Data as of Nov 13, 2026
208.83.121.0/24
1 residential-proxy exit · 30 daysCrown Castle Fiber LLC · space held by Zayo Bandwidth
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Oct 14, 2026 – Nov 12, 2026
Exits seen per day
1 observation
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 208.83.120.0/21 since Oct 2025 | AS46887 | Internet provider | 10 | 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 |
|---|---|---|---|---|---|---|
| 208.83.120.0/21 | 2,048 | ZAYO-CCF-208-83-120-0 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Oct 8, 2007 | abuse@ |
| └ 208.83.121.0/29 | 8 | BUFFALO-MEDICAL | unknown | — | — | — |
| └ 208.83.121.8/29 | 8 | BUFFALO-MEDICAL | unknown | — | — | — |
| └ 208.83.121.16/29 | 8 | FT1-FRONTIER-SCIENCE | unknown | — | — | — |
| └ 208.83.121.32/30 | 4 | NET-208-83-121-32-30 | unknown | — | — | — |
| └ 208.83.121.40/29 | 8 | GOLDBERG-SEGALLA | unknown | — | — | — |
| └ 208.83.121.48/29 | 8 | FT3-SHATTER-I-T | unknown | — | — | — |
| └ 208.83.121.56/29 | 8 | GOLDBERG-SEGALLA | unknown | — | — | — |
| └ 208.83.121.64/28 | 16 | FT1-CATHOLIC-HEALTH | unknown | — | — | — |
| └ 208.83.121.80/28 | 16 | FT2-CATHOLIC-HEALTH | unknown | — | — | — |
| └ 208.83.121.96/27 | 32 | BLUE-WIRELESS | unknown | — | — | — |
| └ 208.83.121.128/26 | 64 | ECOLO-HOSTING-LLC | unknown | — | — | — |
| └ 208.83.121.192/27 | 32 | CATHOLIC-HEALTH | unknown | — | — | — |
| └ 208.83.121.224/27 | 32 | BUFFALO-MEDICAL | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 240 | 94% | 12 | |
| Internet provider | 16 | 6.3% | 1 |
Network & registry
Origin network
AS46887
US
- Name
- Crown Castle Fiber LLC
- Type
- Internet provider
- Registered
- Apr 13, 2009
- Domain
- zayo.com
- Website
- www.crowncastle.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Nov 2007
- Current origin since
- May 2019 · 7.5 yr
- Origin networks
- 2
- Last change of origin
- May 2019
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS46887 | RADB | MAINT-AS27506 | Sep 3, 2025 |
Whois
Registration for this announcement
- Range
- 208.
83. 120. 0/ 21 - Netname
- ZAYO-CCF-208-83-120-0
- Registrant
- Zayo Bandwidth
- Organization
- Zayo Bandwidth (ZAYOB)
- Org address
- 1401 Wynkoop St., Denver, CO, 80202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-208-83-120-0-1
- Parent
- NET-208-0-0-0-0
- Created
- Oct 8, 2007
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 8, 2007
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN