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Data as of Nov 3, 2026

72.5.171.0/24

No anonymizer space · no proxy exits in 30 days

SymbioSystems LLC · space held by PF IPV4 Borrower, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS25985
Type
Business
Risk
0 / 100 · Low
IPv4 market

Path

1 · Holder
PF IPV4 Borrower, LLC
record created Sep 30, 2004
2 · Leased from
IPv4.Global
3 · Announced by
AS25985 SymbioSystems LLC
since Dec 2016 · 9.9 yr ago
4 · Use
Business

Lineage

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

72.5.171.0/24

From the registry to its use

  1. Sep 30, 2004
    Registry record
    PF IPV4 Borrower, LLC
    Direct Allocation
    72.5.164.0 - 72.5.171.255
  2. Dec 13, 2016– today
    Announced
    AS25985 SymbioSystems LLC
    Business
  3. Dec 17, 2016
    Route object
    AS25985 SymbioSystems LLC
    RADB route object for AS25985 SymbioSystems LLC, maintainer MAINT-AS1828
  4. Aug 25, 2017
    Assigned
    SymbioSystems LLC
    Reassigned
    72.5.171.0/24
  5. Aug 15, 2023– today
    Announced
    AS14743 Unitas Global
    as part of 72.5.168.0/22
    72.5.168.0/22
  6. today
    Leased from
    IPv4.Global
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromHolderRPKI
72.5.168.0/22
since Aug 2023
AS14743UnknownIP 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
72.5.164.0 - 72.5.171.2552,048PIHL-4PF IPV4 Borrower, LLC (PIHL-4) · USDirect AllocationSep 30, 2004[email protected]
└ 72.5.171.0/24256INAP-SFO-SYMBIOSYSTEMS-72-5-171-0SymbioSystems LLC (C06677715) · USReassignedAug 25, 2017[email protected]
via PIHL-4

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

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
PF IPV4 Borrower, LLC
Handle
PIHL-4
Range
72.5.164.0 - 72.5.171.255
Registration type
Direct Allocation
Record created
Sep 30, 2004
Origin network

AS25985

US
Name
SymbioSystems LLC
Type
Business
Registered
Feb 1, 2013
Domain
symbiosystems.com
Industry
Service
Spamhaus ASN-DROP
not listed