[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 11 18:02:57 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 12 Mar, 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: 892760
Prefixes after maximum aggregation (per Origin AS): 335982
Deaggregation factor: 2.66
Unique aggregates announced (without unneeded subnets): 428829
Total ASes present in the Internet Routing Table: 72817
Prefixes per ASN: 12.26
Origin-only ASes present in the Internet Routing Table: 62477
Origin ASes announcing only one prefix: 25673
Transit ASes present in the Internet Routing Table: 10340
Transit-only ASes present in the Internet Routing Table: 383
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 53
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 935
Number of instances of unregistered ASNs: 938
Number of 32-bit ASNs allocated by the RIRs: 38762
Number of 32-bit ASNs visible in the Routing Table: 32261
Prefixes from 32-bit ASNs in the Routing Table: 151001
Number of bogon 32-bit ASNs visible in the Routing Table: 24
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 527
Number of addresses announced to Internet: 3068579968
Equivalent to 182 /8s, 230 /16s and 208 /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: 303160
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 233372
Total APNIC prefixes after maximum aggregation: 66144
APNIC Deaggregation factor: 3.53
Prefixes being announced from the APNIC address blocks: 228376
Unique aggregates announced from the APNIC address blocks: 94526
APNIC Region origin ASes present in the Internet Routing Table: 12459
APNIC Prefixes per ASN: 18.33
APNIC Region origin ASes announcing only one prefix: 3550
APNIC Region transit ASes present in the Internet Routing Table: 1723
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7662
Number of APNIC addresses announced to Internet: 774176768
Equivalent to 46 /8s, 37 /16s and 0 /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: 260476
Total ARIN prefixes after maximum aggregation: 119468
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 260455
Unique aggregates announced from the ARIN address blocks: 123999
ARIN Region origin ASes present in the Internet Routing Table: 18970
ARIN Prefixes per ASN: 13.73
ARIN Region origin ASes announcing only one prefix: 6883
ARIN Region transit ASes present in the Internet Routing Table: 1967
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: 4385
Number of ARIN addresses announced to Internet: 1295718912
Equivalent to 77 /8s, 59 /16s and 26 /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: 255917
Total RIPE prefixes after maximum aggregation: 116864
RIPE Deaggregation factor: 2.19
Prefixes being announced from the RIPE address blocks: 253109
Unique aggregates announced from the RIPE address blocks: 149852
RIPE Region origin ASes present in the Internet Routing Table: 28083
RIPE Prefixes per ASN: 9.01
RIPE Region origin ASes announcing only one prefix: 12050
RIPE Region transit ASes present in the Internet Routing Table: 3960
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: 10650
Number of RIPE addresses announced to Internet: 714185600
Equivalent to 42 /8s, 145 /16s and 155 /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: 114404
Total LACNIC prefixes after maximum aggregation: 27401
LACNIC Deaggregation factor: 4.18
Prefixes being announced from the LACNIC address blocks: 114406
Unique aggregates announced from the LACNIC address blocks: 48173
LACNIC Region origin ASes present in the Internet Routing Table: 10932
LACNIC Prefixes per ASN: 10.47
LACNIC Region origin ASes announcing only one prefix: 2638
LACNIC Region transit ASes present in the Internet Routing Table: 2207
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 53
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8627
Number of LACNIC addresses announced to Internet: 176305920
Equivalent to 10 /8s, 130 /16s and 55 /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: 27656
Total AfriNIC prefixes after maximum aggregation: 5413
AfriNIC Deaggregation factor: 5.11
Prefixes being announced from the AfriNIC address blocks: 35887
Unique aggregates announced from the AfriNIC address blocks: 11840
AfriNIC Region origin ASes present in the Internet Routing Table: 1603
AfriNIC Prefixes per ASN: 22.39
AfriNIC Region origin ASes announcing only one prefix: 552
AfriNIC Region transit ASes present in the Internet Routing Table: 322
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: 937
Number of AfriNIC addresses announced to Internet: 107850240
Equivalent to 6 /8s, 109 /16s and 170 /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 9104 8886 46 CHINAMOBILE-CN China Mobile Communicati
7545 5881 788 692 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4676 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3603 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3491 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3435 1880 56 VNPT-AS-VN VNPT Corp, VN
4766 2545 11122 623 KIXS-AS-KR Korea Telecom, KR
9498 2385 475 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2169 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2109 429 197 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 6367 10249 2644 AMAZON-02, US
11492 4448 295 738 CABLEONE, US
22773 3946 3061 369 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3895 263 26 VIASAT-SP-BACKBONE, US
16625 3652 1882 2573 AKAMAI-AS, US
6327 3401 1318 62 SHAW, CA
749 2884 50780 2140 DNIC-AS-00749, US
30036 2613 374 136 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2513 4962 426 CENTURYLINK-US-LEGACY-QWEST, US
20115 2256 3042 499 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 6803 1730 149 UNI2-AS, ES
9121 6698 1692 17 TTNET, TR
8551 4014 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3935 3348 214 AKAMAI-ASN1, NL
39891 3818 220 33 ALJAWWALSTC-AS, SA
12389 2959 2274 909 ROSTELECOM-AS, RU
6849 2828 355 21 UKRTELNET, UA
9009 2470 250 1288 M247, GB
34984 2239 359 614 TELLCOM-AS, TR
47331 2069 328 1583 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 10455 3427 554 Uninet S.A. de C.V., MX
10620 3468 518 715 Telmex Colombia S.A., CO
11830 2429 369 62 Instituto Costarricense de Electricidad
13999 1706 291 473 Mega Cable, S.A. de C.V., MX
6503 1441 354 524 Axtel, S.A.B. de C.V., MX
28573 1396 2332 248 CLARO S.A., BR
3816 1254 666 146 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1133 2349 136 TIM SA, BR
6147 1092 369 21 Telefonica del Peru S.A.A., PE
11664 1008 192 447 Techtel LMDS Comunicaciones Interactiva
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 1588 393 21 LINKdotNET-AS, EG
24835 1545 523 32 RAYA-AS, EG
36992 1300 1518 262 ETISALAT-MISR, EG
36903 1199 545 114 MT-MPLS, MA
29571 908 64 62 ORANGE-COTE-IVOIRE, CI
36935 729 521 40 Vodafone-, EG
6713 613 1863 34 IAM-AS, MA
15399 517 51 34 WANANCHI-, KE
37342 469 32 1 MOVITEL, MZ
23889 421 232 15 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 10455 3427 554 Uninet S.A. de C.V., MX
9808 9104 8886 46 CHINAMOBILE-CN China Mobile Communicati
12479 6803 1730 149 UNI2-AS, ES
9121 6698 1692 17 TTNET, TR
16509 6367 10249 2644 AMAZON-02, US
7545 5881 788 692 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4676 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4448 295 738 CABLEONE, US
8551 4014 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
22773 3946 3061 369 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 9104 9058 CHINAMOBILE-CN China Mobile Communications Grou
9121 6698 6681 TTNET, TR
12479 6803 6654 UNI2-AS, ES
7545 5881 5189 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4676 4602 ERX-CERNET-BKB China Education and Research Net
8551 4014 3975 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3895 3869 VIASAT-SP-BACKBONE, US
39891 3818 3785 ALJAWWALSTC-AS, SA
16509 6367 3723 AMAZON-02, US
20940 3935 3721 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 /12:305
/13:589 /14:1205 /15:2034 /16:13584 /17:8326 /18:13921
/19:25184 /20:43225 /21:52430 /22:108288 /23:95464 /24:527238
/25:796 /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 5848 6698 TTNET, TR
12479 5784 6803 UNI2-AS, ES
8151 4111 10455 Uninet S.A. de C.V., MX
8551 3479 4014 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3361 4448 CABLEONE, US
6327 3213 3401 SHAW, CA
39891 3130 3818 ALJAWWALSTC-AS, SA
7155 2988 3895 VIASAT-SP-BACKBONE, US
22773 2936 3946 ASN-CXA-ALL-CCI-22773-RDC, US
6849 2683 2828 UKRTELNET, UA
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1720 2:1060 3:154 4:7 5:3784 6:112
7:5 8:1558 9:1 11:172 12:1714 13:305
14:2392 15:176 16:42 17:376 18:146 20:183
21:4 22:188 23:5517 24:2333 25:6 27:2605
29:19 31:2420 32:96 34:1 35:64 36:1749
37:4361 38:2603 39:696 40:150 41:3946 42:846
43:2100 44:297 45:16063 46:4127 47:347 49:1685
50:1925 51:107 52:1374 53:1 54:328 55:760
56:8 57:58 58:1771 59:1199 60:966 61:2264
62:2455 63:1945 64:5493 65:2307 66:4867 67:2951
68:1195 69:4156 70:1352 71:670 72:3075 74:2639
75:1517 76:716 77:2108 78:3874 79:3105 80:1951
81:1688 82:1476 83:1215 84:1346 85:3639 86:720
87:1952 88:2656 89:3244 90:516 91:7611 92:2005
93:2584 94:3496 95:4782 96:1314 97:347 98:988
99:866 100:75 101:1035 102:1969 103:28539 104:4259
105:461 106:851 107:2506 108:796 109:4193 110:2073
111:3278 112:2007 113:1495 114:1492 115:1957 116:1893
117:2481 118:2251 119:1860 120:1673 121:1060 122:2557
123:2112 124:1614 125:2107 128:1198 129:1188 130:922
131:2072 132:754 133:373 134:1932 135:290 136:876
137:871 138:2437 139:1239 140:1138 141:1382 142:1277
143:1490 144:1237 145:344 146:1765 147:1497 148:2210
149:1714 150:854 151:1082 152:1829 153:456 154:3626
155:1434 156:1879 157:1238 158:1025 159:2073 160:2411
161:1320 162:3455 163:1226 164:1667 165:1602 166:675
167:1719 168:3730 169:694 170:4425 171:823 172:3044
173:3079 174:1021 175:1128 176:3498 177:4593 178:3440
179:1984 180:2275 181:2934 182:3249 183:1944 184:2389
185:19382 186:4312 187:3674 188:3856 189:3098 190:8860
191:1310 192:11053 193:8551 194:6957 195:4967 196:2944
197:2352 198:5999 199:6006 200:7498 201:5666 202:10445
203:9981 204:4563 205:3384 206:3778 207:3387 208:4057
209:4652 210:4252 211:2446 212:4002 213:3388 214:1161
215:66 216:6432 217:2632 218:1246 219:596 220:1949
221:984 222:847 223:2172
End of report
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