Data as of Nov 3, 2026
166.46.0.0/15
No anonymizer spaceVerizon Business
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 |
|---|---|---|---|---|
| 166.46.112.0/20 since Mar 2011 | AS3372 | Internet provider | Verizon Business | |
| 166.46.160.0/20 since Mar 2011 | AS3372 | Internet provider | Verizon Business | |
| 166.46.176.0/20 since Jun 2010 | AS3372 | Internet provider | Verizon Business | |
| 166.46.192.0/20 since Apr 2011 | AS3372 | Internet provider | Verizon Business | |
| 166.46.224.0/20 since Jun 2010 | AS3372 | Internet provider | Verizon Business | |
| 166.47.8.0/24 | AS701 | Internet provider | Verizon Business | |
| 166.47.144.0/20 since Jun 2010 | AS3372 | Internet provider | Verizon Business | |
| 166.47.160.0/20 since Jun 2010 | AS3372 | Internet provider | Verizon Business | |
| 166.47.240.0/20 since Apr 2011 | AS3372 | Internet provider | Verizon Business |
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 |
|---|---|---|---|---|---|---|
| 166.46.0.0/15 | 131,072 | MCI-NETCS17 | Verizon Business (MCICS) · US | Direct Allocation | Mar 24, 1993 | [email protected] |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
131,072 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 130,048 | >99% | 21 | |
| Residential | 1,024 | 0.78% | 4 |
Network & registry
Announced by
Covering announcement 166.32.0.0/12
- Prefix
- 166.32.0.0/12
- Announced by
- AS3371 Verizon Business
- Type
- Internet provider
- RPKI
- No RPKI
- RIR
- ARIN
IPv4 market
Holder
- Organization
- Not stated by the registry
Origin network
AS3371
US
- Name
- Verizon Business
- Type
- Internet provider
- Registered
- Jan 6, 1994
- Domain
- verizonbusiness.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 166.32.0.0/12
166.32.0.0/12
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Nov 2011 · 15 yr
- Origin networks
- 2
- Last change of origin
- Nov 2011
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
166.32.0.0/12 spans several registrations: 5 records are listed under Registrations.
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 9, 1996
- Status
- assigned