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BLOCKROCK
The Mont Blanc massif in the Alps, in black and white

Swiss international carrier · Since 2002

Wholesale voice.
Messaging.
Measured quality.

Voice termination, SMS and bilateral swaps. An independent carrier. A platform built in-house.

  • VoiceA–Z · CLI · NCLI · high volume
  • Swapsbilateral · settled net
  • MessagingSMPP · A2P · P2P
24
years in international voice
since 2002
500+
carriers invoiced
as customers or suppliers
103
countries
where our counterparties are registered
56
bilateral partners
carriers that buy from and sell to us

Network

500+ carriers.
103 countries.

Historical relationships with invoiced customers and suppliers, grouped by their country of registration.

Explore countries and roles

Europe

  • Albania: customers and suppliers
  • Austria: suppliers
  • Belgium: suppliers
  • Bulgaria: suppliers
  • Switzerland: customers and suppliers
  • Cyprus: customers and suppliers
  • Czechia: customers and suppliers
  • Germany: customers and suppliers
  • Spain: customers and suppliers
  • Estonia: suppliers
  • France: customers and suppliers
  • United Kingdom: customers and suppliers
  • Gibraltar: suppliers
  • Croatia: suppliers
  • Hungary: suppliers
  • Ireland: customers and suppliers
  • Italy: customers and suppliers
  • Lithuania: suppliers
  • Latvia: customers and suppliers
  • Monaco: customers and suppliers
  • North Macedonia: suppliers
  • Malta: suppliers
  • Netherlands: suppliers
  • Norway: customers
  • Poland: customers and suppliers
  • Portugal: suppliers
  • Romania: customers and suppliers
  • Russia: suppliers
  • Slovakia: customers and suppliers
  • Sweden: suppliers
  • Kosovo: customers

Africa

  • Benin: suppliers
  • Côte d’Ivoire: suppliers
  • Cameroon: suppliers
  • Democratic Republic of the Congo: suppliers
  • Republic of the Congo: suppliers
  • Algeria: suppliers
  • Egypt: suppliers
  • Ghana: suppliers
  • Kenya: customers and suppliers
  • Liberia: suppliers
  • Libya: suppliers
  • Morocco: suppliers
  • Mauritius: suppliers
  • Nigeria: suppliers
  • Réunion: suppliers
  • Sudan: suppliers
  • Senegal: suppliers
  • Somalia: suppliers
  • Seychelles: customers and suppliers
  • Tunisia: suppliers
  • Tanzania: suppliers
  • Uganda: suppliers
  • South Africa: suppliers
  • Zambia: suppliers

Americas

  • Argentina: suppliers
  • Bahamas: suppliers
  • Belize: customers and suppliers
  • Bermuda: customers
  • Bolivia: suppliers
  • Canada: customers and suppliers
  • Chile: suppliers
  • Colombia: suppliers
  • Dominica: suppliers
  • Panama: customers and suppliers
  • Peru: suppliers
  • El Salvador: suppliers
  • Uruguay: suppliers
  • United States: customers and suppliers
  • British Virgin Islands: suppliers

Middle East

  • United Arab Emirates: customers and suppliers
  • Iran: suppliers
  • Iraq: suppliers
  • Israel: suppliers
  • Jordan: customers and suppliers
  • Kuwait: suppliers
  • Lebanon: suppliers
  • Palestinian Territories: suppliers
  • Qatar: suppliers
  • Türkiye: suppliers
  • Yemen: suppliers

Asia-Pacific

  • Afghanistan: suppliers
  • Armenia: suppliers
  • Australia: suppliers
  • Bangladesh: suppliers
  • Brunei: suppliers
  • China: suppliers
  • Georgia: suppliers
  • Hong Kong: customers and suppliers
  • Indonesia: suppliers
  • India: suppliers
  • Cambodia: suppliers
  • South Korea: suppliers
  • Sri Lanka: suppliers
  • Mongolia: suppliers
  • Malaysia: suppliers
  • New Zealand: suppliers
  • Pakistan: suppliers
  • Philippines: suppliers
  • Singapore: customers and suppliers
  • Thailand: suppliers
  • Tajikistan: suppliers
  • Vietnam: suppliers
GenevaCountry with invoiced carriersSource: the company’s own customer and supplier invoices. Hover a country or open the country list for details.

