Data as of Nov 4, 2026
81.28.18.16/29
No anonymizer space · no proxy exits in 30 daysVerizon Business · space held by Verizon Czech s.r.o.
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 81.28.16.0/20 | 4,096 | CZ-UUNET-20060316 | Verizon Czech s.r.o. (ORG-UA4-RIPE) · CZ | ALLOCATED PA | Mar 16, 2006 | abuse. |
| └ 81.28.18.16/29 | 8 | VZ-81-28-18-16 | IBM United Kingdom Limited | ASSIGNED PA | Apr 15, 2025 | abuse. via CZ-UUNET-20060316 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 81.28.16.0/20
- Prefix
- 81.28.16.0/20
- Announced by
- AS702 Verizon Business
- Type
- Internet provider
- RPKI
- No RPKI
- Netname
- CZ-UUNET-20060316
- Registrant
- Verizon Czech s.r.o.
- RIR
- RIPE NCC
Origin network
AS702
US
- Name
- Verizon Business
- Type
- Internet provider
- Registered
- Aug 3, 1990
- Domain
- verizonbusiness.com
- Website
- www.verizon.com/business/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 81.28.16.0/20
81.28.16.0/20
Routing history
- Pattern
- Stable
- First seen
- Feb 2007
- Current origin since
- Feb 2007 · 20 yr
- Origin networks
- 1
IRR
Route objects on 81.28.16.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS702 | RIPE | CZ-UUNET-20060316 | WCOM-EMEA-RICE-MNT | Nov 12, 2010 |
Whois
Registration for this announcement
- Range
- 81.
28. 16. 0/ 20 - Netname
- CZ-UUNET-20060316
- Registrant
- Verizon Czech s.r.o.
- Registrant country
- CZ
- Organization
- Verizon Czech s.r.o. (ORG-UA4-RIPE)
- Org country
- CZ
- Type
- ALLOCATED PA
- Created
- Mar 16, 2006
- Updated
- Nov 2, 2022
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- CZ
- Delegated
- Mar 16, 2006
- Status
- assigned
Report abuse
Abuse contact
- abuse.
emea@ verizon. com - Name
- Abuse Verizon EMEA
- Handle
- AVE253-RIPE