Boost Mobile phone number blocks and OCNs in the US

Boost Mobile holds 3.7 million phone numbers in the United States, 0.2% of the numbers NANPA’s table of 2026-09-27 lists as allocated there, under 1 operating company number (OCN). The carrier a phone lookup names for a number is the holder of the block the number sits in, as the regulator lists it: the original allocation, not the caller, the app or the network that serves a ported number today.

Brand	Boost Mobile
Numbers held	3,682,000 (0.2% of the allocated numbers in NANPA’s table)
Operating company numbers	1
Codes held	480
Thousands-blocks held	3,600
Table	NANPA numbering reports, file dated 2026-09-27
Terms	no terms of use published (NANPA)
Grouped by	Spaw’s carrier brand map of 2026-09-24
Region	United States

Who Boost Mobile is

Boost SubscriberCo L.L.C. files with the FCC as a cellular carrier doing business as Boost Mobile, with Ting Mobile and Gen Mobile among its trade names.

Sources: FCC Form 499 filer 838352 (Boost SubscriberCo L.L.C.). Checked 2026-09-26.

The legal entities NANPA lists

Every holder in NANPA’s table that the brand map groups under Boost Mobile, by the numbers allocated to it and with its operating company number (OCN), the code the table identifies a carrier by. Names are printed as the regulator writes them. Holdings are counted in numbers, not table rows, because rows differ in size: a central office code (NPA-NXX) is 10,000 numbers and a thousands-block 1,000. A pooled code counts for its code holder only where no thousands-block row of the table covers it, so no number is counted twice.

holder	ocn	codes	thousands-blocks	numbers	read as
BOOST SUBSCRIBERCO L.L.C.	490J	480	3,600	3,682,000	mobile

How a lookup reads these numbers

The North American plan leaves a number’s line type to the holder of its block, so a lookup reads it from the holder: 0.0% of Boost Mobile’s numbers read as VoIP, 100.0% as mobile, and for 0.0% the holder settles neither, so the line type stays fixed_line_or_mobile.

The reading is Spaw’s classification of each holder: the holder’s regulatory filing (in the US its FCC Form 499 filing type) and its own description, matched on the name the regulator’s table gives it. It is a lower bound, not a measurement of the numbers, and it says what a lookup answers, not what Boost Mobile is.

The area codes with most of its numbers

Boost Mobile’s entities hold numbers under 333 area codes. The share is its part of the numbers NANPA lists as allocated under each code.

code	place	numbers	share of the code
346	Texas	73,000	1.0%
929	New York City, NY	71,000	1.0%
872	Chicago, IL	68,000	2.5%
667	Maryland	60,000	1.5%
618	Illinois	44,000	0.6%
945	Texas	37,000	1.3%
943	Georgia	34,000	2.5%
765	Indiana	32,000	0.5%
980	North Carolina	32,000	0.7%
234	Ohio	31,000	0.9%
984	North Carolina	31,000	1.1%
816	Kansas City, MO	30,000	0.4%

Thousands-blocks in pooled codes

In a pooled US code NANPA assigns the code’s ten thousands-blocks one by one, often to carriers other than the code holder, and a lookup names the holder of the number’s own thousands-block where NANPA lists one. Boost Mobile’s entities hold 3,600 thousands-blocks: 689 inside codes its own entities hold, 2,223 inside codes of other brands and 688 inside codes of holders the brand map does not group, which this page counts but does not name.

code holder’s brand	Boost Mobile’s blocks inside
Inteliquent	704
AT&T	371
T-Mobile	287
Verizon	281
Lumen	147
Bandwidth	130

Other holders hold 2,797 thousands-blocks inside Boost Mobile’s codes, 168 of them holders the brand map does not group. The largest: Inteliquent 1,079, AT&T 495, Verizon 462, T-Mobile 234, Bandwidth 110, Commio 79.

Assignments by year

The codes and thousands-blocks the table still lists under Boost Mobile’s entities, by the year NANPA dates their assignment. A block returned since is no longer in the table, so earlier years read low; 99.7% of the rows carry a date. NANPA dates nothing before 2001 and no retained block.

year	codes	thousands-blocks	numbers
2026	15	454	454,000
2025	46	657	665,000
2024	33	809	812,000
2023	162	1,029	1.1 million
2022	114	509	518,000
2021	96	142	154,000
2012	1	0	7,000
2003	1	0	2,000

What this page cannot say

A regulator’s table records the original allocation of each block, never who serves a number today: a number ported away from Boost Mobile keeps its block, and a lookup still names the block’s holder for it.
The carrier a lookup names is not the caller, the app or the subscriber. Caller ID can be spoofed, so the holder of a calling number’s block may not have carried the call at all.
Spaw does no reverse lookup and names no subscriber: nothing here says who owns or uses any number.
Shares are shares of the regulator’s own table, not of subscribers, lines in service or traffic.
In a pooled US code a lookup names the holder of the number’s own thousands-block where NANPA lists one, otherwise the code holder; Canada’s table is code-level.
The grouping under Boost Mobile is Spaw’s carrier brand map of 2026-09-24: legal entities, subsidiaries and former names under the brand the network trades as today. Networks change hands, and the map is reviewed at least yearly.

Boost Mobile and the other brand names on this page are trademarks of their owners, used only to name the networks the regulators’ tables list. Spaw is not affiliated with any of them.

Other carriers in the United States

NANPA numbering reports file dated 2026-09-27 · carrier brand map 2026-09-24 · page changed 2026-09-27

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