AT&T Japan K.K. IP addresses, domains and public networks

Country

Assigned AS AS9935, AS18289, AS64016, AS134358, AS134473, AS134530, AS134531, AS134532, AS134533, AS134534, AS134535, AS134536, AS134537, AS138515, AS140232, AS140233, AS140234, AS140235, AS140236, AS140237, AS150810, AS151013, AS151014, AS151015, AS151016, AS151017, AS151018, AS151019, AS151020, AS151021, AS151022, AS151023, AS151024, AS151025, AS151026, AS151027, AS151028, AS151029, AS151030, AS151031, AS151032, AS151033, AS151034, AS151035, AS151036, AS151037, AS151038, AS151039

Updated 05 October 2026

We found 408 IPv4 networks operated by this organization. The first 50 networks are displayed.

Results sorted by network size.

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AT&T Japan K.K

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Network: NMS

CIDR: 166.100.0.0/16

IP Range: 166.100.0.0 - 166.100.255.255

Block size: 65,536

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan LLC Tokyo

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Network: ATT-OPENNET-AP

CIDR: 202.135.0.0/16

IP Range: 202.135.0.0 - 202.135.255.255

Block size: 65,536

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan LLC Tokyo

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Network: ATT-MPN-AP

CIDR: 202.2.128.0/17

IP Range: 202.2.128.0 - 202.2.255.255

Block size: 32,768

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.7.128.0/17

IP Range: 210.7.128.0 - 210.7.255.255

Block size: 32,768

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Service Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 122.248.128.0/18

IP Range: 122.248.128.0 - 122.248.191.255

Block size: 16,384

AT&T Japan K.K

IBM Global Network Operations IBM Japan, Ltd Tokyo

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Network: ATT-MPN-AP

CIDR: 203.163.0.0/18

IP Range: 203.163.0.0 - 203.163.63.255

Block size: 16,384

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan LLC Tokyo

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Network: ATT-OPENNET-AP

CIDR: 203.163.64.0/18

IP Range: 203.163.64.0 - 203.163.127.255

Block size: 16,384

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan LLC

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Network: ATT-OPENNET-AP

CIDR: 202.74.96.0/19

IP Range: 202.74.96.0 - 202.74.127.255

Block size: 8,192

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan LLC Tokyo

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Network: ATT-MPN-AP

CIDR: 203.171.128.0/19

IP Range: 203.171.128.0 - 203.171.159.255

Block size: 8,192

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan LLC Tokyo

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Network: ATT-OPENNET-AP

CIDR: 203.194.64.0/19

IP Range: 203.194.64.0 - 203.194.95.255

Block size: 8,192

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 203.196.96.0/19

IP Range: 203.196.96.0 - 203.196.127.255

Block size: 8,192

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.7.96.0/19

IP Range: 210.7.96.0 - 210.7.127.255

Block size: 8,192

AT&T Japan K.K

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Network: ATT-OPENNET-AP

CIDR: 210.89.0.0/19

IP Range: 210.89.0.0 - 210.89.31.255

Block size: 8,192

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 203.92.208.0/20

IP Range: 203.92.208.0 - 203.92.223.255

Block size: 4,096

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan LLC Tokyo

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Network: ATT-OPENNET-AP

CIDR: 203.196.112.0/20

IP Range: 203.196.112.0 - 203.196.127.255

Block size: 4,096

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.88.0.0/20

IP Range: 210.88.0.0 - 210.88.15.255

Block size: 4,096

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.88.144.0/20

IP Range: 210.88.144.0 - 210.88.159.255

Block size: 4,096

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.88.160.0/20

IP Range: 210.88.160.0 - 210.88.175.255

Block size: 4,096

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.88.240.0/20

IP Range: 210.88.240.0 - 210.88.255.255

Block size: 4,096

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.89.112.0/20

IP Range: 210.89.112.0 - 210.89.127.255

Block size: 4,096

Att_countryalloc SG

AT&T GMIS CUST BLOCK

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Network: ATT_COUNTRYALLOC_SG

CIDR: 122.248.128.0/21

IP Range: 122.248.128.0 - 122.248.135.255

Block size: 2,048

Att_countryalloc HK

AT&T GMIS CUST BLOCK

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Network: ATT_COUNTRYALLOC_HK

CIDR: 122.248.136.0/21

IP Range: 122.248.136.0 - 122.248.143.255

Block size: 2,048

Asia Pacific Operations

AT&T Global Network Services Hong Kong

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Network: ATT-OPENNET-AP

CIDR: 202.2.136.0/21

IP Range: 202.2.136.0 - 202.2.143.255

Block size: 2,048

Asia Pacific Operations

AT&T Global Network Services Australia

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Network: ATT-OPENNET-AP

CIDR: 202.2.144.0/21

IP Range: 202.2.144.0 - 202.2.151.255

Block size: 2,048

Australia Country pre-allocation

Service: ADIG Asia Pacific Operations AT&T Global Network Services

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Network: ATT-OPENNET-AP-AU

CIDR: 202.2.184.0/21

IP Range: 202.2.184.0 - 202.2.191.255

Block size: 2,048

Singapore Country pre-allocation

Service: ADIG Asia Pacific Operations AT&T Global Network Services

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Network: ATT-OPENNET-AP-SG

CIDR: 202.2.192.0/21

IP Range: 202.2.192.0 - 202.2.199.255

Block size: 2,048

India Country pre-allocation

Service: ADIG Asia Pacific Operations AT&T Global Network Services

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Network: ATT-OPENNET-AP-IN

CIDR: 202.2.200.0/21

IP Range: 202.2.200.0 - 202.2.207.255

Block size: 2,048

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.88.176.0/21

IP Range: 210.88.176.0 - 210.88.183.255

Block size: 2,048

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.89.104.0/21

IP Range: 210.89.104.0 - 210.89.111.255

Block size: 2,048

Att_countryalloc JP

AT&T GMIS CUST BLOCK

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Network: ATT_COUNTRYALLOC_JP

