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Data as of Nov 4, 2026

121.1.0.0/18

No anonymizer space · no proxy exits in 30 days

Smart Broadband, Inc.

Announcement
this exact prefix
No RPKI
Announced by
AS10139
Type
Mobile
99% of it

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
121.1.16.0/20
since Apr 2025
AS10139MobileSmart Broadband, Inc.
121.1.24.0/21
since Apr 2025
AS10139MobileSmart Broadband, Inc.
121.1.32.0/20
since Aug 2006
AS10139MobileSmart Broadband, Inc.
121.1.48.0/20
since Apr 2025
AS10139MobileSmart Broadband, Inc.
121.1.52.0/22
since Mar 2021
AS10139MobileSmart Broadband, Inc.

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
121.1.0.0/1816,384SMARTBRO-PHSmart Broadband, Inc. (ORG-SBI2-AP) · PHALLOCATED PORTABLE—[email protected]
└ 121.1.11.192/298Viap-Phils-MktViap Phils MakatiASSIGNED NON-PORTABLE—[email protected]
└ 121.1.11.208/2816MTU-EGI-TOWER-TaftMTU EGI Tower TaftASSIGNED NON-PORTABLE—[email protected]
└ 121.1.29.160 - 121.1.29.1689Aboitiz-CagayanAboitiz CagayanASSIGNED NON-PORTABLE—[email protected]
└ 121.1.29.176/2816MTU-Camiguin-Polytechnic-State-CollegeMTU Camguin Polytechnic State CollegeASSIGNED NON-PORTABLE—[email protected]
└ 121.1.32.0/2664SMARTBRO-NETSmart Broadband, Inc.ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.37.64/2816InfobahnInfobahnASSIGNED NON-PORTABLE—[email protected]
└ 121.1.37.80/298HZ-Araneta-ColiseumHZ Araneta ColiseumASSIGNED NON-PORTABLE—[email protected]
└ 121.1.37.96/298Daruma-Tech-PhilsDaruma Tech PhilsASSIGNED NON-PORTABLE—[email protected]
└ 121.1.37.120/298Philex-Mining-PasigPhilex Mining PasigASSIGNED NON-PORTABLE—[email protected]
└ 121.1.37.128/298Red-Ribbon-PasigRed Ribbon PasigASSIGNED NON-PORTABLE—[email protected]
└ 121.1.37.240/2816DAPDAPASSIGNED NON-PORTABLE—[email protected]
└ 121.1.39.160/298One-Commerce-FairviewOne Commerce FairviewASSIGNED NON-PORTABLE—[email protected]
└ 121.1.41.32/298Comfac-Corp-MandaluyongComfac Corp MandaluyongASSIGNED NON-PORTABLE—[email protected]
└ 121.1.41.40/298Ri-Chemical-CorpRi Chemical CorpASSIGNED NON-PORTABLE—[email protected]
└ 121.1.41.48/2816Malayan-InsuranceMalayan InsuranceASSIGNED NON-PORTABLE—[email protected]
└ 121.1.48.240/2816I-Connect-PhilsI Connect PhilsASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.0/304SMARTBRO-PHLas Pinas Cisco ER <> Las Pinas BHASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.4/304SMARTBRO-PHLas Pinas BH E1 Link1 <> Tagaytay BH E1 Link1ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.8/304SMARTBRO-PHLas Pinas BH E1 Link2 <> Tagaytay BH E1 Link2ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.12/304SMARTBRO-PHLas Pinas BH E1 Link3 <> Tagaytay BH E1 Link3ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.16/304SMARTBRO-PHLas Pinas BH E1 Link4 <> Tagaytay BH E1 Link4ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.20/304SMARTBRO-PHLas Pinas BH E1 Link5 <> Tagaytay BH E1 Link5ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.24/304SMARTBRO-PHLas Pinas BH E1 Link6 <> Tagaytay BH E1 Link6ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.28/304SMARTBRO-PHLas Pinas BH E1 Link7 <> Tagaytay BH E1 Link7ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.32/304SMARTBRO-PHLas Pinas BH E1 Link8 <> Tagaytay BH E1 Link8ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.36/304SMARTBRO-PHLas Pinas BH E1 Link9 <> Tagaytay BH E1 Link9ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.40/304SMARTBRO-PHLas Pinas BH E1 Link10 <> Tagaytay BH E1 Link10ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.44/304SMARTBRO-PHLas Pinas BH E1 Link11 <> Tagaytay BH E1 Link11ASSIGNED NON-PORTABLE—[email protected]
└ 121.1.52.48/304SMARTBRO-PHLas Pinas BH E1 Link12 <> Tagaytay BH E1 Link12ASSIGNED NON-PORTABLE—[email protected]

Composition

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

Announced space

Address share

Announced space

Types across the prefix

16,384 addresses
TypeAddressesShareRanges
Mobile16,21599%18
Business1691.0%15

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS10139

PH
Name
Smart Broadband, Inc.
Type
Internet provider
Registered
Nov 21, 2006
Domain
smart.com.ph
Spamhaus ASN-DROP
not listed