Blue Cross and Blue Shield of Illinois
This licensee’s slice of the Blue Cross Blue Shield file set: the files its published index references that are loaded, with sizes and rate records.
September 2026 publicationIllinoisPage 2 of 9
MRF data source
1 endpointLinks from the July 2026 source catalog; the selected snapshot may use different source files.
Files loaded
1,714
of 1,714 files this licensee's index references
Compressed size
151 GB
loaded files, as published
Unzipped size
1.04 TB
loaded files, expanded
Rate records
17.9M
entries in published source files
File inventory
Files 201–400 of the 1,714 loaded files this licensee’s index references, by compressed size.
| File | Zipped | Unzipped | Records |
|---|---|---|---|
| 2026-09_302_42F0_in-network-rates_1_of_2.json.gz | 54 MB | 549 MB | 1.1M |
| 2026-09_302_42B0_in-network-rates_1_of_2.json.gz | 54 MB | 548 MB | 1.1M |
| 2026-09_290_37B0_in-network-rates.json.gz | 51 MB | 357 MB | 11.9K |
| 2026-09_290_37D0_in-network-rates.json.gz | 50 MB | 354 MB | 11.9K |
| 2026-09_890_58B0_in-network-rates_0004_of_30.json.gz | 48 MB | 2 GB | 8.3K |
| 2026-09_890_58D0_in-network-rates_0004_of_30.json.gz | 48 MB | 2 GB | 8.3K |
| 2026-09_890_58B0_in-network-rates_0005_of_30.json.gz | 47 MB | 2 GB | 7.3K |
| 2026-09_890_58D0_in-network-rates_0005_of_30.json.gz | 47 MB | 2 GB | 7.3K |
| 2026-09_890_58A0_in-network-rates_0004_of_31.json.gz | 46 MB | 2 GB | 6.7K |
| 2026-09_890_58A0_in-network-rates_0005_of_31.json.gz | 46 MB | 2 GB | 7.0K |
| 2026-09_890_58A0_in-network-rates_0027_of_31.json.gz | 44 MB | 2 GB | 4.0K |
| 2026-09_890_58B0_in-network-rates_0023_of_30.json.gz | 44 MB | 2 GB | 3.4K |
| 2026-09_890_58D0_in-network-rates_0023_of_30.json.gz | 44 MB | 2 GB | 3.4K |
| 2026-09_890_58B0_in-network-rates_0026_of_30.json.gz | 43 MB | 2 GB | 4.2K |
| 2026-09_890_58D0_in-network-rates_0026_of_30.json.gz | 43 MB | 2 GB | 4.2K |
| 2026-09_890_58B0_in-network-rates_0011_of_30.json.gz | 43 MB | 2 GB | 13.0K |
| 2026-09_890_58D0_in-network-rates_0011_of_30.json.gz | 43 MB | 2 GB | 13.0K |
| 2026-09_266_38B0_in-network-rates_1_of_3.json.gz | 43 MB | 506 MB | 21.6K |
| 2026-09_890_58A0_in-network-rates_0029_of_31.json.gz | 42 MB | 2 GB | 5.0K |
| 2026-09_890_58B0_in-network-rates_0028_of_30.json.gz | 42 MB | 2 GB | 5.0K |
| 2026-09_890_58D0_in-network-rates_0028_of_30.json.gz | 42 MB | 2 GB | 5.0K |
| 2026-09_890_58A0_in-network-rates_0011_of_31.json.gz | 42 MB | 2 GB | 12.5K |
| 2026-09_890_58A0_in-network-rates_0003_of_31.json.gz | 42 MB | 2 GB | 7.6K |
| 2026-09_890_58B0_in-network-rates_0003_of_30.json.gz | 42 MB | 2 GB | 5.6K |
| 2026-09_890_58D0_in-network-rates_0003_of_30.json.gz | 42 MB | 2 GB | 5.6K |
| 2026-09_890_58A0_in-network-rates_0008_of_31.json.gz | 42 MB | 2 GB | 22.8K |
