IP range details

166.123.0.0/16

AS13506 · United States Department of the Treasury

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Summary

Country	United States
Domain	treasury.gov
ASN	AS13506
Registry	arin
Hosted IPs	65,536
ID	US-DEPARTMENT-OF-THE-TREASURY

WHOIS Details

NetHandle:      NET-166-123-0-0-1
OrgID:          UDT-6-Z
Parent:         NET-166-0-0-0-0
NetName:        US-DEPARTMENT-OF-THE-TREASURY
NetRange:       166.123.0.0 - 166.123.255.255
NetType:        allocation
OriginAS:       13506
RegDate:        1993-12-29
Updated:        2024-05-31
Source:         ARIN


OrgID:          UDT-6-Z
OrgName:        United States Department of the Treasury
CanAllocate:    
Street:         OCIO
Street:         1750 Pennsylvania Ave., NW
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20006
RegDate:        2024-05-01
Updated:        2025-03-27
OrgAdminHandle: METZI13-ARIN
OrgTechHandle:  DLS46-ARIN
OrgTechHandle:  METZI13-ARIN
OrgTechHandle:  TIC5-ARIN
OrgAbuseHandle: USTRE-ARIN
OrgNOCHandle:   USTRE-ARIN
OrgRoutingHandle:   TIC5-ARIN
Source:         ARIN


POCHandle:      USTRE-ARIN
IsRole:         Y
LastName:       US-TREASURY-SOC
FirstName:      
Street:         1500 Pennsylvania Avenue
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20220
RegDate:        2025-03-26
Updated:        2025-03-26
OfficePhone:    +1-202-927-9777
Mailbox:        soc@soc.treasury.gov
Source:         ARIN


POCHandle:      DLS46-ARIN
IsRole:         N
LastName:       Smicker
FirstName:      Daniel
Street:         200 Third St
City:           Parkersburg
State/Prov:     WV
Country:        US
PostalCode:     26106
RegDate:        2012-09-05
Updated:        2024-08-22
OfficePhone:    +1-304-480-7779
Mailbox:        ecb-hosting@fiscal.treasury.gov
Source:         ARIN


POCHandle:      TIC5-ARIN
IsRole:         Y
LastName:       TIC
FirstName:      
Street:         200 3rd Street
City:           Parkersburg
State/Prov:     WV
Country:        US
PostalCode:     26101
RegDate:        2024-03-07
Updated:        2025-03-13
OfficePhone:    +1-304-480-6845
Mailbox:        ecb-tic@fiscal.treasury.gov
Source:         ARIN


POCHandle:      METZI13-ARIN
IsRole:         N
LastName:       Metzinger
FirstName:      Timothy
Street:         1750 Pennsylvania Ave. NW
Street:         OCIO/IO
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20006
RegDate:        2025-03-27
Updated:        2025-03-27
OfficePhone:    +1-202-286-9654
Mailbox:        timothy.metzinger@treasury.gov
Source:         ARIN

Hosted domains

There are 4 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
166.123.8.156	usaspending.gov	2
166.123.8.230	iboir.com	1
166.123.231.85	mytreasury.gov	1

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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.

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