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

NEWPALSTIN prefixes in area code 317

NANPA records 4 assigned NXX blocks to rate center NEWPALSTIN in area code 317, 0.5% of the 786 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. 3 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - IN (2), INDIANA BELL TEL CO INC (1), ONVOY, LLC - IN (1). The earliest assignment on record here is 2007-05-17 and the most recent 2014-12-18. 4 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 code 463 – overlay codes cover the same geography, so a rate center is served by all of them.

4 assigned blocks – 0.5% of 317
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
317-620 Lumen LEVEL 3 COMMUNICATIONS, LLC - IN 2007-05-17 yes yes
317-623 Lumen LEVEL 3 COMMUNICATIONS, LLC - IN – yes yes
317-861 AT&T INDIANA BELL TEL CO INC – yes yes
317-953 Onvoy ONVOY, LLC - IN 2014-12-18 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
LEVEL 3 COMMUNICATIONS, LLC - IN Lumen 2 50%
INDIANA BELL TEL CO INC AT&T 1 25%
ONVOY, LLC - IN Onvoy 1 25%

Frequently asked

Which prefixes belong to NEWPALSTIN in area code 317?

4 blocks: 620, 623, 861, 953. The table above gives the holder of each.

Which carriers have numbers in NEWPALSTIN?

LEVEL 3 COMMUNICATIONS, LLC - IN (2 blocks), INDIANA BELL TEL CO INC (1 block), ONVOY, LLC - IN (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is NEWPALSTIN 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 317

All 786 prefixes in 317