Data as of Nov 11, 2026
170.110.0.0/16
No anonymizer space · no proxy exits in 30 daysU.S. Department of Commerce, HQ and ITA
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 170.110.247.0/24 since Jul 2025 | AS33343 | Business | U.S. Department of Commerce, HQ and ITA | |
| 170.110.250.0/24 since Apr 2025 | AS8075 | Hosting | U.S. Department of Commerce, HQ and ITA |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 170.110.0.0/16 | 65,536 | ITA-B | U.S. Department of Commerce, HQ and ITA (UDCI-Z) · US | Direct Allocation | Apr 11, 1994 | arinpoc@ |
| └ 170.110.247.0/24 | 256 | DOC-AZURE-BYOIP-CLOUDFLARE | U.S. Department of Commerce, HQ and ITA (UDCI) · US | Reassigned | Jul 25, 2025 | — |
| └ 170.110.250.0/24 | 256 | DOC-AZURE-BYOIP | U.S. Department of Commerce, HQ and ITA (UDCI) · US | Reassigned | Jan 23, 2025 | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
65,536 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 65,280 | >99% | 4 | |
| Hosting | 256 | 0.39% | 1 |
Network & registry
Origin network
AS33343
US
- Name
- U.S. Department of Commerce, HQ and ITA
- Type
- Business
- Registered
- Jul 15, 2016
- Domain
- commerce.gov
- Industry
- Government and Regulatory Agencies, Administrations, Departments, and Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Dec 2017 · 8.9 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 170.110.0.0/16 | AS33343 | /16 | ARIN | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS33343 | ARIN | DOC HCHB | MNT-UDCI-Z | Feb 25, 2025 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 170.110.229.0/24 | AS12076 | ARIN | DOC HCHB | MNT-UDCI-Z | Feb 25, 2025 |
| 170.110.254.0/24 | AS3477 | ARIN | DOC HCHB | MNT-UDCI-Z | Feb 25, 2025 |
Whois
Registration for this announcement
- Range
- 170.
110. 0. 0/ 16 - Netname
- ITA-B
- Registrant
- U.S. Department of Commerce, HQ and ITA
- Organization
- U.S. Department of Commerce, HQ and ITA (UDCI-Z)
- Org address
- ITA OCIO HCHB 48002, Washington, DC, 20230
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-170-110-0-0-1
- Parent
- NET-170-0-0-0-0
- Created
- Apr 11, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 11, 1994
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN