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[routing-wg] Weekly Global IPv4 Routing Table Report
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Routing Table Analysis Role Account
cscora at apnic.net
Fri Dec 24 19:02:58 CET 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 25 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: 885163 Prefixes after maximum aggregation (per Origin AS): 332925 Deaggregation factor: 2.66 Unique aggregates announced (without unneeded subnets): 424656 Number of IPv4 prefixes with ROAs (including AS0): 252939 Total ASes present in the Internet Routing Table: 72523 Prefixes per ASN: 12.21 Origin-only ASes present in the Internet Routing Table: 62238 Origin ASes announcing only one prefix: 25678 Transit ASes present in the Internet Routing Table: 10285 Transit-only ASes present in the Internet Routing Table: 371 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: 920 Number of instances of unregistered ASNs: 922 Number of 32-bit ASNs allocated by the RIRs: 38178 Number of 32-bit ASNs visible in the Routing Table: 31711 Prefixes from 32-bit ASNs in the Routing Table: 147279 Number of bogon 32-bit ASNs visible in the Routing Table: 19 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 724 Number of addresses announced to Internet: 3073270528 Equivalent to 183 /8s, 46 /16s and 99 /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: 299290 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233109 Total APNIC prefixes after maximum aggregation: 65222 APNIC Deaggregation factor: 3.57 Prefixes being announced from the APNIC address blocks: 227930 Unique aggregates announced from the APNIC address blocks: 93654 APNIC Region origin ASes present in the Internet Routing Table: 12197 APNIC Prefixes per ASN: 18.69 APNIC Region origin ASes announcing only one prefix: 3466 APNIC Region transit ASes present in the Internet Routing Table: 1712 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7383 Number of APNIC addresses announced to Internet: 773501824 Equivalent to 46 /8s, 26 /16s and 179 /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: 257192 Total ARIN prefixes after maximum aggregation: 118517 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 256825 Unique aggregates announced from the ARIN address blocks: 122511 ARIN Region origin ASes present in the Internet Routing Table: 18930 ARIN Prefixes per ASN: 13.57 ARIN Region origin ASes announcing only one prefix: 6857 ARIN Region transit ASes present in the Internet Routing Table: 1951 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4263 Number of ARIN addresses announced to Internet: 1300922624 Equivalent to 77 /8s, 138 /16s and 129 /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: 252861 Total RIPE prefixes after maximum aggregation: 115963 RIPE Deaggregation factor: 2.18 Prefixes being announced from the RIPE address blocks: 249288 Unique aggregates announced from the RIPE address blocks: 148383 RIPE Region origin ASes present in the Internet Routing Table: 28169 RIPE Prefixes per ASN: 8.85 RIPE Region origin ASes announcing only one prefix: 12148 RIPE Region transit ASes present in the Internet Routing Table: 3942 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10587 Number of RIPE addresses announced to Internet: 713691520 Equivalent to 42 /8s, 138 /16s and 17 /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: 113477 Total LACNIC prefixes after maximum aggregation: 27242 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 114273 Unique aggregates announced from the LACNIC address blocks: 47761 LACNIC Region origin ASes present in the Internet Routing Table: 10881 LACNIC Prefixes per ASN: 10.50 LACNIC Region origin ASes announcing only one prefix: 2655 LACNIC Region transit ASes present in the Internet Routing Table: 2195 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: 8560 Number of LACNIC addresses announced to Internet: 176297728 Equivalent to 10 /8s, 130 /16s and 23 /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: 27604 Total AfriNIC prefixes after maximum aggregation: 5293 AfriNIC Deaggregation factor: 5.22 Prefixes being announced from the AfriNIC address blocks: 36123 Unique aggregates announced from the AfriNIC address blocks: 11694 AfriNIC Region origin ASes present in the Internet Routing Table: 1586 AfriNIC Prefixes per ASN: 22.78 AfriNIC Region origin ASes announcing only one prefix: 552 AfriNIC Region transit ASes present in the Internet Routing Table: 312 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 28 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 918 Number of AfriNIC addresses announced to Internet: 108400128 Equivalent to 6 /8s, 118 /16s and 14 /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 8744 9000 57 CHINAMOBILE-CN China Mobile Communicati 7545 5837 787 681 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4692 4192 74 ERX-CERNET-BKB China Education and Rese 7552 3602 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3481 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3245 1880 58 VNPT-AS-VN VNPT Corp, VN 4766 2475 11119 576 KIXS-AS-KR Korea Telecom, KR 9498 2211 475 235 BBIL-AP BHARTI Airtel Ltd., IN 45090 2136 