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Data as of Nov 12, 2026

63.251.136.0/22

No anonymizer space · no proxy exits in 30 days

FirstLight Fiber, Inc. · space held by PF IPV4 Borrower, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS27382
Type
Internet provider
Risk
0 / 100 · Low
IPv4 market

Path

1 · Holder
PF IPV4 Borrower, LLC
record created Dec 2, 1999 · reallocated to ColoSpace, Inc. Jul 15, 2003
2 · Leased from
IPv4.Global
3 · Announced by
AS27382 FirstLight Fiber, Inc.
since Dec 2016 · 9.9 yr ago
4 · Use
Internet provider

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

63.251.136.0/22

From the registry to its use

  1. Dec 2, 1999
    Registry record
    PF IPV4 Borrower, LLC
    Direct Allocation
    63.251.128.0 - 63.251.200.255
  2. Jul 15, 2003
    Reallocated
    ColoSpace, Inc.
    Reallocated
    63.251.136.0/22
  3. Jul 24, 2004
    Route object
    AS27382 FirstLight Fiber, Inc.
    RADB route object for AS27382 FirstLight Fiber, Inc., maintainer MAINT-AS1828
  4. May 9, 2005– today
    Announced
    AS14742 Unitas Global
    as part of 63.251.128.0/20
    63.251.128.0/20
  5. May 9, 2005– May 15, 2012
    Announced
    AS27382 FirstLight Fiber, Inc.
    Internet provider
  6. Nov 5, 2013
    Route object
    AS33748 DSCI Corporation
    RADB route object for AS33748 DSCI Corporation, maintainer MAINT-AS33748
  7. Dec 25, 2016– today
    Announced
    AS27382 FirstLight Fiber, Inc.
    Internet provider
  8. Jan 3, 2017
    Route object
    AS27382 FirstLight Fiber, Inc.
    ALTDB route object for AS27382 FirstLight Fiber, Inc., maintainer MAINT-TOWARDEX
  9. Jan 23, 2018
    Route object
    AS27382 FirstLight Fiber, Inc.
    ALTDB route object for AS27382 FirstLight Fiber, Inc., maintainer MAINT-TOWARDEX
    63.251.139.0/24
  10. Oct 17, 2018
    Route object
    AS17054 Expedient
    RADB route object for AS17054 Expedient, maintainer MAINT-RR
  11. today
    Leased from
    IPv4.Global
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromHolderRPKI
63.251.128.0/20
since May 2005
AS14742UnknownIP broker IPv4.GlobalPF IPV4 Borrower, 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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
63.251.128.0 - 63.251.200.25518,688UG-210PF IPV4 Borrower, LLC (PIHL-4) · USDirect AllocationDec 2, 1999ipinfo@hilcostreambank.com
└ 63.251.136.0/221,024PNAP-BSN-COLOSP-RM-01ColoSpace, Inc. (COLOSP) · USReallocatedJul 15, 2003ipabuse@firstlight.net

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
May 2005
Current origin since
Dec 2016 · 9.9 yr
Origin networks
1