Data as of Nov 15, 2026

121.54.32.0/22

No anonymizer space · no proxy exits in 30 days

Smart Broadband, Inc.

Announcement
RPKI valid
Announced by
Type
Mobile
99% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
121.54.32.0/20
since Aug 2010
AS10139MobileSmart Broadband, Inc.
121.54.0.0/17
since Nov 2006
AS10139MobileSmart Broadband, Inc.

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
121.54.0.0/1732,768SMARTBRO-PHSmart Broadband, Inc. (ORG-SBI2-AP) · PHALLOCATED PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.54.32.104/298PLDTPhilippine Long Distance Tel Co.ASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph
└ 121.54.32.252/304PLDTPhilippine Long Distance Tel Co.ASSIGNED NON-PORTABLE—allsmarttscipbb@smart.com.ph

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

1,024 addresses
TypeAddressesShareRanges
Mobile1,01299%3
Business121.2%2

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

121.54.32.0/21

Routing history

Pattern
Stable
First seen
Aug 2010
Current origin since
Aug 2010 · 16 yr
Origin networks
1