| 2026-09_890_58B0_in-network-rates_0008_of_30.json.gz | 42 MB | 2 GB | 10.0K |
| 2026-09_890_58D0_in-network-rates_0008_of_30.json.gz | 42 MB | 2 GB | 10.0K |
| 2026-09_890_58B0_in-network-rates_0007_of_30.json.gz | 41 MB | 2 GB | 9.3K |
| 2026-09_890_58D0_in-network-rates_0007_of_30.json.gz | 41 MB | 2 GB | 9.3K |
| 2026-09_370_55A0_in-network-rates.json.gz | 41 MB | 2 GB | 25.5K |
| 2026-09_370_55D0_in-network-rates.json.gz | 41 MB | 2 GB | 25.5K |
| 2026-09_890_58B0_in-network-rates_0010_of_30.json.gz | 41 MB | 2 GB | 12.2K |
| 2026-09_890_58D0_in-network-rates_0010_of_30.json.gz | 41 MB | 2 GB | 12.2K |
| 2026-09_890_58A0_in-network-rates_0007_of_31.json.gz | 41 MB | 2 GB | 9.2K |
| 2026-09_890_58B0_in-network-rates_0006_of_30.json.gz | 40 MB | 2 GB | 7.3K |
| 2026-09_890_58D0_in-network-rates_0006_of_30.json.gz | 40 MB | 2 GB | 7.3K |
| 2026-09_890_58A0_in-network-rates_0010_of_31.json.gz | 40 MB | 2 GB | 11.5K |
| 2026-09_890_58A0_in-network-rates_0006_of_31.json.gz | 40 MB | 2 GB | 8.5K |
| 2026-09_051_06E0_in-network-rates_1_of_9.json.gz | 39 MB | 543 MB | 21.5K |
| 2026-09_890_58A0_in-network-rates_0031_of_31.json.gz | 37 MB | 2 GB | 5.1K |
| 2026-09_890_58B0_in-network-rates_0027_of_30.json.gz | 37 MB | 2 GB | 4.7K |
| 2026-09_890_58D0_in-network-rates_0027_of_30.json.gz | 37 MB | 2 GB | 4.7K |
| 2026-09_890_58A0_in-network-rates_0028_of_31.json.gz | 37 MB | 2 GB | 4.7K |
| 2026-09_890_58B0_in-network-rates_0030_of_30.json.gz | 37 MB | 2 GB | 5.1K |
| 2026-09_890_58D0_in-network-rates_0030_of_30.json.gz | 37 MB | 2 GB | 5.1K |
| 2026-09_890_58B0_in-network-rates_0029_of_30.json.gz | 36 MB | 2 GB | 5.1K |
| 2026-09_890_58D0_in-network-rates_0029_of_30.json.gz | 36 MB | 2 GB | 5.1K |
| 2026-09_890_58A0_in-network-rates_0030_of_31.json.gz | 36 MB | 1 GB | 5.2K |
| 2026-09_890_58A0_in-network-rates_0026_of_31.json.gz | 35 MB | 2 GB | 3.5K |
| 2026-09_890_58B0_in-network-rates_0025_of_30.json.gz | 35 MB | 2 GB | 3.6K |
| 2026-09_890_58D0_in-network-rates_0025_of_30.json.gz | 35 MB | 2 GB | 3.6K |
| 2026-09_890_58B0_in-network-rates_0002_of_30.json.gz | 33 MB | 1 GB | 5.2K |
| 2026-09_890_58D0_in-network-rates_0002_of_30.json.gz | 33 MB | 1 GB | 5.2K |
| 2026-09_890_58A0_in-network-rates_0012_of_31.json.gz | 33 MB | 2 GB | 2.1K |
| 2026-09_890_58B0_in-network-rates_0009_of_30.json.gz | 33 MB | 1 GB | 10.5K |
| 2026-09_890_58D0_in-network-rates_0009_of_30.json.gz | 33 MB | 1 GB | 10.5K |
| 2026-09_890_58B0_in-network-rates_0012_of_30.json.gz | 33 MB | 2 GB | 2.3K |
| 2026-09_890_58D0_in-network-rates_0012_of_30.json.gz | 33 MB | 2 GB | 2.3K |
| 2026-09_890_58A0_in-network-rates_0009_of_31.json.gz | 33 MB | 1 GB | 11.1K |
| 2026-09_890_58B0_in-network-rates_0001_of_30.json.gz | 33 MB | 2 GB | 1.9K |
