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OCN 516C · IP-Enabled Service / VoIP

AT&T Enterprises LLC

d/b/a SBC Internet Services Inc

Part of the AT&T group — 74 OCNs across 54 states · 265,508 blocks combined.

Holding: AT&T Inc

Total blocks
5,935
Recent (18 mo)
113
Medium
278
Old
5,415
Area codes
193
States
21
Address
1010 N Saint Marys St, 13G
San Antonio, TX 78215-2109
Website
AT&T Internet Services
First assigned block
2001-02-14
Last assigned block
2026-02-03
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HQ — San Antonio, TX

Street view of AT&T Enterprises LLC HQ
Street view
Satellite view of AT&T Enterprises LLC HQ
Satellite

Block portfolio at a glance

By age

Recent: 113Medium: 278Old: 5,415Undated: 1295,935blocks
  • Recent (113) — last 18 mo
  • Medium (278)
  • Old (5,415)
  • Undated (129)

Footprint by state

Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.

HawaiiAlaskaFlorida (FL): 331 blocks — 1 recentSouth Carolina (SC): 140 blocksGeorgia (GA): 281 blocksAlabama (AL): 164 blocksNorth Carolina (NC): 177 blocksTennessee (TN): 242 blocksRhode IslandConnecticutMassachusettsMaineNew HampshireVermontNew YorkNew JerseyPennsylvaniaDelawareMarylandWest VirginiaKentucky (KY): 208 blocksOhio (OH): 298 blocksMichigan (MI): 379 blocksWyomingMontanaIdahoWashingtonTexas (TX): 826 blocks — 3 recentCalifornia (CA): 913 blocks — 63 recentArizonaNevada (NV): 50 blocks — 6 recentUtahColoradoNew MexicoOregonNorth DakotaSouth DakotaNebraskaIowaMississippi (MS): 220 blocksIndiana (IN): 204 blocks — 8 recentIllinois (IL): 361 blocks — 25 recentMinnesotaWisconsin (WI): 128 blocksMissouri (MO): 248 blocks — 7 recentArkansas (AR): 137 blocksOklahoma (OK): 222 blocksKansas (KS): 173 blocksLouisiana (LA): 233 blocksVirginiaDistrict of Columbia

Top area codes

Bars show total blocks; red overlay is recent.

66210127094318875308457384 / 458083832828707867874469687076762066

Block assignments by year

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1706 11
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26

Best vanity numbers from AT&T Enterprises LLC's recent issuances

Numbers in blocks issued in the last 18 months whose digits spell a useful word. Filter by state and category to find one for your business. ★ marks Mike's curated standouts.

NumberSpellsCategoryStateBlock issuedScore
(260) 378-4763 ★ EQUIPMENT VAN IN 2025-07-08 75,921
(779) 425-5379 ★ GALLERY Art / Crafts / Greeting Cards IL 2025-07-08 71,702
(979) 368-4527 ★ DOUGLAS Male / Masculine Names TX 2025-07-08 34,135
(820) 465-4329 ★ HOLIDAY Calendar / Holidays / Dates CA 2025-10-08 32,784
(657) 773-8368 ★ PREVENTION Health Care / Medical / Hospitals CA 2025-10-14 10,633
(979) 368-6328 ★ FOUNDATION General TX 2025-07-08 7,952
(260) 378-8346 ★ ESTUDIO Music / Stereo / Sound IN 2025-07-08 7,484
(573) 972-7746 ★ WRAPPING Cleaning / Janitorial MO 2025-09-15 7,183
(562) 252-4369 ★ ALCHEMY Science / Laser / Space CA 2025-10-08 5,931
(979) 368-3777 ★ ENTERPRISE Business / Corporate TX 2025-07-08 5,562
(562) 723-4268 ★ RADIANT Staying Young / Anti-Aging CA 2025-10-14 5,437
(840) 273-2848 ★ CREATIVE Inventions / Creativity CA 2025-10-14 5,350
(979) 368-6379 ★ FOUNDRY Industrial / Manufacturing TX 2025-07-08 4,736
(979) 368-3567 ★ ENVELOPES General TX 2025-07-08 4,553
(840) 273-2843 ★ BREATHE Health Care / Medical / Hospitals CA 2025-10-14 4,103
(779) 425-3743 ★ GALERIE Art / Crafts / Greeting Cards IL 2025-07-08 3,936
(840) 282-2537 ★ BUBBLES Children / Daycare / Baby CA 2025-10-14 3,753
(661) 683-2537 ★ MUEBLES Furniture / Antiques / Upholstery CA 2025-10-14 3,657
(979) 368-7337 ★ ENTREES Restaurants TX 2025-07-08 3,370
(618) 742-5533 ★ PICKLED Supermarkets / Deli / Groceries IL 2025-09-18 3,147
(840) 273-2532 ★ BREAKFAST Supermarkets / Deli CA 2025-10-14 3,070
(562) 723-4225 ★ RADICAL Mental Health / Emotions / Attitude CA 2025-10-14 2,867
(779) 425-5693 ★ HALLOWEEN General IL 2025-07-08 2,647
(779) 425-4329 ★ HALIFAX Geography / Local / Directions IL 2025-07-08 2,513
(657) 773-8439 ★ PREVIEW Sales / Call to Action / Marketing CA 2025-10-14 2,403
(260) 827-6749 ★ VAPORIZERS Marijuana / Smoking / Vaping IN 2025-09-18 2,390
(562) 723-4284 ★ RADIATION Cyber Security CA 2025-10-14 2,385
(618) 742-5377 ★ SHAKERS Kitchen / Appliances / Cabinets IL 2025-09-18 2,376
(840) 273-2833 ★ CREATED Verbs / Actions CA 2025-10-14 2,230
(840) 273-2837 ★ CREATES General CA 2025-10-14 2,189

