121.54.52.0/22
Nobody announces 121.54.52.0/22 on its own; it is covered by 121.54.0.0/17 AS10139 SMARTBRO-PH-AP. Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 121.54.52.0/22
Prefix
Origin
not announced
Size
1,024 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 7 covering
RPKI
Route origin authorizations
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 121.54.0.0/17 | /24 | AS10139 SMARTBRO-PH-AP | APNIC |
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 121.54.52.0/22 | AS10139 SMARTBRO-PH-AP | APNIC | Smart Broadband, Inc. SMART LEC Bldg., UPS5 Subd., Filipinas Ave., Sucat Road, | MAINT-PH-SMARTBRO |
| 121.54.52.0/22 | AS10139 SMARTBRO-PH-AP | NTTCOM | Smart | MAINT-PLDT |
| 121.54.48.0/21 covering | AS10139 SMARTBRO-PH-AP | APNIC | Smart Broadband, Inc. SMART LEC Bldg., UPS5 Subd., Filipinas Ave., Sucat Road, | MAINT-PH-SMARTBRO |
| 121.54.48.0/21 covering | AS10139 SMARTBRO-PH-AP | NTTCOM | SmartBro IP Block | MAINT-PLDT |
| 121.54.48.0/20 covering | AS10139 SMARTBRO-PH-AP | APNIC | Smart Broadband, Inc. SMART LEC Bldg., UPS5 Subd., Filipinas Ave., Sucat Road, | MAINT-PH-SMARTBRO |
| 121.54.48.0/20 covering | AS10139 SMARTBRO-PH-AP | NTTCOM | Smart | MAINT-PLDT |
| 121.54.32.0/19 covering | AS10139 SMARTBRO-PH-AP | APNIC | Smart Broadband, Inc. SMART LEC Bldg., UPS5 Subd., Filipinas Ave., Sucat Road, | MAINT-PH-SMARTBRO |
| 121.54.0.0/18 covering | AS10139 SMARTBRO-PH-AP | APNIC | Smart Broadband, Inc. SMART LEC Bldg., UPS5 Subd., Filipinas Ave., Sucat Road, | MAINT-PH-SMARTBRO |
| 121.54.0.0/17 covering | AS10139 SMARTBRO-PH-AP | NTTCOM | Weroam Meridian | MAINT-PLDT |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.