Tomball, TX — rate center
- State
- Texas
- Active prefixes
- 48
- Carriers
- 16
- Pooled prefixes
- 40
- LATA
- 560
- Metro area
- Houston-Pasadena-The Woodlands, TX MSA
In NANP numbering, Tomball, Texas is a rate center — the anchor point for local numbers. It is reached through 281, 346, 713, 832 (multiple area codes serve it).
NANPA records show 48 active prefixes here, held by 16 different carriers. Pooling applies to 40 of them — individual thousands-blocks may belong to different companies.
The rate center belongs to the Houston-Pasadena-The Woodlands, TX Metropolitan Statistical Area. Routing-wise it sits in LATA 560.
Because 281, 346, 713, 832 all serve this territory, two Tomball 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 Tomball 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 Tomball
| Prefix | Code holder | Pooled |
|---|---|---|
| 713-810 | ONVOY SPECTRUM, LLC | Yes |
FAQ
What area code is Tomball, TX?
Tomball is served by 4 area codes — 281, 346, 713, 832 — which overlay the same territory.
How many prefixes does Tomball have?
48 active NXX prefixes are anchored to this rate center in NANPA records, held by 16 carriers.
Is a call from a Tomball prefix really from Tomball?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.