| 2026-09_890_58D0_in-network-rates_0001_of_30.json.gz | 33 MB | 2 GB | 1.9K |
| 2026-09_890_58A0_in-network-rates_0002_of_31.json.gz | 32 MB | 1 GB | 5.2K |
| 2026-09_890_58A0_in-network-rates_0001_of_31.json.gz | 32 MB | 2 GB | 1.6K |
| 2026-09_430_65B0_in-network-rates_2_of_4.json.gz | 31 MB | 665 MB | 14.0K |
| 2026-09_430_65E0_in-network-rates_4_of_4.json.gz | 31 MB | 665 MB | 14.0K |
| 2026-09_051_06B0_in-network-rates_2_of_5.json.gz | 31 MB | 315 MB | 18.7K |
| 2026-09_250_31H0_in-network-rates.json.gz | 30 MB | 165 MB | 11.8K |
| 2026-09_051_06B0_in-network-rates_3_of_5.json.gz | 30 MB | 407 MB | 18.7K |
| 2026-09_250_31B0_in-network-rates.json.gz | 29 MB | 150 MB | 11.1K |
| 2026-09_320_33B0_in-network-rates_08_of_10.json.gz | 29 MB | 559 MB | 2.0K |
| 2026-09_720_27B0_in-network-rates_25_of_25.json.gz | 27 MB | 583 MB | 20.2K |
| 2026-09_320_33B0_in-network-rates_05_of_10.json.gz | 25 MB | 495 MB | 2.0K |
| 2026-09_320_33D0_in-network-rates_03_of_10.json.gz | 25 MB | 492 MB | 2.0K |
| 2026-09_320_33B0_in-network-rates_04_of_10.json.gz | 25 MB | 482 MB | 2.0K |
| 2026-09_320_33D0_in-network-rates_01_of_10.json.gz | 24 MB | 467 MB | 2.0K |
| 2026-09_320_33D0_in-network-rates_09_of_10.json.gz | 24 MB | 469 MB | 2.0K |
| 2026-09_890_58A0_in-network-rates_0013_of_31.json.gz | 24 MB | 1 GB | 11.8K |
| 2026-09_320_33D0_in-network-rates_07_of_10.json.gz | 24 MB | 467 MB | 2.0K |
| 2026-09_890_58B0_in-network-rates_0013_of_30.json.gz | 24 MB | 992 MB | 11.9K |
| 2026-09_890_58D0_in-network-rates_0013_of_30.json.gz | 24 MB | 992 MB | 11.9K |
| 2026-09_720_27B0_in-network-rates_14_of_25.json.gz | 24 MB | 412 MB | 900 |
| 2026-09_320_33D0_in-network-rates_06_of_10.json.gz | 24 MB | 463 MB | 2.0K |
| 2026-09_320_33D0_in-network-rates_05_of_10.json.gz | 24 MB | 461 MB | 2.0K |
| 2026-09_890_58B0_in-network-rates_0016_of_30.json.gz | 23 MB | 998 MB | 11.9K |
| 2026-09_890_58D0_in-network-rates_0016_of_30.json.gz | 23 MB | 998 MB | 11.9K |
| 2026-09_690_08B0_in-network-rates_12_of_35.json.gz | 23 MB | 2 GB | 596 |
| 2026-09_690_08D0_in-network-rates_12_of_35.json.gz | 23 MB | 2 GB | 596 |
| 2026-09_890_58A0_in-network-rates_0024_of_31.json.gz | 23 MB | 1 GB | 1.7K |
| 2026-09_690_08N0_in-network-rates_12_of_35.json.gz | 23 MB | 2 GB | 596 |
| 2026-09_720_27B0_in-network-rates_20_of_25.json.gz | 23 MB | 393 MB | 900 |
| 2026-09_320_33B0_in-network-rates_03_of_10.json.gz | 22 MB | 436 MB | 2.0K |
| 2026-09_320_33D0_in-network-rates_08_of_10.json.gz | 22 MB | 436 MB | 2.0K |
| 2026-09_320_33B0_in-network-rates_09_of_10.json.gz | 22 MB | 435 MB | 2.0K |
| 2026-09_320_33B0_in-network-rates_02_of_10.json.gz | 22 MB | 431 MB | 2.0K |
| 2026-09_890_58A0_in-network-rates_0016_of_31.json.gz | 22 MB | 948 MB | 11.5K |
| 2026-09_320_33D0_in-network-rates_02_of_10.json.gz | 22 MB | 424 MB | 2.0K |