Want one of these or something similar? Request the number from this carrier and we'll route the request.

Most recent assignments

Last 18 months — these blocks were issued by AT&T Enterprises LLC since 2024-11-12.

Number blockStateRate centerAssigned
(779) 446-XXXX IL De Kalb 2026-02-03
(779) 446-7XXX IL De Kalb 2026-02-03
(725) 313-1XXX NV Indian Spg 2025-10-31
(775) 382-0XXX NV Beatty 2025-10-31
(775) 563-3XXX NV Pahrump 2025-10-31
(775) 837-1XXX NV Lathrowlls 2025-10-31
(840) 277-9XXX CA Claremont 2025-10-23
(424) 548-2XXX CA Malibu 2025-10-14
(562) 475-0XXX CA La Habra 2025-10-14
(562) 671-1XXX CA Downey 2025-10-14
(562) 723-4XXX CA Lakewood 2025-10-14
(626) 562-3XXX CA Azusa 2025-10-14
(626) 860-3XXX CA Covina 2025-10-14
(628) 301-7XXX CA Novato 2025-10-14
(657) 773-8XXX CA Huntitnbch 2025-10-14
(661) 683-2XXX CA Lancaster 2025-10-14
(669) 363-2XXX CA Los Gatos 2025-10-14
(669) 370-1XXX CA Morganhill 2025-10-14
(669) 469-3XXX CA Gilroy 2025-10-14
(820) 219-6XXX CA Conejo 2025-10-14
(820) 242-1XXX CA El Rio 2025-10-14
(840) 223-8XXX CA Calimesa 2025-10-14
(840) 273-2XXX CA Mentone 2025-10-14
(840) 282-2XXX CA Chino 2025-10-14
(909) 710-9XXX CA Etiwanda 2025-10-14

Area codes

NPABlocksRecentLast
662 101 — 2024-08-01
270 94 — 2024-08-19
318 87 — 2024-08-12
530 84 — 2024-10-08
573 84 4 2025-09-15
580 83 — 2024-08-12
832 82 — 2016-09-22
870 78 — 2024-07-18
678 74 — 2015-09-01
469 68 — 2017-02-14
707 67 — 2024-10-08
620 66 — 2024-08-02
918 66 — 2024-08-12
601 64 — 2024-07-16
786 64 — 2017-11-13
209 62 — 2016-09-14
765 62 — 2024-07-19
405 61 — 2024-08-12
470 61 — 2024-01-16
740 60 — 2024-07-12
785 60 — 2024-08-02
615 54 — 2016-09-21
256 53 — 2017-01-25
502 53 — 2024-08-19
559 52 — 2024-10-08
812 52 — 2024-07-19
205 50 — 2016-10-11
231 49 — 2023-08-25
317 49 — 2015-07-31
864 49 — 2016-08-19
937 49 — 2016-08-02
985 49 — 2024-08-12
708 48 — 2016-05-24
210 47 — 2016-10-12
775 47 3 2025-10-31
803 47 — 2016-09-09
906 47 — 2023-08-29
346 45 — 2024-08-13
618 45 5 2025-09-18
661 45 1 2025-10-14
931 44 — 2024-08-14
843 43 — 2017-04-06
619 42 — 2016-09-21
731 42 — 2024-05-08
262 41 — 2016-06-24
614 41 — 2016-09-02
904 41 — 2016-11-22
361 40 — 2023-06-02
512 40 — 2016-08-30
616 40 — 2016-05-09
815 40 — 2015-03-06
254 39 — 2023-06-02
330 39 — 2015-04-14
816 39 — 2023-09-06
828 39 — 2024-08-14
920 39 — 2015-07-13
224 38 — 2016-07-28
337 38 — 2024-05-03
817 38 — 2016-10-13
972 38 — 2016-12-12

States

StateBlocksRecent
CA 913 63
TX 826 3
MI 379 —
IL 361 25
FL 331 1
OH 298 —
GA 281 —
MO 248 7
TN 242 —
LA 233 —
OK 222 —
MS 220 —
KY 208 —
IN 204 8
NC 177 —
KS 173 —
AL 164 —
SC 140 —
AR 137 —
WI 128 —
NV 50 6

Sister OCNs in the AT&T group

Same customer-facing carrier, different state-registered OCN. Combined stats are on the AT&T group page.

OCNCompany name on fileHQ stateTotalRecent
6534 New Cingular Wireless PCS LLC - IL GA 58,704 6,972
6214 New Cingular Wireless PCS LLC - GA GA 40,046 5,569
6010 New Cingular Wireless PCS LLC WA 38,106 3,116
4036 New Cingular Wireless PCS LLC - DC GA 30,944 4,493
9533 Southwestern Bell Telephone Company TX 26,095 —
9740 Pacific Bell Telephone Company TX 18,541 —
9417 Bellsouth Telecommunications Inc dba Southern Bell Telephone & Telegraph GA 15,734 —
8300 Teleport Communications America LLC - FL NY 1,704 62
7136 Teleport Communications America LLC - IL NY 1,636 144
7421 AT&T Local NJ 1,597 61
7140 TC Systems Inc - NY NY 1,427 10
7139 Teleport Communications America LLC - CA NY 1,331 81
7145 Teleport Communications America LLC - CA NY 1,316 45
7138 Teleport Communications America LLC - TX NY 1,305 25
7148 Teleport Communications America LLC - TX NY 1,187 43
8392 Teleport Communications America LLC - GA NY 1,144 208
770E Teleport Communications America LLC - MI NJ 1,005 21
7532 Teleport Communications America LLC - OH NY 916 47
7135 TC Systems Inc NY 908 8
7217 Teleport Communications America LLC - AZ NY 887 280
7146 Teleport Communications America LLC - WA NY 869 23
114F Teleport Communications America LLC - TN NJ 766 210
7529 Teleport Communications America LLC - DC NY 711 14
7142 Teleport Communications America LLC - NJ NY 709 2
8389 Teleport Communications America LLC - NC NY 698 15
7216 Teleport Communications America - WI - LLC NY 647 5
7309 Teleport Communications America LLC - PA NY 645 7
7378 Teleport Communications America LLC - CO NY 626 5
7218 Teleport Communications America LLC - MO NY 560 34
7314 Teleport Communications America LLC - IN NY 540 17
4644 Teleport Communications America LLC - VA NY 525 129
7315 Teleport Communications America LLC - PA NY 498 14
8406 Teleport Communications America LLC - KY NY 485 1
7143 Teleport Communications America LLC - CT NY 436 5
9742 Nevada Bell Telephone Company TX 417 —
7325 Teleport Communications America LLC - MD NY 384 13
7530 Teleport Communications America LLC - UT NY 364 59
7147 Teleport Communications America LLC - CA NY 340 18
8271 Teleport Communications America LLC - AL NY 333 38
7726 Southwestern Bell Telephone Company - TX TX 324 —
8405 Teleport Communications America LLC - MN NY 316 1
7144 Teleport Communications America LLC - NE NY 293 174
802C Teleport Communications America LLC - AR NJ 290 2
7480 Pacific Bell (Competitive) CA 286 —
653C Teleport Communications America - LA - LLC NJ 283 6
530C Teleport Communications America - OK - LLC NJ 280 4
635C Teleport Communications America - SC - LLC NJ 275 15
7531 Teleport Communications America LLC - OR NY 248 —
8995 Teleport Communications America LLC - KS NY 216 5
6123 Teleport Communications America LLC - MO NY 200 7

Sister OCNs under AT&T Inc

OCNCompanyTotalRecent
6534 New Cingular Wireless PCS LLC - IL 58,704 6,972
6214 New Cingular Wireless PCS LLC - GA 40,046 5,569
6010 New Cingular Wireless PCS LLC 38,106 3,116
4036 New Cingular Wireless PCS LLC - DC 30,944 4,493
9533 Southwestern Bell Telephone Company 26,095 0
9740 Pacific Bell Telephone Company 18,541 0
9417 Bellsouth Telecommunications Inc dba Southern Bell Telephone & Telegraph 15,734 0
9419 Bellsouth Telecommunications Inc dba South Central Bell Telephone 13,075 0
9329 Ameritech Illinois 6,645 0
9323 Ameritech Michigan 5,035 0
9321 Ameritech Ohio 4,377 0
9325 Ameritech Indiana 2,941 0