[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Dec 10 18:03:00 UTC 2021
This is an automated weekly mailing describing the state of the Gobal
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>.
Global IPv4 Routing Table Report 04:00 +10GMT Sat 11 Dec, 2021
BGP Table as seen in Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 873510
Prefixes after maximum aggregation (per Origin AS): 330896
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 422751
Number of IPv4 prefixes with ROAs (including AS0): 250812
Total ASes present in the Internet Routing Table: 72430
Prefixes per ASN: 12.06
Origin-only ASes present in the Internet Routing Table: 62186
Origin ASes announcing only one prefix: 25663
Transit ASes present in the Internet Routing Table: 10244
Transit-only ASes present in the Internet Routing Table: 361
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: 951
Number of instances of unregistered ASNs: 953
Number of 32-bit ASNs allocated by the RIRs: 38043
Number of 32-bit ASNs visible in the Routing Table: 31579
Prefixes from 32-bit ASNs in the Routing Table: 145981
Number of bogon 32-bit ASNs visible in the Routing Table: 20
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 881
Number of addresses announced to Internet: 3073123072
Equivalent to 183 /8s, 44 /16s and 35 /24s
Percentage of available address space announced: 83.0
Percentage of allocated address space announced: 83.0
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: 290843
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 231546
Total APNIC prefixes after maximum aggregation: 64977
APNIC Deaggregation factor: 3.56
Prefixes being announced from the APNIC address blocks: 226604
Unique aggregates announced from the APNIC address blocks: 93274
APNIC Region origin ASes present in the Internet Routing Table: 12166
APNIC Prefixes per ASN: 18.63
APNIC Region origin ASes announcing only one prefix: 3471
APNIC Region transit ASes present in the Internet Routing Table: 1710
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7347
Number of APNIC addresses announced to Internet: 773409408
Equivalent to 46 /8s, 25 /16s and 74 /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: 256989
Total ARIN prefixes after maximum aggregation: 118604
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 256687
Unique aggregates announced from the ARIN address blocks: 122502
ARIN Region origin ASes present in the Internet Routing Table: 18933
ARIN Prefixes per ASN: 13.56
ARIN Region origin ASes announcing only one prefix: 6858
ARIN Region transit ASes present in the Internet Routing Table: 1952
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4249
Number of ARIN addresses announced to Internet: 1300858112
Equivalent to 77 /8s, 137 /16s and 133 /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: 243685
Total RIPE prefixes after maximum aggregation: 114180
RIPE Deaggregation factor: 2.13
Prefixes being announced from the RIPE address blocks: 239857
Unique aggregates announced from the RIPE address blocks: 147277
RIPE Region origin ASes present in the Internet Routing Table: 28167
RIPE Prefixes per ASN: 8.52
RIPE Region origin ASes announcing only one prefix: 12145
RIPE Region transit ASes present in the Internet Routing Table: 3922
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: 10567
Number of RIPE addresses announced to Internet: 713617024
Equivalent to 42 /8s, 136 /16s and 238 /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: 113110
Total LACNIC prefixes after maximum aggregation: 27140
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 113933
Unique aggregates announced from the LACNIC address blocks: 47566
LACNIC Region origin ASes present in the Internet Routing Table: 10822
LACNIC Prefixes per ASN: 10.53
LACNIC Region origin ASes announcing only one prefix: 2638
LACNIC Region transit ASes present in the Internet Routing Table: 2157
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 53
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8503
Number of LACNIC addresses announced to Internet: 176373504
Equivalent to 10 /8s, 131 /16s and 63 /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: 27229
Total AfriNIC prefixes after maximum aggregation: 5279
AfriNIC Deaggregation factor: 5.16
Prefixes being announced from the AfriNIC address blocks: 35548
Unique aggregates announced from the AfriNIC address blocks: 11330
AfriNIC Region origin ASes present in the Internet Routing Table: 1584
AfriNIC Prefixes per ASN: 22.44
AfriNIC Region origin ASes announcing only one prefix: 551
AfriNIC Region transit ASes present in the Internet Routing Table: 316
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 27
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 913
Number of AfriNIC addresses announced to Internet: 108281600
Equivalent to 6 /8s, 116 /16s and 63 /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 8756 9000 57 CHINAMOBILE-CN China Mobile Communicati
7545 5859 787 683 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4693 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3536 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3484 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3248 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2480 11119 578 KIXS-AS-KR Korea Telecom, KR
9498 2193 475 236 BBIL-AP BHARTI Airtel Ltd., IN
45090 2137 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2121 429 203 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 5995 10072 2563 AMAZON-02, US
11492 4583 304 817 CABLEONE, US
22773 4042 3046 395 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
16625 3648 1879 2540 AKAMAI-AS, US
6327 3390 1318 64 SHAW, CA
749 2890 50784 2146 DNIC-AS-00749, US
