Data as of Nov 9, 2026
209.146.128.0/17
No anonymizer space · no proxy exits in 30 daysZayo Bandwidth
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 209.146.153.0/24 since Nov 2021 | AS15290 | Internet provider | Zayo Bandwidth | |
| 209.146.166.0/24 since May 2005 | AS15290 | Internet provider | Zayo Bandwidth | |
| 209.146.169.0/24 since May 2005 | AS15290 | Internet provider | Zayo Bandwidth | |
| 209.146.181.0/24 since May 2005 | AS15290 | Internet provider | Zayo Bandwidth | |
| 209.146.198.0/24 since May 2005 | AS15290 | Internet provider | Zayo Bandwidth | |
| 209.146.220.0/24 since Sep 2021 | AS15290 | Internet provider | Zayo Bandwidth | |
| 209.146.234.0/24 since May 2005 | AS15290 | Internet provider | Zayo Bandwidth | |
| 209.146.237.0/24 since Sep 2021 | AS15290 | Internet provider | Zayo Bandwidth | |
| 209.146.238.0/24 since May 2005 | AS15290 | Internet provider | Zayo 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 |
|---|---|---|---|---|---|---|
| 209.146.128.0/17 | 32,768 | ZAYO-CAN-12 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Oct 8, 1997 | abuse@ |
| └ 209.146.176.160/27 | 32 | NETCOM-SOLCORP | unknown | — | — | — |
| └ 209.146.178.32/27 | 32 | NETCOM-TIMESTEP | unknown | — | — | — |
| └ 209.146.182.108/30 | 4 | NET-421254-209-146-182-108-30 | unknown | — | — | — |
| └ 209.146.182.112/29 | 8 | NET-0-209-146-182-112-29 | unknown | — | — | — |
| └ 209.146.241.224/27 | 32 | NET-209-146-241-224-27 | unknown | — | — | — |
| └ 209.146.247.0/24 | 256 | NET-209-146-247-0-24 | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
32,768 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 31,936 | 97% | 21 | |
| Residential | 512 | 1.6% | 2 | |
| Business | 320 | 0.98% | 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 |
|---|---|---|---|---|
| 209.146.128.0/17 | AS6461 | /17 | ARIN | RPKI valid |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 209.146.128.0/19 | AS6996 | BELL | NETCOM-CA-BLK2 | BELL-RC | Oct 22, 1997 |
Whois
Registration for this announcement
- Range
- 209.
146. 128. 0/ 17 - Netname
- ZAYO-CAN-12
- Registrant
- Zayo Bandwidth
- Organization
- Zayo Bandwidth (ZAYOB)
- Org address
- 1401 Wynkoop St., Denver, CO, 80202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-209-146-128-0-1
- Parent
- NET-209-0-0-0-0
- Created
- Oct 8, 1997
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 8, 1997
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN