Data as of Nov 11, 2026
31.99.0.0/24
No anonymizer space · no proxy exits in 30 daysZayo Bandwidth · space held by Zayo Group UK Limited
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 |
|---|---|---|---|---|---|---|
| 31.99.0.0/18 | 16,384 | UK-ABOVENET-20101125 | Zayo Group UK Limited (ORG-AUL1-RIPE) · GB | ALLOCATED PA | Nov 7, 2025 | zayoabuse@ |
| └ 31.99.0.0/24 | 256 | Fox_ | unknown | ASSIGNED PA | Jan 20, 2026 | zayoabuse@ via UK-ABOVENET-20101125 |
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 31.99.0.0/18
- Prefix
- 31.99.0.0/18
- Announced by
- AS6461 Zayo Bandwidth
- Type
- Internet provider
- RPKI
- RPKI valid
- Netname
- UK-ABOVENET-20101125
- Registrant
- Zayo Group UK Limited
- RIR
- RIPE NCC
Origin network
AS6461
US
- Name
- Zayo Bandwidth
- Type
- Internet provider
- Registered
- Apr 22, 1996
- Domain
- zayo.com
- Website
- www.zayo.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 31.99.0.0/18
31.99.0.0/18
Routing history
- Pattern
- Stable
- First seen
- Dec 2025
- Current origin since
- Dec 2025 · 11 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 31.99.0.0/18 | AS6461 | /18 | RIPE | RPKI valid |
IRR
Route objects on 31.99.0.0/18
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS6461 | RIPE | Zayo Europe | ABOVENET-MNT | Nov 7, 2025 |
Whois
Registration for this announcement
- Range
- 31.
99. 0. 0/ 18 - Netname
- UK-ABOVENET-20101125
- Registrant
- Zayo Group UK Limited
- Registrant country
- GB
- Organization
- Zayo Group UK Limited (ORG-AUL1-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Nov 7, 2025
- Updated
- Sep 4, 2026
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Nov 25, 2010
- Status
- assigned
Report abuse
Abuse contact
- zayoabuse@
zayo. com - Name
- Abuse-C Role
- Handle
- AR17485-RIPE