---
license: cc-by-sa-4.0
language:
- en
size_categories:
- 1M<n<10M
task_categories:
- other
tags:
- knowledge-graph
- telecommunications
- wikidata
- standards
- 3GPP
- IETF
- ITU-T
- IEEE-802
- Bluetooth
- DOCSIS
pretty_name: Telecom Knowledge Base
---

# Telecom Knowledge Base

Knowledge graph for the telecommunications industry — **wikidata entities +
SDO standards catalogs**, in flat tabular form (one row per
subject/statement/qualifier triple).

## At a glance

- **4,679,018 rows**, **301,949 distinct subjects**, 16 columns
- **162 MB** parquet (zstd)
- File ordered to put leading telcos (Vodafone, Deutsche Telekom, Verizon, Orange, BT…), then equipment vendors (Nokia, Ericsson, Huawei, Cisco, Qualcomm…), then headline 3GPP specs (TS 38.211, 23.501, 24.501…), then famous IETF RFCs (RFC 791 IP, RFC 793 TCP, RFC 9000 QUIC…), then telecom patents — at the very top of the file. The rest follows by `source` then numeric Q-ID.

## Schema (16 columns)

| column | meaning |
|---|---|
| `statement_id` | wikidata statement ID; synthetic md5 for non-wikidata sources |
| `source` | `wikidata` / `IETF` / `3GPP` / `ITU-T` / `Bluetooth` / `CableLabs` |
| `subject_id` | wikidata Q-ID or `STD:<SDO>:<id>` |
| `subject_label` | canonical English label |
| `subject_description` | English description |
| `subject_instance_of_ids` | pipe-separated P31 Q-IDs |
| `subject_instance_of_labels` | pipe-separated P31 labels |
| `property_id` | P-ID (`P31`, `P50`, `P577`, `P1476`, …) |
| `property_label` | property label |
| `value_id` | Q-ID or string value |
| `value_label` | value label |
| `value_type` | `wikibase-entityid` / `string` / `time` / `monolingualtext` / `url` |
| `qualifier_property_id` | qualifier P-ID (may be empty) |
| `qualifier_property_label` | qualifier label |
| `qualifier_value_id` | qualifier value |
| `qualifier_value_label` | qualifier value label |

A statement with N qualifiers becomes N rows sharing the same `statement_id`;
a statement with no qualifier is one row with empty qualifier fields.

## Sources

| source | distinct subjects | rows |
|---|---:|---:|
| `wikidata` | 287,535 | ~4.55M |
| `IETF` (RFCs) | 9,757 | 104,284 |
| `3GPP` (TS/TR) | 3,596 | 25,644 |
| `ITU-T` (recommendations) | 738 | 2,952 |
| `Bluetooth` (SIG specs) | 257 | 1,028 |
| `CableLabs` (DOCSIS) | 66 | 264 |

## Wikidata side

All wikidata properties of every kept subject are preserved — **no property
selection**. The pipeline filters out *entities* (e.g. radio-personality humans,
ships, off-topic content stubs) but never drops individual statements from a
kept entity.

Build summary: 75 hand-curated telecom anchor classes → P279 BFS walk → 6,448
classes → P31 entity scan → property-based expansion (P452 / P101 / P106 / P921
/ P136 / P1056) → anchor cascade (P108 / P127 / P137 / P749 / P176 / P361 /
P488 / P169 / P3320 / P710) → concept-anchor patch (MIMO, OFDM, RSRP, IEEE
802.11n/ac/ax, Shannon-Hartley, AWGN, Friis, …) → weak-area patch (pioneers,
ITU-T codecs, country regulators, SDN/NFV, mobile OS) → cleanup filters →
**287,535 wikidata subjects**.

## Standards side

| SDO | Source | Notes |
|---|---|---|
| IETF | `rfc-editor.org/rfc-index.xml` | full metadata: title, authors, year/month, status, abstract, obsoletes/-by, keywords |
| 3GPP | `3gpp.org/ftp/Specs/archive/` + `3gpp.org/dynareport` | 91 % titles + last_modified + per-version date |
| ITU-T | `itu.int/itu-t/recommendations` per series | std_id + series |
| Bluetooth SIG | `bluetooth.com/specifications/specs/` | title + url |
| CableLabs / DOCSIS | `cablelabs.com/specifications` | title + url |

Standards rows use a **13-property wikidata-aligned subset** (P31, P1476 title,
P577 date, P361 part-of, P953 URL, P50 author, P155/P156 follows/-by, P393
edition, P348 version, P407 language, P5008 status, P1683 abstract) — a
deliberate schema alignment to make standards joinable against the wikidata
rows. Native per-SDO catalog parquets with all original fields are preserved
upstream.

Not ingested (JS-rendered SDO catalogs): ETSI, GSMA, IEEE Get Program.

## Subject-ID convention

- `Q…` — wikidata entity
- `STD:IETF:RFC0791`, `STD:3GPP:TS_38.211`, `STD:ITU-T:G.711`,
  `STD:Bluetooth:…`, `STD:CableLabs:…` — standards

Synthetic instance-of classes for SDO docs without wikidata Q-ID counterparts:
`SYN:3GPP-TS`, `SYN:3GPP-TR`, `SYN:BT-SPEC`, `SYN:DOCSIS`.

## Loading

```python
import pyarrow.parquet as pq, pyarrow.compute as pc

# stream
pf = pq.ParquetFile("telecom_kb_v15.parquet")
for batch in pf.iter_batches(batch_size=50_000):
    for row in batch.to_pylist():
        pass

# filter examples
t = pq.read_table("telecom_kb_v15.parquet")
verizon = t.filter(pc.equal(t["subject_id"], "Q467752"))
ietf    = t.filter(pc.equal(t["source"],     "IETF"))
```

Reconstruct a per-entity view by grouping on `subject_id` (+ `statement_id`).

## Caveats

- Wikidata side reflects a 2026-Q1 dump; later additions are absent.
- Standards side is **metadata only** (titles / dates / versions / URLs /
  authors / obsoletes-chains), not full spec text.
- Wikidata coverage of individual standards documents is sparse: 0 3GPP TS
  docs by exact label, ~95 RFCs by exact `RFC NNN` label (plus ~1,700 by
  content-title via Q212971 RFC class), ~572 ITU-T recommendations. The
  standards-side rows are largely net-new vs wikidata.
- Some cascade noise remains (non-telecom patents owned by Samsung / Qualcomm
  etc.) — documented in audits but kept per scope.