street:         Tomasikova 64
City:           Bratislava
State/Prov:     
Country:        SK
PostalCode:     831 04 
RegDate:        2021-02-15
Updated:        2024-02-14
OfficePhone:    +421 2 332 25571  
Mailbox:        rm-ip_allocator@intl.att.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 12.129.82.0/24

Range ASN Company Num of IPs
12.0.0.0/8 AS11219 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS11409 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS11760 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS11806 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS11924 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS12104 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 AS13342 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 AS13652 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13740 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 AS140237 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14047 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14056 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 AS14748 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 AS16669 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 AS17030 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 AS17096 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 AS19240 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS19307 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS19524 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 AS20452 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 AS22106 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 AS22260 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS22773 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS23087 AT&T Enterprises, LLC 16,777,216

Nearby Ranges

BGP prefixes that overlap with 12.129.0.0/16

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 AS11409 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS11760 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS11806 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS11924 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS12104 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 AS13342 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 AS13652 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS13740 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 AS140237 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14047 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS14056 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 AS14748 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 AS16669 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 AS17030 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 AS17096 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 AS19240 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS19307 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS19524 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 AS20452 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 AS22106 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 AS22260 AT&T Enterprises, LLC 16,777,216
12.0.0.0/8 AS10721 AT&T Enterprises, LLC 16,777,216

Hosted domains

There are no domains currently hosted on this ASN.

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

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
85.144.4.184 AS50266 Odido Netherlands B.V. 3.97ms from Amsterdam, NL
125.238.125.184 AS4771 Spark New Zealand Trading Ltd. 6.04ms from Auckland, NZ
178.40.140.24 AS6855 Slovak Telekom, a.s. 1.59ms from Bratislava, SK
62.231.99.200 AS8708 DIGI ROMANIA S.A. 0.41ms from Bucharest, RO
93.224.236.184 AS3320 Deutsche Telekom AG 4.39ms from Duesseldorf, DE
3.122.135.152 AS16509 Amazon.com, Inc. 0.14ms from Frankfurt am Main, DE
159.148.137.8 AS16509 Amazon.com, Inc. 0.65ms from Frankfurt am Main, DE
134.155.221.152 AS553 BelWue-Koordination 5.63ms from Frankfurt am Main, DE
212.174.229.72 AS9121 Turk Telekomunikasyon Anonim Sirketi 1.35ms from Istanbul, TR
176.102.27.152 AS196767 INMART.UA LLC 10.68ms from Krasnodar, RU
92.48.125.152 AS29550 Team Blue Carrier Limited 1.60ms from London, GB
130.194.76.232 AS56132 Monash University, 3.64ms from Melbourne, AU
73.228.167.24 AS7922 Comcast Cable Communications, LLC 6.40ms from Minneapolis, US
212.93.105.232 AS24921 Latvijas Mobilais Telefons SIA 0.35ms from Riga, LV
152.157.178.200 AS10430 Washington State K-20 Telecommunications Network 6.78ms from Seattle, US
132.226.226.248 AS31898 Oracle Corporation 0.18ms from Seoul, KR
123.243.73.248 AS7545 TPG Telecom Limited 0.55ms from Sydney, AU
159.117.143.88 AS133847 Anpple Tech Enterprise 0.37ms from Taipei, TW
77.125.133.72 AS12400 Partner Communications Ltd. 1.61ms from Tel Aviv, IL
69.29.169.40 AS22561 CenturyLink Communications, LLC 12.46ms from Atlanta, US
52.25.187.248 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
18.219.154.56 AS16509 Amazon.com, Inc. 0.19ms from Columbus, US
155.108.21.8 AS398770 Twisted Computing Incorporated 0.36ms from Frankfurt am Main, DE
89.247.203.168 AS8881 1&1 Versatel Deutschland GmbH 8.55ms from Frankfurt am Main, DE
77.54.67.24 AS12353 Vodafone Portugal 6.78ms from Lisbon, PT

Traceroute

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

$
traceroute -a -n -q1 -f7 -m14 12.129.82.179
traceroute to 12.129.82.179 (12.129.82.179): 14 hops max, 52 byte packets
7 [AS2914] 129.250.3.44 36.826 ms
8 [AS2914] 129.250.3.60 129.403 ms
9 [AS2914] 129.250.2.145 124.257 ms
10 [AS7018] 192.205.37.17 135.485 ms
11 [AS7018] 32.130.106.190 198.273 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Seoul, KR
On

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