FCC Registration Number
FRN 0004339905
CORES registration
- CORES status
- discovered
Public regulatory phone numbers
| Number | Contact | Source | Confidence |
|---|
| (415) 901-3816 | Melissa Waksman XO Communications service_agent | FORM499 | 95.0% |
| (888) 575-6398 | XO Pennsylvania, Inc. customer_inquiries | FORM499 | 100.0% |
| (888) 575-6398 | XO Delaware, Inc. customer_inquiries | FORM499 | 100.0% |
FCC Form 499 filers
| Current as of | Filer ID | Legal name |
|---|
| 2002-04-01 | 811836 | XO Pennsylvania, Inc. |
| 2002-04-01 | 818660 | XO Delaware, Inc. |
Source provenance
| System | Record | Recorded name | Raw FRN | Observed |
|---|
| FORM499 | 818660:456799 | XO Delaware, Inc. | 0004339905 | 2026-08-06 23:48:31 |
| FORM499 | 818660:456798 | XO Delaware, Inc. | 0004339905 | 2026-08-06 23:48:31 |
| FORM499 | 818660:456797 | XO Delaware, Inc. | 0004339905 | 2026-08-06 23:48:31 |
| FORM499 | 818660:456800 | XO Delaware, Inc. | 0004339905 | 2026-08-06 23:48:31 |
| FORM499 | 811836:453566 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-06 16:18:31 |
| FORM499 | 811836:453567 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-06 16:18:31 |
| FORM499 | 811836:453565 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-06 16:18:31 |
| FORM499 | 811836:453564 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-06 16:18:31 |
| FORM499 | 818660:401152 | XO Delaware, Inc. | 0004339905 | 2026-08-05 17:18:25 |
| FORM499 | 818660:401151 | XO Delaware, Inc. | 0004339905 | 2026-08-05 17:18:25 |
| FORM499 | 818660:401150 | XO Delaware, Inc. | 0004339905 | 2026-08-05 17:18:25 |
| FORM499 | 818660:401153 | XO Delaware, Inc. | 0004339905 | 2026-08-05 17:18:25 |
| FORM499 | 811836:397919 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-05 12:18:25 |
| FORM499 | 811836:397917 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-05 12:18:25 |
| FORM499 | 811836:397918 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-05 12:18:25 |
| FORM499 | 811836:397920 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-05 12:18:25 |
| FORM499 | 818660:345506 | XO Delaware, Inc. | 0004339905 | 2026-08-04 23:48:23 |
| FORM499 | 818660:345503 | XO Delaware, Inc. | 0004339905 | 2026-08-04 23:48:23 |
| FORM499 | 818660:345504 | XO Delaware, Inc. | 0004339905 | 2026-08-04 23:48:23 |
| FORM499 | 818660:345505 | XO Delaware, Inc. | 0004339905 | 2026-08-04 23:48:23 |
| FORM499 | 811836:342273 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-04 17:18:22 |
| FORM499 | 811836:342270 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-04 17:18:22 |
| FORM499 | 811836:342272 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-04 17:18:22 |
| FORM499 | 811836:342271 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-04 17:18:22 |
| FORM499 | 818660:289859 | XO Delaware, Inc. | 0004339905 | 2026-08-04 01:18:18 |
| FORM499 | 818660:289858 | XO Delaware, Inc. | 0004339905 | 2026-08-04 01:18:18 |
| FORM499 | 818660:289857 | XO Delaware, Inc. | 0004339905 | 2026-08-04 01:18:18 |
| FORM499 | 818660:289856 | XO Delaware, Inc. | 0004339905 | 2026-08-04 01:18:18 |
| FORM499 | 811836:286626 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-03 18:48:17 |
| FORM499 | 811836:286623 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-03 18:48:17 |
| FORM499 | 811836:286625 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-03 18:48:17 |
| FORM499 | 811836:286624 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-03 18:48:17 |
| FORM499 | 818660:178564 | XO Delaware, Inc. | 0004339905 | 2026-08-01 22:18:11 |
| FORM499 | 818660:178562 | XO Delaware, Inc. | 0004339905 | 2026-08-01 22:18:11 |
| FORM499 | 818660:178565 | XO Delaware, Inc. | 0004339905 | 2026-08-01 22:18:11 |
| FORM499 | 818660:178563 | XO Delaware, Inc. | 0004339905 | 2026-08-01 22:18:11 |
| FORM499 | 811836:175329 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-01 16:18:10 |
| FORM499 | 811836:175330 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-01 16:18:10 |
| FORM499 | 811836:175331 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-01 16:18:10 |
| FORM499 | 811836:175332 | XO Pennsylvania, Inc. | 0004339905 | 2026-08-01 16:18:10 |
| FORM499 | 818660 | XO Delaware, Inc. | 0004339905 | 2026-07-31 23:48:06 |
| FORM499 | 811836 | XO Pennsylvania, Inc. | 0004339905 | 2026-07-31 20:48:04 |
| FORM499 | 4776 | XO Pennsylvania, Inc. | 0004339905 | 2026-07-31 20:48:03 |
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