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2122 429 204 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 6058 10131 2597 AMAZON-02, US 11492 4580 303 821 CABLEONE, US 22773 4031 3036 388 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3657 1885 2555 AKAMAI-AS, US 6327 3391 1319 65 SHAW, CA 749 2890 50784 2146 DNIC-AS-00749, US 30036 2603 374 146 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2523 5043 432 CENTURYLINK-US-LEGACY-QWEST, US 20115 2241 3033 501 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 6840 1733 150 UNI2-AS, ES 9121 6670 1692 17 TTNET, TR 20940 3858 3348 210 AKAMAI-ASN1, NL 8551 3554 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2949 2284 902 ROSTELECOM-AS, RU 9009 2552 263 1360 M247, GB 34984 2205 355 600 TELLCOM-AS, TR 47331 1977 319 1509 TTNET, TR 58224 1772 922 577 TCI, IR 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 10571 3451 583 Uninet S.A. de C.V., MX 10620 3263 491 836 Telmex Colombia S.A., CO 11830 2466 369 62 Instituto Costarricense de Electricidad 13999 1638 283 462 Mega Cable, S.A. de C.V., MX 6503 1440 355 522 Axtel, S.A.B. de C.V., MX 28573 1401 2324 256 CLARO S.A., BR 3816 1244 657 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1140 2350 138 TIM SA, BR 6147 1090 369 21 Telefonica del Peru S.A.A., PE 11664 994 191 443 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 1628 393 21 LINKdotNET-AS, EG 24835 1548 499 32 RAYA-AS, EG 36992 1294 1462 268 ETISALAT-MISR, EG 36903 1195 543 114 MT-MPLS, MA 29571 852 68 11 ORANGE-COTE-IVOIRE, CI 36935 685 521 39 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 517 50 33 WANANCHI-, KE 37342 470 32 1 MOVITEL, MZ 23889 429 232 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 10571 3451 583 Uninet S.A. de C.V., MX 9808 8744 9000 57 CHINAMOBILE-CN China Mobile Communicati 12479 6840 1733 150 UNI2-AS, ES 9121 6670 1692 17 TTNET, TR 16509 6058 10131 2597 AMAZON-02, US 7545 5837 787 681 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4692 4192 74 ERX-CERNET-BKB China Education and Rese 11492 4580 303 821 CABLEONE, US 22773 4031 3036 388 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, 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 8744 8687 CHINAMOBILE-CN China Mobile Communications Grou 12479 6840 6690 UNI2-AS, ES 9121 6670 6653 TTNET, TR 7545 5837 5156 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4692 4618 ERX-CERNET-BKB China Education and Research Net 7155 3950 3920 VIASAT-SP-BACKBONE, US 11492 4580 3759 CABLEONE, US 20940 3858 3648 AKAMAI-ASN1, NL 22773 4031 3643 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3602 3582 VIETEL-AS-AP Viettel Group, VN 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 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 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 /13:592 /14:1213 /15:2040 /16:13563 /17:8327 /18:13920 /19:25271 /20:43287 /21:52000 /22:108460 /23:95438 /24:519801 /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 9121 5859 6670 TTNET, TR 12479 5783 6840 UNI2-AS, ES 8151 4396 10571 Uninet S.A. de C.V., MX 11492 3533 4580 CABLEONE, US 6327 3199 3391 SHAW, CA 7155 3040 3950 VIASAT-SP-BACKBONE, US 8551 3019 3554 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 3006 4031 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2807 3271 ALJAWWALSTC-AS, SA 30036 2258 2603 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1902 2:989 3:148 4:18 5:3687 6:102 7:5 8:1563 9:1 11:172 12:1699 13:409 14:2314 15:135 16:35 17:373 18:130 20:143 21:4 22:188 23:5364 24:2355 25:4 27:2576 29:19 31:2434 32:106 34:1 35:49 36:1728 37:3909 38:2416 39:710 40:148 41:3915 42:1052 43:2134 44:295 45:16056 46:3865 47:300 49:1652 50:1906 51:106 52:1352 54:289 55:731 56:4 57:59 58:1752 59:1138 60:947 61:2244 62:2419 63:1943 64:5404 65:2331 66:4927 67:2921 68:1185 69:4165 70:1340 71:676 72:3064 74:2618 75:1505 76:711 77:2131 78:3820 79:2773 80:1910 81:1647 82:1422 83:1194 84:1319 85:3572 86:692 87:1898 88:2621 89:3125 90:493 91:7520 92:1889 93:2572 94:3273 95:4516 96:1298 97:344 98:989 99:878 100:75 101:1049 102:1885 103:28048 104:4089 105:453 106:852 107:2413 108:750 109:4043 110:2057 111:3168 112:1938 113:1491 114:1558 115:1934 116:1890 117:2504 118:2308 119:1878 120:1625 121:1007 122:2527 123:2125 124:1618 125:2078 128:1388 129:1145 130:905 131:2071 132:753 133:365 134:1930 135:283 136:845 137:861 138:2441 139:1219 140:863 141:1320 142:1235 143:1412 144:1228 145:333 146:1748 147:1453 148:2213 149:1608 150:866 151:1078 152:1846 153:443 154:3577 155:1361 156:1874 157:1214 158:993 159:1999 160:2376 161:1281 162:3430 163:1189 164:1677 165:1543 166:619 167:1675 168:3657 169:689 170:4322 171:824 172:2919 173:3043 174:1005 175:1123 176:3433 177:4506 178:3022 179:1983 180:2340 181:2704 182:3198 183:1921 184:2416 185:19163 186:4227 187:3499 188:3666 189:3121 190:8843 191:1314 192:10990 193:8495 194:6943 195:4984 196:2907 197:2384 198:5997 199:5971 200:7437 201:5696 202:10503 203:10085 204:4506 205:3408 206:3847 207:3352 208:3996 209:4591 210:4247 211:2443 212:3915 213:3358 214:1152 215:64 216:6400 217:2636 218:1212 219:608 220:1968 221:1018 222:843 223:2146 End of report
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