Data as of Nov 8, 2026
216.23.128.0/19
No anonymizer space · no proxy exits in 30 daysZayo Bandwidth
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 216.23.128.0/19 | 8,192 | ZAYO-CAN-18 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Jul 21, 1998 | abuse@ |
| └ 216. | 512 | IWBC-05 | unknown | — | — | — |
| └ 216.23.136.12/30 | 4 | NET-216-23-136-12-30 | unknown | — | — | — |
| └ 216.23.136.160/28 | 16 | NET-216-23-136-160-28 | unknown | — | — | — |
| └ 216. | 512 | IWBC-04 | unknown | — | — | — |
| └ 216.23.144.192/27 | 32 | IWBC-WSPTA2 | unknown | — | — | — |
| └ 216. | 24 | BAREMETAL-01 | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
8,192 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 7,880 | 96% | 4 | |
| Business | 312 | 3.8% | 3 |
Network & registry
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 this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Sep 2021 · 5.2 yr
- Origin networks
- 2
- Last change of origin
- Sep 2021
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 216.23.128.0/19 | AS6461 | /19 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 216.
23. 128. 0/ 19 - Netname
- ZAYO-CAN-18
- Registrant
- Zayo Bandwidth
- Organization
- Zayo Bandwidth (ZAYOB)
- Org address
- 1401 Wynkoop St., Denver, CO, 80202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-216-23-128-0-1
- Parent
- NET-216-0-0-0-0
- Created
- Jul 21, 1998
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 21, 1998
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN