Atlantech Online

Value Added Services

Cloud Backup Services DNS SD-WAN DDoS Protection

Operational

General Connectivity Services

Cloud Exchange Services DSL Services Dedicated Ethernet Services Ethernet over Copper Services T1 Services Transport Circuits DDoS Protection

Operational

Voice Services

International Calling National Voice Xima Call Center CloudFax Teams Calling SMS/MMS SNAP atlantech|softphone Hosted PBX Operator Connect Zoom Emergency Calling Teams Direct Routing Teams Direct Routing - GCC-High Teams Attendant Console a|POTS CallCabinet Recording Teams Call Manager

Degraded Performance

Data Center, Colocation and Hosting

Ashburn, VA Data Center Rockville, MD Data Center Silver Spring, MD Data Center Web Hosting and VPS Washington, DC Data Center Philadelphia Data Center

Operational

Ethernet - Arlington, VA

1215/1225/1235 South Clark St / 1400 Crystal Dr 1550 Crystal Dr / 241/251 18th St S. 2001 Richmond Hwy 2011 Crystal Dr 2121 Crystal Dr 2200/2300 Clarendon Blvd 2200 Wilson Blvd 2231 Crystal Dr 2345/1770/2231 Crystal Dr / 2221 South Clark St 241 12th St 2451 Crystal Dr 1750 Crystal Dr 1800/1801/1900/1901 South Bell St 2100 Crystal Dr 2200 Crystal Dr 1421 Richmond Hwy / 1401 S. Clark St 223 23rd St / 2111 Richmond Hwy 1777/1611/1621/1701 N. Kent St 200/201 12th St S. 1919 S. Eads St 800 N. Glebe Rd 950 N. Glebe Rd 2300 Wilson Blvd 1300 17th St N. 901 N. Glebe Rd 1300 Wilson Blvd 1911 Fort Myer Dr 4601 North Fairfax Dr 14295 Park Meadow Dr 671 N. Glebe Rd 1525 Wilson Blvd 2500 Wilson Blvd 4075 Wilson Blvd 3865 Wilson Blvd 2461 S Clark Street

Operational

Ethernet - Bethesda, MD

2 Bethesda Metro Ctr 1/3 Bethesda Metro Ctr 4330 East West Hwy 4340 East West Hwy 4350 East West Hwy 4500 East West Hwy 4550 Montgomery Ave / 7315 Wisconsin Ave East & West 4720/4800 Montgomery Ln / 4719 Hampden Ln 5454 Wisconsin Ave 5515 Security Lane / 11400 Rockville Pike 6701 Democracy Blvd 7101 Wisconsin Ave 7200 Wisconsin Ave 7475/7401 Wisconsin Ave / 4600 East-West Hwy 7500 Old Georgetown Rd 7550 Wisconsin Ave 7600/7700 Wisconsin Ave 7700 Old Georgetown Rd 4747 Bethesda Way 7272 Wisconsin Ave 7373 Wisconsin Ave 6710A / 6710B Rockledge Dr 6720 Rockledge Drive

Operational

Ethernet - Fairfax, VA

1199 N. Fairfax St

Operational

Ethernet - Gaithersburg, MD

438 North Frederick Ave 31 South Summit Ave

Operational

Ethernet - Germantown, MD

12800/12850 Middlebrook Rd 20271 Goldenrod Ln 12410 Milestone Ctr Dr

Operational

Ethernet - Herndon, VA

13241 Woodland Park Rd 8350 Broad St 13221 Woodland Park

Operational

Ethernet - McLean, VA

2000 Corporate Ridge 1765, 1775, 1785 Greensboro Station Place 8280 Greensboro Dr 8255 Greensboro Dr 1420 Spring Hill Rd

Operational

Ethernet - Philadelphia, PA

Philadelphia, PA Data Center

Operational

Ethernet - Rockville, MD

11200 Rockville Pike 11300 Rockville Pike 11921 Rockville Pike 1201 Seven Locks Rd 12601 Twinbrook Pkwy 1401 Rockville Pike 1445 Research Blvd 1451 Rockville Pike 15005/15001 Shady Grove Rd 155 Gibbs St 1801 Rockville Pike 2275/2273/2277 Research Blvd 451 Hungerford Dr 5515 Security Lane / 11400 Rockville Pike 6000 Executive Blvd 6101 Executive Blvd 6110 Executive Blvd 6700 Rockledge Dr 9410 Key West Ave 9420 Key West Ave 9430 Key West Ave 9605/9601/9603 Medical Center Dr 9707 Medical Center Dr 9850 Key West Ave 6116 Executive Blvd 9244 - 15810 Gaither Rd 1 Choke Cherry Rd / 77 Upper Rock Cir 1101 Wooton Pkwy 9600 Blackwell Rd 2099/2101 Gaither Rd 12358 Parklawn Dr 6120 /6130 Executive Blvd 9905 Medical Center Dr 6720 Rockledge Drive

Operational

Ethernet - Silver Spring, MD

1010 Wayne Ave 1100 Wayne Ave 8070 Georgia Ave 8401/8403/8405 Colesville Rd 8455 Colesville Rd 8484 Georgia Ave 8601 Georgia Ave 8757 Georgia Ave 962 Wayne Ave 10750 Columbia Pike 5550 Chevy Chase 1 Inventa Place

Operational

Ethernet - Vienna, VA

8000/8010/8020/1850 Towers Crescent Dr 8065 Leesburg Pike 1951 Kidwell Dr 1953 Gallows Rd 8350 Broad St 8045 Leesburg Pike 8075 Leesburg Pike 8201 Greensboro Dr 8255/8241/8281/8283/8285 Greensboro Dr

Operational

Ethernet - Washington, DC

1101 K St NW 1775 K. St NW 1250 Eye St NW 1300 Connecticut Ave NW 1201 Connecticut Ave NW 1901 L St NW 4301 Connecticut Ave 700/800 K St NW 1400 L St NW 1333 New Hampshire Ave 1900 L St NW 1900 K St NW 1919 Penn Ave NW 1299 Penn Ave NW 1800 M St. NW 1919 M St NW 1101 K St NW 529 14th St NW 1850 M St NW 1055 Thomas Jefferson St NW 1275 Pennsylvania Ave NW 1666 K St NW 1900 N St NW 1825 K St NW 2101 L St NW 2021 K St NW 425 3rd St SW 4301 Connecticut Ave NW 800 8th St NW 1140 Connecticut Ave NW 1025 Connecticut avenue 1999 K Street 1201 New York Ave 1350 I St 1717 K St NW

Operational

Atlantech Internal Systems

Care Helpdesk System

Operational

Ethernet - Columbia, MD

10710 Charter Dr

Operational

Testing (Internal)

Operational

Ethernet- Chantilly, VA

14295/14291 Park Meadow Drive

Operational

Ethernet- Boydton, VA

829 Ridge Rd

Operational

Operator Connect Call Forwarding Intermittent IssuesDegraded Performance

Scheduled Maintenance

Scheduled Maintenance: Thursday, May 21, 2026, 12:01 AM ET – Upstream Carrier MaintenancePlanned Maintenance

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