Oakville, MO — rate center
- State
- Missouri
- Active prefixes
- 12
- Carriers
- 8
- Pooled prefixes
- 11
- LATA
- 520
- Metro area
- St. Louis, MO-IL MSA
In NANP numbering, Oakville, Missouri is a rate center — the anchor point for local numbers. It is reached through 314, 557 (multiple area codes serve it).
NANPA records show 12 active prefixes here, held by 8 different carriers. Pooling applies to 11 of them — individual thousands-blocks may belong to different companies.
The rate center belongs to the St. Louis, MO-IL Metropolitan Statistical Area. Routing-wise it sits in LATA 520.
Because 314, 557 all serve this territory, two Oakville numbers can look completely different while being neighbors — check the prefix, not just the area code.
As always with US numbering: a prefix anchored to Oakville tells you where the block was issued. The person calling may have ported the number, moved away, or be spoofing it entirely — verify callers through independently found contact details.
Prefixes anchored to Oakville
| Prefix | Code holder | Pooled |
|---|---|---|
| 314-293 | SOUTHWESTERN BELL | Yes |
| 314-334 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | Yes |
| 314-375 | PAETEC ITEL, LLC | Yes |
| 314-380 | ONVOY, LLC - MO | Yes |
| 314-464 | ONVOY, LLC - MO | Yes |
| 314-470 | ONVOY, LLC - MO | Yes |
| 314-549 | LEVEL 3 COMMUNICATIONS, LLC - MO | Yes |
| 314-636 | LEAP TELECOM, LLC | Yes |
| 314-794 | ONVOY, LLC - MO | Yes |
| 314-846 | SOUTHWESTERN BELL | No |
| 314-988 | FRACTEL, LLC | Yes |
FAQ
What area code is Oakville, MO?
Oakville is served by 2 area codes — 314, 557 — which overlay the same territory.
How many prefixes does Oakville have?
12 active NXX prefixes are anchored to this rate center in NANPA records, held by 8 carriers.
Is a call from a Oakville prefix really from Oakville?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.