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464

Area code 464

Illinois, United States

National (464) 555-0123, E.164 +14645550123

How the 125 central office codes (exchanges) of area code 464 were allocated, from the North American Numbering Plan's records: to which carrier, as which line type. A 464 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
IL
Exchanges on record
125
Carriers on record
10
Exchanges of 464 by the line type they were allocated as
  • Mobile 65 (52%)
  • Fixed line 5 (4%)
  • VoIP 41 (33%)
  • No line type on record 14 (11%)
  • 125 exchanges on record

Most exchanges: AT&T 59, Sinch (Inteliquent) 20, Fractel 14.

Check a number

Valid fixed line or mobile number in the United States.

+1
country code
464
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+14645550123
International+1 464-555-0123
National(464) 555-0123
RFC 3966tel:+1-464-555-0123

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

The example is 464-555-0123: 555-0100 to 555-0199 are set aside for fictional use in every area code.

The exchange map

Every exchange of 464, by the line type it was allocated as

One cell per exchange: blocks 464 2xx to 464 9xx; in each block the row is the tens digit, the column the units digit.

464 2xx464 3xx464 4xx464 5xx464 6xx464 7xx464 8xx464 9xx
  • Mobile 65
  • Fixed line 5
  • VoIP 41
  • No line type on record 14
  • Not on record 675

Formats and patterns

E.164+14645550123
International+1 464-555-0123
National(464) 555-0123
RFC 3966 (tel: URI)tel:+1-464-555-0123

Any 464 number, in E.164

^\+1464[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 (65 on record)

^\+14642(?:0[1-46-9]|1[02-8]|2[4-69]|3[0-4689]|4[046-8]|5[124-8]|6[017-9]|7\d|8[125-9]|9[0-2])\d{4}$

Fixed line exchanges (5 on record)

^\+1464(?:2(?:05|3[57])|56[57])\d{4}$

VoIP exchanges (41 on record)

^\+1464(?:2(?:00|19|2[0-378]|4[1-359]|5[039]|6[2-6]|8[034]|93)|3(?:00|33|45)|4(?:00|44)|529|6(?:00|[46]6)|7(?:33|68|77)|8(?:00|88)|9(?:27|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 464, with the exchanges allocated to it (the three digits after the area code).

CarrierExchangesMobileFixed lineVoIPExchanges held
AT&T595720201, 203, 207–210, 212–218, 224–226, 229–234, 236, 238, 246–248, 251–252, 254–257, 260–261, 267–276, 278–279, 281–282, 285–292, 565, 567
Sinch (Inteliquent)200020219–221, 223, 227–228, 241–243, 245, 249–250, 253, 259, 264, 266, 280, 283–284, 293
Fractel140014200, 222, 300, 333, 345, 400, 444, 529, 600, 666, 777, 800, 888, 999
Ton80 Communications5005263, 646, 733, 768, 927
T-Mobile4400202, 239–240, 258
Verizon3300204, 206, 277
Bandwidth.com2002262, 265
Eon Telecom2020235, 237
Emergency Networks1100244
Lumen1010205

Questions developers ask

Where is area code 464?
Area code 464 is in Illinois, in the United States: all 125 of its exchanges on record are there. From abroad it is dialled +1 464, then the seven-digit number.
Is a 464 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 125 exchanges on record in 464, 65 (52%) were allocated as mobile, 5 (4%) as fixed line, 41 (33%) 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 464?
10 carriers hold exchanges in 464 on record; the most: AT&T (59), Sinch (Inteliquent) (20) and Fractel (14). 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 464 phone number?
In E.164 a 464 number matches ^\+1464[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 (464) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.