Data as of Nov 4, 2026
66.45.209.144/29
No anonymizer space · no proxy exits in 30 daysZayo Bandwidth
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 |
|---|---|---|---|---|---|---|
| 66.45.192.0/19 | 8,192 | NWTI | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | May 9, 2002 | abuse@ |
| └ 66.45.209.144/29 | 8 | CETTO | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 66.45.192.0/19
- Prefix
- 66.45.192.0/19
- Announced by
- AS16503 Zayo Bandwidth
- Type
- Internet provider
- RPKI
- RPKI valid
- Netname
- NWTI
- Registrant
- Zayo Bandwidth
- RIR
- ARIN
Origin network
AS16503
US
- Name
- Zayo Bandwidth
- Type
- Internet provider
- Registered
- May 4, 2000
- Domain
- zayo.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 66.45.192.0/19
66.45.192.0/19
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 66.45.192.0/19 | AS16503 | /19 | ARIN | RPKI valid |
IRR
Route objects on 66.45.192.0/19
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS16503 | RADB | Spectrum Networks proxy registration | MAINT-AS11404 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 66.
45. 192. 0/ 19 - Netname
- NWTI
- Registrant
- Zayo Bandwidth
- Organization
- Zayo Bandwidth (ZAYOB)
- Org address
- 1401 Wynkoop St., Denver, CO, 80202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-66-45-192-0-1
- Parent
- NET-66-0-0-0-0
- Created
- May 9, 2002
- RIR
- ARIN
- Country
- US
- Delegated
- May 9, 2002
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN