Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Apr 1 18:02:55 UTC 2022
This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.
Daily listings are sent to bgp-stats at lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 02 Apr, 2022
BGP Table (Global) as seen in Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 894261
Prefixes after maximum aggregation (per Origin AS): 336800
Deaggregation factor: 2.66
Unique aggregates announced (without unneeded subnets): 429313
Total ASes present in the Internet Routing Table: 72943
Prefixes per ASN: 12.26
Origin-only ASes present in the Internet Routing Table: 62600
Origin ASes announcing only one prefix: 25737
Transit ASes present in the Internet Routing Table: 10343
Transit-only ASes present in the Internet Routing Table: 374
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 64
Max AS path prepend of ASN (267602) 58
Prefixes from unregistered ASNs in the Routing Table: 857
Number of instances of unregistered ASNs: 862
Number of 32-bit ASNs allocated by the RIRs: 38970
Number of 32-bit ASNs visible in the Routing Table: 32390
Prefixes from 32-bit ASNs in the Routing Table: 151943
Number of bogon 32-bit ASNs visible in the Routing Table: 25
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 458
Number of addresses announced to Internet: 3067757056
Equivalent to 182 /8s, 218 /16s and 66 /24s
Percentage of available address space announced: 82.9
Percentage of allocated address space announced: 82.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 303502
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 234083
Total APNIC prefixes after maximum aggregation: 66355
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 229063
Unique aggregates announced from the APNIC address blocks: 94311
APNIC Region origin ASes present in the Internet Routing Table: 12508
APNIC Prefixes per ASN: 18.31
APNIC Region origin ASes announcing only one prefix: 3558
APNIC Region transit ASes present in the Internet Routing Table: 1718
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7709
Number of APNIC addresses announced to Internet: 773920384
Equivalent to 46 /8s, 33 /16s and 22 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-151865
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 260493
Total ARIN prefixes after maximum aggregation: 119704
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 260322
Unique aggregates announced from the ARIN address blocks: 124053
ARIN Region origin ASes present in the Internet Routing Table: 19004
ARIN Prefixes per ASN: 13.70
ARIN Region origin ASes announcing only one prefix: 6901
ARIN Region transit ASes present in the Internet Routing Table: 1950
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4423
Number of ARIN addresses announced to Internet: 1295374080
Equivalent to 77 /8s, 53 /16s and 215 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8,
66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8,
73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8,
99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 256769
Total RIPE prefixes after maximum aggregation: 117224
RIPE Deaggregation factor: 2.19
Prefixes being announced from the RIPE address blocks: 254143
Unique aggregates announced from the RIPE address blocks: 150645
RIPE Region origin ASes present in the Internet Routing Table: 28112
RIPE Prefixes per ASN: 9.04
RIPE Region origin ASes announcing only one prefix: 12060
RIPE Region transit ASes present in the Internet Routing Table: 3974
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10661
Number of RIPE addresses announced to Internet: 714114944
Equivalent to 42 /8s, 144 /16s and 135 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-213403
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 114180
Total LACNIC prefixes after maximum aggregation: 27436
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 114160
Unique aggregates announced from the LACNIC address blocks: 48228
LACNIC Region origin ASes present in the Internet Routing Table: 10948
LACNIC Prefixes per ASN: 10.43
LACNIC Region origin ASes announcing only one prefix: 2654
LACNIC Region transit ASes present in the Internet Routing Table: 2205
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 64
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8643
Number of LACNIC addresses announced to Internet: 176362240
Equivalent to 10 /8s, 131 /16s and 19 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 27879
Total AfriNIC prefixes after maximum aggregation: 5433
AfriNIC Deaggregation factor: 5.13
Prefixes being announced from the AfriNIC address blocks: 36115
Unique aggregates announced from the AfriNIC address blocks: 11686
AfriNIC Region origin ASes present in the Internet Routing Table: 1622
AfriNIC Prefixes per ASN: 22.27
AfriNIC Region origin ASes announcing only one prefix: 564
AfriNIC Region transit ASes present in the Internet Routing Table: 327
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 34
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 954
Number of AfriNIC addresses announced to Internet: 107723520
Equivalent to 6 /8s, 107 /16s and 187 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9808 9146 8884 44 CHINAMOBILE-CN China Mobile Communicati
7545 5906 789 699 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4713 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3607 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3499 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3435 1880 56 VNPT-AS-VN VNPT Corp, VN
4766 2497 11121 601 KIXS-AS-KR Korea Telecom, KR
9498 2391 491 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2147 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2114 429 196 TATACOMM-AS TATA Communications formerl
Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 6152 10256 2661 AMAZON-02, US
11492 4456 296 714 CABLEONE, US
22773 3938 3060 365 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3900 264 31 VIASAT-SP-BACKBONE, US
16625 3635 1870 2562 AKAMAI-AS, US
6327 3419 1318 62 SHAW, CA
749 2882 50780 2138 DNIC-AS-00749, US
30036 2610 373 153 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2522 4962 425 CENTURYLINK-US-LEGACY-QWEST, US
20115 2256 3042 495 CHARTER-20115, US
Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 6801 1730 149 UNI2-AS, ES
9121 6714 1692 17 TTNET, TR
8551 4001 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3928 3360 200 AKAMAI-ASN1, NL
39891 3819 220 34 ALJAWWALSTC-AS, SA
12389 2959 2274 909 ROSTELECOM-AS, RU
6849 2859 355 21 UKRTELNET, UA
9009 2472 248 1292 M247, GB
34984 2214 356 620 TELLCOM-AS, TR
47331 2084 328 1596 TTNET, TR
Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 10511 3404 556 Uninet S.A. de C.V., MX
10620 3475 519 714 Telmex Colombia S.A., CO
11830 2430 369 62 Instituto Costarricense de Electricidad
13999 1729 293 471 Mega Cable, S.A. de C.V., MX
6503 1447 355 524 Axtel, S.A.B. de C.V., MX
28573 1393 2332 253 CLARO S.A., BR
3816 1256 667 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1084 369 21 Telefonica del Peru S.A.A., PE
11664 1006 192 447 Techtel LMDS Comunicaciones Interactiva
11172 956 133 63 Alestra, S. de R.L. de C.V., MX
Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1583 393 21 LINKdotNET-AS, EG
24835 1548 523 33 RAYA-AS, EG
36992 1303 1518 261 ETISALAT-MISR, EG
36903 1199 545 114 MT-MPLS, MA
29571 894 64 59 ORANGE-COTE-IVOIRE, CI
36935 771 520 42 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 517 51 34 WANANCHI-, KE
37342 469 32 1 MOVITEL, MZ
23889 424 232 16 MauritiusTelecom, MU
Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 10511 3404 556 Uninet S.A. de C.V., MX
9808 9146 8884 44 CHINAMOBILE-CN China Mobile Communicati
12479 6801 1730 149 UNI2-AS, ES
9121 6714 1692 17 TTNET, TR
16509 6152 10256 2661 AMAZON-02, US
