Data as of Nov 5, 2026
156.42.16.0/20
No anonymizer space · no proxy exits in 30 daysMaricopa County Government · space held by Maricopa County
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Aug 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 156.42.0.0/19 since Sep 2021 | AS203 | Business | Maricopa County | |
| 156.42.0.0/16 since May 2005 | AS4211 | Business | Maricopa County |
Network & registry
Origin network
AS4211
US
- Name
- Maricopa County Government
- Type
- Business
- Registered
- Jan 6, 1995
- Domain
- maricopa.gov
- Industry
- Government and Public Administration
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2026
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 156.
42. 0. 0/ 16 - Netname
- MARICOPA1
- Registrant
- Maricopa County
- Organization
- Maricopa County (MARICO)
- Org address
- 301 W. Jefferson, Phoenix, AZ, 85003
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-156-42-0-0-1
- Parent
- NET-156-0-0-0-0
- Created
- Dec 9, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 9, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
maricopa. gov - Name
- Moore, Aaron
- Phone
- +1-602-506-4357
- Handle
- MOORE388-ARIN