30036 2600 374 168 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2521 5043 433 CENTURYLINK-US-LEGACY-QWEST, US
20115 2237 3032 502 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 6827 1733 150 UNI2-AS, ES
20940 3862 3348 210 AKAMAI-ASN1, NL
8551 3496 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3271 187 23 ALJAWWALSTC-AS, SA
12389 2933 2279 896 ROSTELECOM-AS, RU
9009 2626 276 1392 M247, GB
34984 2205 355 597 TELLCOM-AS, TR
58224 1762 919 581 TCI, IR
13188 1609 100 27 TRIOLAN, UA
61317 1545 212 902 ASDETUK www.heficed.com, GB
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 10546 3450 580 Uninet S.A. de C.V., MX
10620 3251 491 832 Telmex Colombia S.A., CO
11830 2466 369 62 Instituto Costarricense de Electricidad
13999 1627 288 460 Mega Cable, S.A. de C.V., MX
6503 1435 355 522 Axtel, S.A.B. de C.V., MX
28573 1392 2319 263 CLARO S.A., BR
3816 1242 654 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1133 2350 136 TIM SA, BR
6147 1087 370 21 Telefonica del Peru S.A.A., PE
11664 989 189 442 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 1625 393 21 LINKdotNET-AS, EG
24835 1548 499 32 RAYA-AS, EG
36992 1286 1430 268 ETISALAT-MISR, EG
36903 1195 543 114 MT-MPLS, MA
29571 827 68 11 ORANGE-COTE-IVOIRE, CI
36935 685 521 39 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 517 50 32 WANANCHI-, KE
37342 462 32 1 MOVITEL, MZ
23889 428 232 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 10546 3450 580 Uninet S.A. de C.V., MX
9808 8756 9000 57 CHINAMOBILE-CN China Mobile Communicati
12479 6827 1733 150 UNI2-AS, ES
16509 5995 10072 2563 AMAZON-02, US
7545 5859 787 683 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4693 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4583 304 817 CABLEONE, US
22773 4042 3046 395 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
20940 3862 3348 210 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 8756 8699 CHINAMOBILE-CN China Mobile Communications Grou
12479 6827 6677 UNI2-AS, ES
7545 5859 5176 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4693 4619 ERX-CERNET-BKB China Education and Research Net
7155 3950 3920 VIASAT-SP-BACKBONE, US
11492 4583 3766 CABLEONE, US
20940 3862 3652 AKAMAI-ASN1, NL
22773 4042 3647 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3536 3516 VIETEL-AS-AP Viettel Group, VN
8551 3496 3457 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
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
46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, 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 8.33.224.0/24 174 COGENT-174, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, 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
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
23.252.160.0/24 Origin: 398968 GROUP-IID-01, US
23.252.160.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
23.252.161.0/24 Origin: 398968 GROUP-IID-01, US
23.252.161.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
23.252.162.0/24 Origin: 398968 GROUP-IID-01, US
23.252.162.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
23.252.163.0/24 Origin: 398968 GROUP-IID-01, US
23.252.163.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
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 /10:41 /11:101 /12:304
/13:596 /14:1214 /15:2044 /16:13554 /17:8316 /18:13913
/19:25209 /20:43164 /21:51090 /22:107665 /23:93875 /24:511619
/25:776 /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
12479 5763 6827 UNI2-AS, ES
8151 4371 10546 Uninet S.A. de C.V., MX
11492 3536 4583 CABLEONE, US
6327 3199 3390 SHAW, CA
7155 3040 3950 VIASAT-SP-BACKBONE, US
22773 3006 4042 ASN-CXA-ALL-CCI-22773-RDC, US
8551 2961 3496 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
39891 2807 3271 ALJAWWALSTC-AS, SA
30036 2255 2600 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1921 2466 Instituto Costarricense de Electricidad y Telec
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1915 2:1015 3:147 4:18 5:3697 6:102
7:5 8:1557 9:1 11:172 12:1703 13:408
14:2303 15:133 16:34 17:375 18:129 20:142
21:4 22:188 23:5341 24:2361 25:2 27:2563
29:19 31:2404 32:106 34:1 35:49 36:1720
37:3917 38:2392 39:657 40:148 41:3896 42:1034
43:2081 44:294 45:15678 46:3713 47:321 49:1640
50:1891 51:104 52:1344 54:286 55:717 56:4
57:55 58:1753 59:1134 60:947 61:2235 62:2406
63:1953 64:5396 65:2348 66:4925 67:2926 68:1183
69:4145 70:1343 71:676 72:3098 74:2613 75:1502
76:710 77:2137 78:1743 79:2749 80:1887 81:1492
82:1422 83:1183 84:1315 85:2812 86:691 87:1898
88:983 89:3100 90:478 91:7517 92:1873 93:2562
94:3234 95:3599 96:1303 97:343 98:985 99:894
100:75 101:1052 102:1829 103:27727 104:4104 105:433
106:845 107:2404 108:754 109:4010 110:2064 111:3143
112:1964 113:1513 114:1549 115:1938 116:1892 117:2480
118:2308 119:1854 120:1617 121:1041 122:2546 123:2134
124:1601 125:2053 128:1387 129:1114 130:903 131:2068
132:724 133:365 134:1928 135:289 136:832 137:864
138:2445 139:1204 140:852 141:1329 142:1237 143:1415
144:1266 145:330 146:1718 147:1480 148:2224 149:1584
150:851 151:1068 152:1658 153:445 154:3553 155:1359
156:1870 157:1203 158:991 159:2011 160:2362 161:1275
162:3415 163:1182 164:1660 165:1510 166:621 167:1675
168:3657 169:682 170:4307 171:811 172:2896 173:3048
174:1003 175:1121 176:3433 177:4509 178:3005 179:1958
180:2267 181:2633 182:3177 183:1918 184:2411 185:19108
186:4255 187:3476 188:3497 189:3089 190:8771 191:1324
192:11016 193:8459 194:6894 195:4969 196:2916 197:2353
198:5998 199:5988 200:7424 201:5680 202:10495 203:9983
204:4499 205:3401 206:3847 207:3366 208:4009 209:4593
210:4217 211:2412 212:3889 213:3367 214:1160 215:64
216:6399 217:2607 218:1218 219:621 220:1969 221:986
222:849 223:2139
End of report
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