CIDR: 122.248.144.0/22

IP Range: 122.248.144.0 - 122.248.147.255

Block size: 1,024

Att_countryalloc JP

AT&T GMIS CUST BLOCK

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Network: ATT_COUNTRYALLOC_JP

CIDR: 122.248.164.0/22

IP Range: 122.248.164.0 - 122.248.167.255

Block size: 1,024

Malaysia Country pre-allocation

Service: ADIG Asia Pacific Operations AT&T Global Network Services

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Network: ATT-OPENNET-AP-MY

CIDR: 202.2.208.0/22

IP Range: 202.2.208.0 - 202.2.211.255

Block size: 1,024

Indonesia Country pre-allocation

Service: ADIG Asia Pacific Operations AT&T Global Network Services

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Network: ATT-OPENNET-AP-ID

CIDR: 202.2.232.0/22

IP Range: 202.2.232.0 - 202.2.235.255

Block size: 1,024

AUSTRALIA Country pre-allocation

Service: ADIG Asia Pacific Operations AT&T Global Network Services

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Network: ATT-OPENNET-AP-AU

CIDR: 202.74.108.0/22

IP Range: 202.74.108.0 - 202.74.111.255

Block size: 1,024

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.88.184.0/22

IP Range: 210.88.184.0 - 210.88.187.255

Block size: 1,024

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Service Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.88.188.0/22

IP Range: 210.88.188.0 - 210.88.191.255

Block size: 1,024

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.88.216.0/22

IP Range: 210.88.216.0 - 210.88.219.255

Block size: 1,024

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.88.236.0/22

IP Range: 210.88.236.0 - 210.88.239.255

Block size: 1,024

AT&T GNS

2-10-1, Toranomon, Minato-ku Tokyo 105-0001, Japan

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Network: JHUBBB

CIDR: N/A

IP Range: 210.88.1.0 - 210.88.3.255

Block size: 768

Att_countryalloc HK

AT&T GMIS CUST BLOCK

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Network: ATT_COUNTRYALLOC_HK

CIDR: 122.248.180.0/23

IP Range: 122.248.180.0 - 122.248.181.255

Block size: 512

TAIWAN Country pre-allocation

Service: ADIG Asia Pacific Operations AT&T Global Network Services

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Network: ATT-OPENNET-AP-TW

CIDR: 122.248.184.0/23

IP Range: 122.248.184.0 - 122.248.185.255

Block size: 512

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.88.220.0/23

IP Range: 210.88.220.0 - 210.88.221.255

Block size: 512

AT&T Japan K.K

Asia Pacific Operations AT&T Global Network Services Japan Tokyo

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Network: ATT-OPENNET-AP

CIDR: 210.89.100.0/23

IP Range: 210.89.100.0 - 210.89.101.255

Block size: 512

Singapore Country pre-allocation

Service: ADIG Asia Pacific Operations AT&T Global Network Services

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Network: ATT-OPENNET-AP-SG

CIDR: 202.2.237.0/24

IP Range: 202.2.237.0 - 202.2.237.255

Block size: 256

Singapore Country pre-allocation

Service: ADIG Asia Pacific Operations AT&T Global Network Services

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Network: ATT-OPENNET-AP-SG

CIDR: 202.2.238.0/24

IP Range: 202.2.238.0 - 202.2.238.255

Block size: 256

Singapore Country pre-allocation

Service: ADIG Asia Pacific Operations AT&T Global Network Services

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Network: ATT-OPENNET-AP-SG

CIDR: 202.2.239.0/24

IP Range: 202.2.239.0 - 202.2.239.255

Block size: 256

AT&T Remote Access

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Network: HK-RAS-NET

CIDR: 202.135.167.0/24

IP Range: 202.135.167.0 - 202.135.167.255

Block size: 256

AT&T Remote Access

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Network: HK-RAS-NET

CIDR: 202.135.172.0/24

IP Range: 202.135.172.0 - 202.135.172.255

Block size: 256

AT&T AGN Node, Corynthian Drive, Albany

Telecommunications

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Network: NZINTIBZ

CIDR: 203.92.213.0/24

IP Range: 203.92.213.0 - 203.92.213.255

Block size: 256

AT&T Managed Firewall Network Based - Sydney

820 Oriole Way Unit 74 Incline Village Incline Village-Crystal Bay, Nevada Communications

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Network: AP-HOSTING

CIDR: 203.92.215.0/24

IP Range: 203.92.215.0 - 203.92.215.255

Block size: 256

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