7545 5906 789 699 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4713 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4456 296 714 CABLEONE, US
8551 4001 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
22773 3938 3060 365 ASN-CXA-ALL-CCI-22773-RDC, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9146 9102 CHINAMOBILE-CN China Mobile Communications Grou
9121 6714 6697 TTNET, TR
12479 6801 6652 UNI2-AS, ES
7545 5906 5207 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4713 4638 ERX-CERNET-BKB China Education and Research Net
8551 4001 3962 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3900 3869 VIASAT-SP-BACKBONE, US
39891 3819 3785 ALJAWWALSTC-AS, SA
11492 4456 3742 CABLEONE, US
20940 3928 3728 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
398083 UNALLOCATED 5.133.124.0/24 399587 UT, US
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US
18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US
32306 UNALLOCATED 8.46.80.0/24 33652 CMCS, US
Complete listing at https://thyme.apnic.net/current/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://thyme.apnic.net/current/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.141.0.0/24 Origin: 395350 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
41.57.124.0/22 Origin: 37442 UNASSIGNED
41.57.124.0/22 Transit: 37204 TELONE, ZW
41.57.124.0/23 Origin: 37442 UNASSIGNED
41.57.124.0/23 Transit: 37204 TELONE, ZW
41.57.124.0/24 Origin: 37442 UNASSIGNED
41.57.124.0/24 Transit: 37204 TELONE, ZW
Complete listing at https://thyme.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:13 /10:40 /11:102 /12:307
/13:588 /14:1204 /15:2055 /16:13552 /17:8313 /18:13886
/19:25175 /20:43277 /21:52232 /22:108492 /23:95605 /24:528595
/25:809 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
9121 5869 6714 TTNET, TR
12479 5780 6801 UNI2-AS, ES
8151 4165 10511 Uninet S.A. de C.V., MX
8551 3475 4001 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3364 4456 CABLEONE, US
6327 3231 3419 SHAW, CA
39891 3131 3819 ALJAWWALSTC-AS, SA
7155 2990 3900 VIASAT-SP-BACKBONE, US
22773 2936 3938 ASN-CXA-ALL-CCI-22773-RDC, US
6849 2712 2859 UKRTELNET, UA
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1843 2:1036 3:154 4:7 5:3792 6:112
7:5 8:1563 9:1 11:172 12:1709 13:288
14:2386 15:189 16:44 17:380 18:148 20:194
21:4 22:188 23:5581 24:2291 25:6 27:2594
29:19 31:2440 32:96 34:1 35:69 36:1756
37:4416 38:2667 39:708 40:151 41:3930 42:998
43:2157 44:288 45:16106 46:4139 47:349 49:1682
50:1923 51:107 52:1409 53:1 54:362 55:710
56:8 57:58 58:1805 59:1196 60:955 61:2268
62:2487 63:1945 64:5512 65:2301 66:4859 67:2973
68:1180 69:4159 70:1343 71:658 72:3064 74:2661
75:1389 76:588 77:2149 78:3895 79:3104 80:1984
81:1738 82:1479 83:1197 84:1333 85:3645 86:714
87:1970 88:2697 89:3280 90:519 91:7620 92:1986
93:2607 94:3489 95:4752 96:1312 97:347 98:991
99:770 100:74 101:1029 102:2017 103:28748 104:4294
105:466 106:842 107:2510 108:824 109:4227 110:2068
111:3296 112:2011 113:1523 114:1480 115:1956 116:1904
117:2518 118:2268 119:1865 120:1679 121:1060 122:2553
123:2123 124:1594 125:2112 128:1196 129:1212 130:913
131:2073 132:763 133:373 134:1931 135:290 136:876
137:874 138:2427 139:1496 140:852 141:1389 142:1283
143:1483 144:1235 145:342 146:1772 147:1473 148:2214
149:1706 150:849 151:1077 152:1837 153:459 154:3513
155:1434 156:1899 157:1236 158:1029 159:2082 160:2440
161:1326 162:3464 163:1236 164:1643 165:1603 166:693
167:1717 168:3756 169:701 170:4435 171:823 172:3103
173:3075 174:1019 175:1129 176:3509 177:4569 178:3449
179:2000 180:2276 181:2950 182:3249 183:1942 184:2385
185:19483 186:4370 187:3667 188:3878 189:3139 190:8861
191:1309 192:11012 193:8588 194:6945 195:4970 196:2980
197:2407 198:6024 199:6016 200:7485 201:5663 202:10498
203:10016 204:4551 205:3380 206:3766 207:3400 208:4041
209:4662 210:4256 211:2453 212:4009 213:3407 214:1155
215:67 216:6448 217:2659 218:1261 219:573 220:1951
221:980 222:846 223:2140
End of report
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