Blitz Fon is the carrier for calls that get answered.

We operate our own German number ranges, registered with the Bundesnetzagentur. No resellers, no borrowed reputation — clean caller ID, Microsoft Teams calling, a cloud PBX, and AI call analytics, on infrastructure we run ourselves.

Start hearing the differenceSee where we already cover
Registered with the Bundesnetzagentur — registration details on request.
app.blitzfon.com/numbers
Caller IDRegionHealthAnswer
+49 89 2154 77xxMünchen9261% ↑
+49 30 5679 12xxBerlin8758% ↑
+1 415 555 01xxSan Francisco9544% ↑
+49 221 6503 4xxxLive
Caller-ID health 92 · Köln · 14 calls active
AI transcript synced
#vertragsverlängerung → CRM
Own number ranges
Held and operated by us — never resold
195 countries
A–Z termination via vetted carrier partners
Microsoft Teams
Direct Routing compatible, nothing to relearn
Data stays in Germany
GDPR-compliant by default, not by add-on

Recognized. Registered. Compliant.

The credentials behind every claim on this site. Documentation on request — we send the paperwork, not a brochure.

  • Telecommunications network operator registered with the Bundesnetzagentur
  • GDPR-compliant processing, Art. 28 processor agreement on request
  • Data residency: switching, media and call records stay in Germany
  • Microsoft Teams Direct Routing onto our own SIP network
  • 99.99% uptime SLA on our own core network
  • Own number ranges across 12 own-network markets
One network behind every call.
190+
German area codes, own ranges
195
Countries & territories, A–Z
99.99%
Uptime SLA, contractually backed

The network, in numbers.

Every figure here is stated elsewhere on this site and documented on request.

Local in Germany. Reachable everywhere.

Blitz Fon runs two networks: registered German network operations with our own number ranges, and an international A‑Z carrier for everywhere else you dial.

blitzfon.de — German network operations

Our own numbers. Not a reseller's.

We hold and operate German number blocks directly — no intermediate carrier, no shared reputation, no flagged caller ID to explain. When your team dials, the call arrives as local. Because it is.

  • Ortsnetzrufnummern in 190+ area codes
  • Bundesnetzagentur-registered operator
  • Porting with zero downtime
  • Data residency in Germany
Check German coverage
blitzfon.com — international carrier

A–Z termination. One relationship.

Origination and termination in 195 countries and territories through vetted carrier partners. One contract, one invoice, one API — local numbers in 150+ countries included.

  • A–Z termination in 195 countries and territories
  • Local numbers in 150+ countries, ported free
  • HD voice with carrier-grade SLAs
  • Built for outbound-first teams
See global coverage

Every call, measured.

Live number health, AI transcription, and floor analytics — the state of your call center as data, not anecdote.

app.blitzfon.com/analytics
Caller IDRegionHealthAnswer rate
+49 89 2154 77xxMünchen9261% ↑
+49 30 5679 12xxBerlin8758% ↑
+1 415 555 01xxSan Francisco9544% ↑
+44 20 3890 4xxxLondon7839%
1,204
Calls transcribed today
▲ 11% vs yesterday
6.2min
Average talk time
+18%
Pickup rate vs last month

Know what was said. Automatically.

Every conversation transcribed, scored, and tagged in the language it was spoken. Compliance flags and coaching moments surface on their own.

MS
Maren S. — Team Sales
+49 89 · Inbound · 04:12 · heute 14:32
Positive
Agent„Guten Tag, Sie sprechen mit Maren aus der Abteilung Vertragsverlängerung — ich sehe, Sie hatten letzte Woche schon Kontakt mit uns.“Kunde„Ja, genau, es geht um die Preisanpassung. Können Sie mir die Konditionen noch einmal erklären?“Agent„Natürlich. Ich lege Ihnen das Angebot direkt per E-Mail und wir vereinbaren einen Follow-up-Termin für Donnerstag.“
#vertragsverlängerung#preisanpassung#follow-up#crm:synced
Abstract artwork of a sound waveform dissolving into structured data

See it before it becomes a problem

Agent status, queue depth, call state — the walk-the-floor check, live, from wherever you are.

Configure it yourself, this afternoon

IVR, queues, routing, voicemail — on a canvas you control, not a ticket you wait on.

A team lead reviewing a live call analytics dashboard

Built for the person running the floor.

See which calls need attention today — and which ones went fine without you. Agent status, queue depth, and call state, refreshed in real time.

Set thresholds once. Get flagged when something needs a human.

Infrastructure you can point to.

Blitz Fon's core network runs on redundant, carrier-grade hardware in German data centers. Staffed in-house, monitored around the clock, registered with the regulator.

99.99%
Uptime SLA, contractually backed
2×
Geo-redundant German core sites
24/7
Network operations, staffed in-house

Microsoft Teams native. Direct Routing, numbers, and PBX run behind the client your team already uses. Nothing to relearn.

Blitz Fon carrier infrastructure in a German data center

Real German infrastructure — not a reseller's reseller.

The difference between a number that works today, and one that still works during a regional outage next year.

Blitz Fon brand artwork — topographic bolt

Hear the difference on your own floor.

Bring one campaign or one team. We put them on clean German numbers with full analytics. You judge the next two weeks by the numbers.

Book a working demoCheck number availability