NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

CARMEL prefixes in area code 463

NANPA records 12 assigned NXX blocks to rate center CARMEL in area code 463, 6.3% of the 189 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 10 holders hold those blocks, the largest being ONVOY, LLC - IN (3), VONAGE AMERICA LLC (1), BANDWIDTH.COM CLEC, LLC - IN (1). The earliest assignment on record here is 2017-09-11 and the most recent 2026-07-21. 12 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 317, 329, 831, 845 – overlay codes cover the same geography, so a rate center is served by all of them.

12 assigned blocks – 6.3% of 463
10 holders of record
12 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
463-216 Vonage VONAGE AMERICA LLC 2018-11-06 yes yes
463-223 Bandwidth BANDWIDTH.COM CLEC, LLC - IN 2019-07-05 yes yes
463-250 Telnyx TELNYX LLC 2021-02-03 yes yes
463-273 Lumen LEVEL 3 COMMUNICATIONS, LLC - IN 2022-03-14 yes yes
463-293 Onvoy ONVOY, LLC - IN 2024-01-05 yes yes
463-316 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2024-09-18 yes yes
463-328 TON80 COMMUNICATIONS, LLC 2021-08-24 yes yes
463-329 T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2025-04-22 yes yes
463-333 Onvoy ONVOY, LLC - IN 2017-09-11 yes yes
463-341 Onvoy ONVOY, LLC - IN 2026-07-21 yes yes
463-345 FRACTEL, LLC 2020-08-25 yes yes
463-388 COMMIO, LLC 2022-09-15 yes yes

The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.

Who holds the blocks

HolderBrandBlocksShare here
ONVOY, LLC - IN Onvoy 3 25%
VONAGE AMERICA LLC Vonage 1 8.3%
BANDWIDTH.COM CLEC, LLC - IN Bandwidth 1 8.3%
TELNYX LLC Telnyx 1 8.3%
LEVEL 3 COMMUNICATIONS, LLC - IN Lumen 1 8.3%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 8.3%
TON80 COMMUNICATIONS, LLC – 1 8.3%
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC T-Mobile 1 8.3%
FRACTEL, LLC – 1 8.3%
COMMIO, LLC – 1 8.3%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to CARMEL in area code 463?

12 blocks: 216, 223, 250, 273, 293, 316, 328, 329, 333, 341, 345, 388. The table above gives the holder of each.

Which carriers have numbers in CARMEL?

ONVOY, LLC - IN (3 blocks), VONAGE AMERICA LLC (1 block), BANDWIDTH.COM CLEC, LLC - IN (1 block), TELNYX LLC (1 block), LEVEL 3 COMMUNICATIONS, LLC - IN (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CARMEL a city?

It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.

Other rate centers in 463

All 189 prefixes in 463