Routing intelligence

Measured quality. Route by route.

NRSA ranks suppliers by quality and cost, prefix by prefix. Its Total Quality Indicator brings five measurements into one routing decision.

  • Six measurement windows, from the last hour to the last four days — sudden failures and slow drift are both caught.
  • Prefix precision. A mobile range is ranked on its own traffic, not on its country's average.
  • Quality and cost decided together, through NRSA rankings that combine measurements with configured route policies.
Understand the measurements
  • ASRAnswer-seizure ratio
  • NERNetwork effectiveness
  • ACDAverage call duration
  • PDDPost-dial delay
  • RateCost of the destination
TQI
Total Quality
Indicator
Ranking for one prefixIllustration
  1. 1Supplier route A92
  2. 2Supplier route B84
  3. 3Supplier route C71
  4. 4Supplier route D58

Platform

From rate sheet to ledger.

One in-house platform connects routing, rating, invoicing and accounting. Follow the same figures from the rate sheet to the ledger.

  1. 01
    InstantRATE
    Rates in

    Supplier rate sheets read from the mailbox, validated line by line, applied with their effective dates.

  2. 02
    NRSA
    Routing

    Every supplier on every prefix ranked by Total Quality Indicator, re-ranked as live traffic changes.

  3. 03
    Rate sheets
    Rates out

    Customer rate sheets generated and sent automatically, per service and currency, every change dated.

  4. 04
    InstantCARE
    Real-time rating

    Each call costed the moment it ends, at buy and sell rate. Credit followed both ways.

  5. 05
    Billing
    Invoicing & reconciliation

    Invoices checked against an independent count before issue; supplier invoices reconciled.

  6. 06
    Ledger
    Accounting

    Invoices posted, currencies converted at official rates, balances known on any day.

You carry for us
1,200 units
We carry for you
950 units
Illustrative balance
250 units

Fictitious values · Same settlement currency

Agreed values, not a difference in minutes. This example excludes taxes, fees, credit notes, currency conversion and timing. Actual settlement follows the agreement and reconciled invoices.

Bilateral agreements

Two directions. One reconciliation.

56 counterparties buy from us and sell to us. Swap arrangements are agreed separately, with defined minutes, an imbalance ceiling and settlement terms.

Quality and fraud prevention

Measure. Investigate. Reconcile.

Live KPIs

ASR, NER, ACD and PDD, per route and per prefix, read against the same traffic over time — not against a brochure figure.

Fraud controls

Route quality, rate and credit indicators support operational checks and the investigation of suspicious traffic.

Credit per call

Call costs and running totals support credit review in both directions, against limits agreed before traffic starts.

Swiss compliance

Commercial and technical requirements are agreed for each interconnect, with attention to applicable Swiss requirements.

Getting started

Agree. Test. Go live.

  1. 01

    Brief us

    Destinations, volumes, and whether you buy, sell or want to swap.

  2. 02

    Rate sheet and terms

    Per prefix, with billing increments and effective dates, and the interconnect agreement.

  3. 03

    Test window

    Real traffic at low volume, both sides reading the same metrics.

  4. 04

    Go live

    Credit and settlement agreed, routes opened commercially when the numbers hold.

Insights

Shared trust, across networks.

Where might blockchain and decentralisation help telecommunications? A carrier perspective on shared records, network signals and connectivity.

Next step

Open an interconnect.

Tell us the destinations, the volumes and whether you buy, sell or want to swap. We will discuss rates and interconnect terms with you.