Data as of Nov 7, 2026
156.154.16.0/22
No anonymizer space · no proxy exits in 30 daysNeuStar, Inc. · space held by Trans Union, LLC
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 156.154.19.0/24 since Aug 2021 | AS14618 | Hosting | Trans Union, LLC |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
1,024 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 768 | 75% | 1 | |
| Hosting | 256 | 25% | 1 |
Network & registry
Origin network
AS7786
US
- Name
- NeuStar, Inc.
- Type
- Business
- Registered
- Jan 13, 1997
- Domain
- transunion.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Aug 2016 · 10 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS7786 | RADB | Neustar US-East1 | MAINT-AS7786 | Sep 25, 2025 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 156.154.16.0/24 | AS7786 | RADB | NEUSTAR | MAINT-AS7786 | Sep 25, 2025 |
| 156.154.16.0/24 | AS19905 | RADB | SP-NEUSTAR | MAINT-AS7786 | Sep 25, 2025 |
| 156.154.17.0/24 | AS7786 | RADB | NEUSTAR | MAINT-AS7786 | Sep 25, 2025 |
| 156.154.17.0/24 | AS19905 | RADB | SP-NEUSTAR | MAINT-AS7786 | Sep 25, 2025 |
| 156.154.18.0/24 | AS7786 | RADB | NEUSTAR | MAINT-AS7786 | Sep 25, 2025 |
| 156.154.18.0/24 | AS19905 | RADB | SP-NEUSTAR | MAINT-AS7786 | Sep 25, 2025 |
Whois
Registration for this announcement
- Range
- 156.
154. 0. 0 - 156. 154. 33. 255 - Netname
- TUL-7
- Registrant
- Trans Union, LLC
- Organization
- Trans Union, LLC (TUL-7)
- Org address
- 555 W. Adams, Chicago, IL, 60661
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-156-154-0-0-1
- Parent
- NET-156-0-0-0-0
- Created
- Dec 18, 2003
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 18, 2003
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN