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Home / Carriers / XO MARYLAND, LLC

XO MARYLAND, LLC

Operating Company Number (OCN): 4773

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Is this carrier legit?

Carriers are telecom operating companies that own number blocks (NPA-NXX). A number showing this carrier does not guarantee the caller is that company — scam calls can spoof caller ID.

Ad Unit
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Number blocks (sample)

StateNPANXXRate centerOpen
MD 240 206 WSNG236Z14 Prefix
MD 240 294 LAUREL236 Prefix
MD 240 399 WSNGTNZN10 Prefix
MD 240 404 GAITHERSBG Prefix
MD 240 427 WALDORF Prefix
MD 240 437 ASHTON236 Prefix
MD 240 489 POOLESVL Prefix
MD 240 510 WSNG236Z15 Prefix
MD 240 523 LA PLATA Prefix
MD 240 538 LEONARDTN Prefix
MD 240 560 WSNGTNZN12 Prefix
MD 240 644 WSHNGTNZN2 Prefix
MD 240 645 WSHNGTNZN3 Prefix
MD 240 652 MECHANCSVL Prefix
MD 240 718 LXTNPKGRML Prefix
MD 240 745 DAMASCS236 Prefix
MD 240 764 WSHNGTNZN4 Prefix
MD 240 765 WSHNGTNZN5 Prefix
MD 240 766 WSHNGTNZN6 Prefix
MD 240 778 WSNGTNZN10 Prefix
MD 240 804 TOMPKINSVL Prefix
MD 240 823 BRANDYWINE Prefix
MD 240 833 WSNGTNZN11 Prefix
MD 240 837 HUGHESVL Prefix
MD 240 841 LAUREL238 Prefix
MD 240 842 WSNG238Z14 Prefix
MD 240 843 WSNG238Z13 Prefix
MD 240 844 RIDGE Prefix
MD 240 845 WSNG236Z13 Prefix
MD 240 846 WSNGTNZN16 Prefix
MD 240 986 NANJEMOY Prefix
MD 240 993 INDIANHEAD Prefix
MD 301 500 WSHNGTNZN2 Prefix
MD 443 200 WOODLAWN Prefix
MD 443 222 WORTHINGTN Prefix
MD 443 264 PIKESVILLE Prefix
MD 443 269 TOWSON Prefix
MD 443 276 COLUMBIA Prefix
MD 443 279 TOWSON Prefix
MD 443 281 COCKEYSVL Prefix
MD 443 284 WATERLO238 Prefix
MD 443 288 ELLICOTTCY Prefix
MD 443 308 SEVERN Prefix
MD 443 334 PIKESVILLE Prefix
MD 443 335 BRYNPKLNCM Prefix
MD 443 337 SPARROWSPT Prefix
MD 443 346 SEVERNA PK Prefix
MD 443 363 SEVERN Prefix
MD 443 381 REISTERSTN Prefix
MD 443 400 BRYNPKLNCM Prefix
MD 443 407 DUNDALK Prefix
MD 443 408 SPARROWSPT Prefix
MD 443 430 COLUMBIA Prefix
MD 443 431 RANDALLSTN Prefix
MD 443 433 ANNAPOLIS Prefix
MD 443 458 ANNAPOLIS Prefix
MD 443 460 ESSEX Prefix
MD 443 498 CATONSVL Prefix
MD 443 503 DUNDALK Prefix
MD 443 524 BALTIMORE Prefix
MD 443 548 PIKESVILLE Prefix
MD 443 557 GLENBURNIE Prefix
MD 443 558 ABERDEEN Prefix
MD 443 568 ARBUTUS Prefix
MD 443 576 RANDALLSTN Prefix
MD 443 578 COCKEYSVL Prefix
MD 443 581 CHASE Prefix
MD 443 586 DUNDALK Prefix
MD 443 588 PARKVILLE Prefix
MD 443 592 ELKRIDGE Prefix
MD 443 596 ESSEX Prefix
MD 443 628 GLENBURNIE Prefix
MD 443 637 ARGRGBSNIS Prefix
MD 443 650 REISTERSTN Prefix
MD 443 692 BALTIMORE Prefix
MD 443 701 ARBUTUS Prefix
MD 443 703 BALTIMORE Prefix
MD 443 705 COCKEYSVL Prefix
MD 443 710 CATONSVL Prefix
MD 443 720 ABERDEEN Prefix
MD 443 773 BRYNPKLNCM Prefix
MD 443 779 ABERDEEN Prefix
MD 443 781 ARGRGBSNIS Prefix
MD 443 782 ANNAPOLIS Prefix
MD 443 788 ABERDEEN Prefix
MD 443 793 PARKVILLE Prefix
MD 443 795 SEVERN Prefix
MD 443 796 PIKESVILLE Prefix
MD 443 797 TOWSON Prefix
MD 443 815 ESSEX Prefix
MD 443 816 SEVERNA PK Prefix
MD 443 817 ARGRGBSNIS Prefix
MD 443 836 BALTIMORE Prefix
MD 443 891 GLENBURNIE Prefix
MD 443 893 WOODLAWN Prefix
MD 443 946 PARKVILLE Prefix
MD 443 973 ELLICOTTCY Prefix
MD 667 231 ABERDEEN Prefix
Showing up to 2,000 blocks (cap for performance).

SEO keywords covered

carrier lookup • operating company number • ocn lookup • who owns this number • npa nxx • rate center

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