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Domains: 332,062,411
Organizations: 3,280,578
Public networks: 10,860,443
Geolocations: 8,545,690
Autonomous Systems: 115,248



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  • Statistics
    Domains: 332,062,411
    Organizations: 3,280,578
    Public networks: 10,860,443
    Geolocations: 8,545,690
    Autonomous Systems: 115,248

Internal Revenue Service

IPv4 IPv6

Networks by country: United States United States (20), Ghana Ghana (1), China China (1)

Assigned AS: AS30313
Updated: 02 November 2025

We found 21 IPv4 networks operated by this organization:
Results sorted by network size.

United States Internal Revenue Service
IRSNET

CIDR: N/A
IP Range: 152.216.0.0 - 152.225.255.255
Block size: 655,360

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United States Internal Revenue Service
INTERNAL23-193

CIDR: 12.43.193.0/24
IP Range: 12.43.193.0 - 12.43.193.255
Block size: 256

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United States Internal Revenue Service
IRSNET11

CIDR: 204.62.146.0/24
IP Range: 204.62.146.0 - 204.62.146.255
Block size: 256

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China Internal Revenue Service
YAGNZHOU-TAX-BUREAU

Yangzhou City Jiangsu Province

CIDR: 61.177.184.160/27
IP Range: 61.177.184.160 - 61.177.184.191
Block size: 32

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United States Internal Revenue Service
INTERNAL93-97-112

CIDR: 12.29.97.112/28
IP Range: 12.29.97.112 - 12.29.97.127
Block size: 16

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United States Internal Revenue Service
INTERNAL82-51-16

CIDR: 12.36.51.16/28
IP Range: 12.36.51.16 - 12.36.51.31
Block size: 16

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United States Internal Revenue Service
INTERNAL31-20-96

CIDR: 12.38.20.96/28
IP Range: 12.38.20.96 - 12.38.20.111
Block size: 16

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United States Internal Revenue Service
INTERNAL31-32-48

CIDR: 12.42.32.48/28
IP Range: 12.42.32.48 - 12.42.32.63
Block size: 16

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United States Internal Revenue Service
INTERNAL45-65-176

CIDR: 12.43.65.176/28
IP Range: 12.43.65.176 - 12.43.65.191
Block size: 16

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United States Internal Revenue Service
INTERNAL93-116-192

CIDR: 12.110.116.192/28
IP Range: 12.110.116.192 - 12.110.116.207
Block size: 16

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United States Internal Revenue Service
INTERNAL63-96-192

CIDR: 12.144.96.192/28
IP Range: 12.144.96.192 - 12.144.96.207
Block size: 16

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United States Internal Revenue Service
INTERNAL92-46-96

CIDR: 12.153.46.96/28
IP Range: 12.153.46.96 - 12.153.46.111
Block size: 16

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United States Internal Revenue Service
INTERNAL63-249-208

CIDR: 12.166.249.208/28
IP Range: 12.166.249.208 - 12.166.249.223
Block size: 16

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United States Internal Revenue Service
QWEST-IAD-IRS7

CIDR: 66.77.65.224/28
IP Range: 66.77.65.224 - 66.77.65.239
Block size: 16

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United States Internal Revenue Service
QWEST-IAD-IRS8

CIDR: 66.77.65.240/28
IP Range: 66.77.65.240 - 66.77.65.255
Block size: 16

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United States Internal Revenue Service
INTERNAL14-36-96

CIDR: 12.25.36.96/29
IP Range: 12.25.36.96 - 12.25.36.103
Block size: 8

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United States Internal Revenue Service
Q0812-65-133-115-184

CIDR: 65.133.115.184/29
IP Range: 65.133.115.184 - 65.133.115.191
Block size: 8

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United States Internal Revenue Service
UU-65-205-34-248

CIDR: 65.205.34.248/29
IP Range: 65.205.34.248 - 65.205.34.255
Block size: 8

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United States Internal Revenue Service
UU-65-205-157-8

CIDR: 65.205.157.8/29
IP Range: 65.205.157.8 - 65.205.157.15
Block size: 8

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United States Internal Revenue Service
SBC07501106813629060412232406

CIDR: 75.11.68.136/29
IP Range: 75.11.68.136 - 75.11.68.143
Block size: 8

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Ghana Internal Revenue Service
IRS

CIDR: 41.222.232.136/30
IP Range: 41.222.232.136 - 41.222.232.139
Block size: 4

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