Data as of Nov 7, 2026
8.28.54.0/23
No anonymizer space · no proxy exits in 30 daysCrown Castle Fiber LLC · space held by Level 3 Parent, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 8.28.48.0/21 since Dec 2018 | AS46887 | Unknown | 1 | Level 3 Parent, LLC via Fibertech Networks, LLC | |
| 8.16.0.0/12 | AS3356 | Internet provider | 1,952 266 always on | Level 3 Parent, LLC | |
| 8.0.0.0/9 | AS3356 | Internet provider | 5,721 961 always on |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 8.28.54.0/24 since Oct 2018 | AS46887 | Business | Level 3 Parent, LLC via Fibertech Networks, LLC |
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 |
|---|---|---|---|---|---|---|
| 8. | 7,862,016 | LVLT-ORG-8-8 | Level 3 Parent, LLC (LPL-141) · US | Direct Allocation | Dec 1, 1992 | abuse@ |
| └ 8.28.48.0/21 | 2,048 | LVLT-FNL-4-8-28-48 | Fibertech Networks, LLC (FNL-4) · US | Reallocated | Oct 24, 2013 | abuse@ |
| └ 8.28.54.0/24 | 256 | M-AND-T-BANK | M and T Bank (C05013455) · US | Reassigned | Apr 29, 2014 | abuse@ via LVLT-FNL-4-8-28-48 |
| └ 8.28.55.0/24 | 256 | 172-RIVER-ST-ASSOC-LLC | unknown | — | — | — |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- Level 3 Parent, LLC
- Handle
- LPL-141
- Range
- 8.
8. 9. 0 - 8. 127. 255. 255 - Registration type
- Direct Allocation
- Record created
- Dec 1, 1992
- Legacy
- yes
- Reallocated to
- Fibertech Networks, LLC (FNL-4)
- Reallocated range
- 8.
28. 48. 0/ 21 - Reallocated
- Oct 24, 2013
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 2021
- Current origin since
- Nov 2021 · 5.0 yr
- Origin networks
- 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
- 8.
28. 48. 0/ 21 - Netname
- LVLT-FNL-4-8-28-48
- Registrant
- Fibertech Networks, LLC
- Organization
- Fibertech Networks, LLC (FNL-4)
- Org address
- 1805 29th Street, Suite 2050, Boulder, CO, 80301
- Org country
- US
- Type
- Reallocated
- Handle
- NET-8-28-48-0-1
- Parent
- NET-8-8-9-0-3
- Created
- Oct 24, 2013
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 1, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN