Data as of Nov 6, 2026
192.203.56.0/24
No anonymizer space · no proxy exits in 30 daysCadence Design Systems, Inc. · space held by Verizon Business
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 192.203.48.0/20 since Apr 2006 | AS701 | Internet provider | Verizon Business |
Network & registry
Origin network
AS11829
US
- Name
- Cadence Design Systems, Inc.
- Type
- Business
- Registered
- Jan 5, 1999
- Domain
- cadence.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS11829 | ARIN | Verizon Internet Services | MNT-MCICS | Aug 27, 2021 |
Whois
Registration for this announcement
- Range
- 192.
203. 45. 0 - 192. 203. 76. 255 - Netname
- NETBLK-UUNETCUSC
- Registrant
- Verizon Business
- Organization
- Verizon Business (MCICS)
- Org address
- 22001 Loudoun County Pkwy, Ashburn, VA, 20147
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-192-203-45-0-1
- Parent
- NET-192-0-0-0-0
- Created
- Aug 4, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 4, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
verizon. com - Name
- Abuse
- Phone
- +1-800-900-0241
- Handle
- ABUSE5603-ARIN