| 2026-09_361_50I0_in-network-rates.json.gz | 22 MB | 391 MB | 50.6K |
| 2026-09_890_58A0_in-network-rates_0023_of_31.json.gz | 22 MB | 984 MB | 1.6K |
| 2026-09_720_27B0_in-network-rates_18_of_25.json.gz | 21 MB | 370 MB | 900 |
| 2026-09_720_27B0_in-network-rates_04_of_25.json.gz | 21 MB | 367 MB | 900 |
| 2026-09_890_58B0_in-network-rates_0014_of_30.json.gz | 21 MB | 890 MB | 11.8K |
| 2026-09_890_58D0_in-network-rates_0014_of_30.json.gz | 21 MB | 890 MB | 11.8K |
| 2026-09_320_33B0_in-network-rates_06_of_10.json.gz | 21 MB | 404 MB | 2.0K |
| 2026-09_720_27Q2_in-network-rates_15_of_25.json.gz | 20 MB | 364 MB | 900 |
| 2026-09_890_58A0_in-network-rates_0014_of_31.json.gz | 20 MB | 844 MB | 11.7K |
| 2026-09_720_27B0_in-network-rates_21_of_25.json.gz | 20 MB | 333 MB | 900 |
| 2026-09_720_27B0_in-network-rates_05_of_25.json.gz | 20 MB | 339 MB | 900 |
| 2026-09_720_27B0_in-network-rates_11_of_25.json.gz | 20 MB | 333 MB | 900 |
| 2026-09_320_33B0_in-network-rates_07_of_10.json.gz | 20 MB | 382 MB | 2.0K |
| 2026-09_051_06S0_in-network-rates_1_of_2.json.gz | 19 MB | 318 MB | 21.1K |
| 2026-09_720_27B0_in-network-rates_09_of_25.json.gz | 19 MB | 329 MB | 900 |
| 2026-09_720_27Q2_in-network-rates_16_of_25.json.gz | 19 MB | 337 MB | 900 |
| 2026-09_720_27B0_in-network-rates_17_of_25.json.gz | 18 MB | 302 MB | 900 |
| 2026-09_720_27B0_in-network-rates_19_of_25.json.gz | 18 MB | 309 MB | 900 |
| 2026-09_720_27B0_in-network-rates_03_of_25.json.gz | 18 MB | 299 MB | 900 |
| 2026-09_720_27B0_in-network-rates_15_of_25.json.gz | 18 MB | 296 MB | 900 |
| 2026-09_720_27Q2_in-network-rates_25_of_25.json.gz | 18 MB | 550 MB | 23.9K |
| 2026-09_720_27Q2_in-network-rates_20_of_25.json.gz | 18 MB | 314 MB | 900 |
| 2026-09_320_33B0_in-network-rates_01_of_10.json.gz | 17 MB | 339 MB | 2.0K |
| 2026-09_890_58B0_in-network-rates_0021_of_30.json.gz | 17 MB | 783 MB | 9.3K |
| 2026-09_890_58D0_in-network-rates_0021_of_30.json.gz | 17 MB | 783 MB | 9.3K |
| 2026-09_361_50J0_in-network-rates.json.gz | 17 MB | 351 MB | 50.6K |
| 2026-09_890_58B0_in-network-rates_0018_of_30.json.gz | 17 MB | 733 MB | 10.9K |
| 2026-09_890_58D0_in-network-rates_0018_of_30.json.gz | 17 MB | 733 MB | 10.9K |
| 2026-09_890_58B0_in-network-rates_0019_of_30.json.gz | 17 MB | 706 MB | 10.7K |
| 2026-09_890_58D0_in-network-rates_0019_of_30.json.gz | 17 MB | 706 MB | 10.7K |
| 2026-09_720_27B0_in-network-rates_08_of_25.json.gz | 17 MB | 284 MB | 900 |
| 2026-09_890_58A0_in-network-rates_0021_of_31.json.gz | 17 MB | 773 MB | 8.3K |
| 2026-09_720_27Q2_in-network-rates_09_of_25.json.gz | 17 MB | 292 MB | 900 |
| 2026-09_890_58B0_in-network-rates_0015_of_30.json.gz | 17 MB | 689 MB | 11.5K |
| 2026-09_890_58D0_in-network-rates_0015_of_30.json.gz | 17 MB | 689 MB | 11.5K |
