Skip to content

448

Area code 448

Florida, United States

National (448) 555-0123, E.164 +14485550123

How the 132 central office codes (exchanges) of area code 448 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 448 number is mobile, fixed line or VoIP according to its exchange, the three digits after the area code; the allocation is the original one (below).

At a glance

Country code
+1
State
FL
Exchanges on record
132
Carriers on record
28
Exchanges of 448 by the line type they were allocated as
  • Mobile 34 (26%)
  • Fixed line 23 (17%)
  • VoIP 61 (46%)
  • No line type on record 14 (11%)
  • 132 exchanges on record

Most exchanges: Onvoy 28, Emergency Networks 17, T-Mobile 10.

Check a number

Valid fixed line or mobile number in the United States.

+1
country code
448
area code
5550123
subscriber number
CountryUnited States numbering plan
Line typeFixed line or mobile
Carrier the block was allocated toNo carrier on record for this prefix
E.164+14485550123
International+1 448-555-0123
National(448) 555-0123
RFC 3966tel:+1-448-555-0123

Source: North American Numbering Plan Administrator (NANPA); Canadian Numbering Administrator (CNAC); National numbering plan: United States (ITU)

The example is 448-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.

The exchange map

Every exchange of 448, by the line type it was allocated as

One cell per exchange: blocks 448 2xx to 448 9xx; in each block the row is the tens digit, the column the units digit.

448 2xx448 3xx448 4xx448 5xx448 6xx448 7xx448 8xx448 9xx
  • Mobile 34
  • Fixed line 23
  • VoIP 61
  • No line type on record 14
  • Not on record 668

Formats and patterns

E.164+14485550123
International+1 448-555-0123
National(448) 555-0123
RFC 3966 (tel: URI)tel:+1-448-555-0123

Any 448 number, in E.164

^\+1448[2-9]\d{6}$

+1, the area code, a central office code that does not start with 0 or 1, then four digits.

Mobile exchanges (34 on record)

^\+1448(?:2(?:0[17]|1[35]|2[5689]|3[589]|4[139]|5[05])|305|4(?:07|4[0-35-7]|5[16])|567|799|888|9(?:68|9[4-6]))\d{4}$

Fixed line exchanges (23 on record)

^\+1448(?:2(?:0[4-69]|1[046-9]|2[034]|4[08]|5[2-48])|4(?:38|65)|758|988)\d{4}$

VoIP exchanges (61 on record)

^\+1448(?:2(?:0[0238]|12|2[127]|3[0-467]|4[24-7]|5[1679]|60|88)|3(?:00|27|3[348])|4(?:[08][08]|1[38]|28|32|4[489]|50)|5(?:00|87)|6(?:00|52|66|78)|777|8(?:[058]0|44|[67]7|9[05])|9(?:00|53|99))\d{4}$

The exchange patterns follow the original allocations; a number ported since keeps its digits but not necessarily its carrier or its line type.

Carriers and their exchanges

Every carrier holding exchanges in 448, with the exchanges allocated to it (the three digits after the area code).

CarrierExchangesMobileFixed lineVoIPExchanges held
Onvoy280028200, 222, 230–231, 236, 242, 244, 251, 256, 260, 327, 333–334, 408, 413, 418, 428, 432, 444, 448, 450, 587, 600, 652, 678, 850, 900, 953
Emergency Networks171700305, 407, 440–443, 445–447, 451, 456, 567, 799, 968, 994–996
T-Mobile101000201, 207, 213, 226, 235, 238, 243, 249–250, 255
Skyetel7007288, 300, 400, 488, 800, 844, 877
Nuso6060217–220, 223–224
Verizon5320210, 215–216, 239, 241
Fractel4004500, 666, 777, 999
AT&T3120206, 209, 229
Bandwidth.com3003212, 245, 259
Callworks Corporation3003232–234
Comcast3003208, 227, 257
HD Carrier3003221, 338, 449
Wavenation3030252–254
8x82002880, 890
Brightlink Communications2002246–247
COMMIO LLC2002480, 867
Dish Wireless2200225, 228
Leap Telecom2020240, 248
Opentact2020438, 758
Paetec Itel2020204–205
TELNYX2002202–203
Ahoi1010465
Livewire Telecom1010988
Peerless Network1001237
Spectrum1010214
Terra Nova Telecom1100888
Tpx Communications1010258
Twilio International1001895

Questions developers ask

Where is area code 448?
Area code 448 is in Florida, in the United States: all 132 of its exchanges on record are there. From abroad it is dialled +1 448, then the seven-digit number.
Is a 448 number mobile or landline?
Either: in the North American Numbering Plan the line type belongs to the exchange (the three digits after the area code), not to the area code. Of the 132 exchanges on record in 448, 34 (26%) were allocated as mobile, 23 (17%) as fixed line, 61 (46%) as VoIP and 14 (11%) have no line type on record. A number can have been ported since, to another carrier and even to another line type.
Which carriers have numbers in area code 448?
28 carriers hold exchanges in 448 on record; the most: Onvoy (28), Emergency Networks (17) and T-Mobile (10). These are the original allocations: with number portability, a number may be served by another carrier today, which only a live carrier lookup (an HLR or MNP query) can tell.
How do I validate a 448 phone number?
In E.164 a 448 number matches ^\+1448[2-9]\d{6}$: +1, the area code, a central office code that does not start with 0 or 1, then four digits. Written nationally it reads (448) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.