| 2026-09_890_58A0_in-network-rates_0019_of_31.json.gz | 17 MB | 715 MB | 10.2K |
| 2026-09_890_58B0_in-network-rates_0017_of_30.json.gz | 16 MB | 667 MB | 11.2K |
| 2026-09_890_58D0_in-network-rates_0017_of_30.json.gz | 16 MB | 667 MB | 11.2K |
| 2026-09_890_58B0_in-network-rates_0020_of_30.json.gz | 16 MB | 702 MB | 9.8K |
| 2026-09_890_58D0_in-network-rates_0020_of_30.json.gz | 16 MB | 702 MB | 9.8K |
| 2026-09_720_27B0_in-network-rates_16_of_25.json.gz | 16 MB | 268 MB | 900 |
| 2026-09_720_27Q2_in-network-rates_01_of_25.json.gz | 16 MB | 285 MB | 900 |
| 2026-09_890_58A0_in-network-rates_0015_of_31.json.gz | 16 MB | 660 MB | 11.6K |
| 2026-09_690_08B0_in-network-rates_16_of_35.json.gz | 16 MB | 1 GB | 596 |
| 2026-09_690_08D0_in-network-rates_16_of_35.json.gz | 16 MB | 1 GB | 596 |
| 2026-09_720_27B0_in-network-rates_02_of_25.json.gz | 16 MB | 273 MB | 900 |
| 2026-09_890_58A0_in-network-rates_0017_of_31.json.gz | 16 MB | 659 MB | 11.0K |
| 2026-09_720_27Q2_in-network-rates_04_of_25.json.gz | 16 MB | 278 MB | 900 |
| 2026-09_890_58A0_in-network-rates_0018_of_31.json.gz | 16 MB | 664 MB | 10.7K |
| 2026-09_720_27Q2_in-network-rates_21_of_25.json.gz | 15 MB | 269 MB | 900 |
| 2026-09_890_58B0_in-network-rates_0024_of_30.json.gz | 15 MB | 671 MB | 8.4K |
| 2026-09_890_58D0_in-network-rates_0024_of_30.json.gz | 15 MB | 671 MB | 8.4K |
| 2026-09_890_58A0_in-network-rates_0020_of_31.json.gz | 15 MB | 677 MB | 9.0K |
| 2026-09_720_27B0_in-network-rates_06_of_25.json.gz | 15 MB | 251 MB | 900 |
| 2026-09_720_27Q2_in-network-rates_18_of_25.json.gz | 15 MB | 263 MB | 900 |
| 2026-09_720_27B0_in-network-rates_12_of_25.json.gz | 15 MB | 246 MB | 900 |
| 2026-09_720_27B0_in-network-rates_07_of_25.json.gz | 15 MB | 243 MB | 900 |
| 2026-09_320_33D0_in-network-rates_04_of_10.json.gz | 15 MB | 286 MB | 2.0K |
| 2026-09_720_27Q2_in-network-rates_05_of_25.json.gz | 14 MB | 256 MB | 900 |
| 2026-09_720_27B0_in-network-rates_10_of_25.json.gz | 14 MB | 237 MB | 900 |
| 2026-09_690_08N0_in-network-rates_16_of_35.json.gz | 14 MB | 1 GB | 596 |
| 2026-09_720_27Q2_in-network-rates_06_of_25.json.gz | 14 MB | 246 MB | 900 |
| 2026-09_720_27Q2_in-network-rates_03_of_25.json.gz | 14 MB | 247 MB | 900 |
| 2026-09_720_27Q2_in-network-rates_02_of_25.json.gz | 14 MB | 244 MB | 900 |
| 2026-09_720_27B0_in-network-rates_01_of_25.json.gz | 14 MB | 227 MB | 900 |
| 2026-09_720_27Q2_in-network-rates_07_of_25.json.gz | 14 MB | 243 MB | 900 |
| 2026-09_378_49A0_in-network-rates_01_of_03.json.gz | 14 MB | 128 MB | 15.8K |
| 2026-09_720_27Q2_in-network-rates_08_of_25.json.gz | 14 MB | 241 MB | 900 |
| 2026-09_720_27Q2_in-network-rates_14_of_25.json.gz | 14 MB | 240 MB | 900 |
| 2026-09_590_10E0_in-network-rates_2_of_2.json.gz | 14 MB | 204 MB | 464.7K |
| 2026-09_690_08B0_in-network-rates_11_of_35.json.gz | 13 MB | 913 MB | 596 |
| 2026-09_690_08D0_in-network-rates_11_of_35.json.gz | 13 MB | 913 MB | 596 |
| 2026-09_890_58A0_in-network-rates_0025_of_31.json.gz | 13 MB | 554 MB | 7.4K |
| 2026-09_510_01B0_in-network-rates_14_of_29.json.gz | 13 MB | 48 MB | 1.1K |
| 2026-09_510_01C0_in-network-rates_14_of_29.json.gz | 13 MB | 48 MB | 1.1K |
| 2026-09_720_27Q2_in-network-rates_10_of_25.json.gz | 13 MB | 222 MB | 900 |
| 2026-09_720_27B0_in-network-rates_13_of_25.json.gz | 12 MB | 198 MB | 900 |
| 2026-09_720_27Q2_in-network-rates_11_of_25.json.gz | 12 MB | 210 MB | 900 |
| 2026-09_720_27Q2_in-network-rates_17_of_25.json.gz | 12 MB | 218 MB | 900 |
| 2026-09_690_08N0_in-network-rates_11_of_35.json.gz | 12 MB | 815 MB | 596 |
| 2026-09_720_27Q2_in-network-rates_13_of_25.json.gz | 12 MB | 208 MB | 900 |
| 2026-09_690_08B0_in-network-rates_15_of_35.json.gz | 12 MB | 872 MB | 596 |
| 2026-09_690_08D0_in-network-rates_15_of_35.json.gz | 12 MB | 872 MB | 596 |
| 2026-09_690_08B0_in-network-rates_20_of_35.json.gz | 12 MB | 1 GB | 596 |
| 2026-09_690_08D0_in-network-rates_20_of_35.json.gz | 12 MB | 1 GB | 596 |
| 2026-09_051_06E0_in-network-rates_5_of_9.json.gz | 12 MB | 219 MB | 19.8K |
| 2026-09_720_27Q2_in-network-rates_12_of_25.json.gz | 12 MB | 203 MB | 900 |
| 2026-09_890_58B0_in-network-rates_0022_of_30.json.gz | 11 MB | 514 MB | 7.4K |
| 2026-09_890_58D0_in-network-rates_0022_of_30.json.gz | 11 MB | 514 MB | 7.4K |
| 2026-09_690_08N0_in-network-rates_15_of_35.json.gz | 11 MB | 807 MB | 596 |
| 2026-09_690_08B0_in-network-rates_4_of_35.json.gz | 11 MB | 696 MB | 596 |
| 2026-09_690_08D0_in-network-rates_4_of_35.json.gz | 11 MB | 696 MB | 596 |
| 2026-09_510_01B0_in-network-rates_3_of_29.json.gz | 11 MB | 37 MB | 1.1K |
| 2026-09_510_01C0_in-network-rates_3_of_29.json.gz | 11 MB | 37 MB | 1.1K |
| 2026-09_690_08B0_in-network-rates_3_of_35.json.gz | 11 MB | 699 MB | 596 |
| 2026-09_690_08D0_in-network-rates_3_of_35.json.gz | 11 MB | 699 MB | 596 |
| 2026-09_690_08B0_in-network-rates_10_of_35.json.gz | 11 MB | 699 MB | 596 |
| 2026-09_690_08D0_in-network-rates_10_of_35.json.gz | 11 MB | 699 MB | 596 |
| 2026-09_690_08B0_in-network-rates_9_of_35.json.gz | 11 MB | 715 MB | 596 |
| 2026-09_690_08D0_in-network-rates_9_of_35.json.gz | 11 MB | 715 MB | 596 |
| 2026-09_690_08N0_in-network-rates_20_of_35.json.gz | 11 MB | 998 MB | 596 |
| 2026-09_690_08B0_in-network-rates_6_of_35.json.gz | 10 MB | 696 MB | 596 |
| 2026-09_690_08D0_in-network-rates_6_of_35.json.gz | 10 MB | 696 MB | 596 |
A file referenced by more than one licensee appears on each licensee’s page. A dash means no separate measurement was recorded; it does not mean the source contains no rates.