This is an automated weekly mailing describing the state of the Global IPv4 Research & Education Routing Table received by NSRC's collector from Internet2's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . Global R&E Routing Table Report 23:00 GMT Sat 20 Nov, 2021 BGP Table (Global) as seen at London. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/London/ Analysis Summary ---------------- BGP routing table entries examined: 873102 Prefixes after maximum aggregation (per Origin AS): 332094 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 420990 Total ASes present in the Internet Routing Table: 72225 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 61984 Origin ASes announcing only one prefix: 25615 Transit ASes present in the Internet Routing Table: 10241 Transit-only ASes present in the Internet Routing Table: 365 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 54 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 857 Number of instances of unregistered ASNs: 863 Number of 32-bit ASNs allocated by the RIRs: 37875 Number of 32-bit ASNs visible in the Routing Table: 31415 Prefixes from 32-bit ASNs in the Routing Table: 144448 Number of bogon 32-bit ASNs visible in the Routing Table: 37 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 460 Number of addresses announced to Internet: 3072372736 Equivalent to 183 /8s, 32 /16s and 176 /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: 297209 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 224992 Total APNIC prefixes after maximum aggregation: 64181 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 220001 Unique aggregates announced from the APNIC address blocks: 92845 APNIC Region origin ASes present in the Internet Routing Table: 12043 APNIC Prefixes per ASN: 18.27 APNIC Region origin ASes announcing only one prefix: 3431 APNIC Region transit ASes present in the Internet Routing Table: 1674 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7284 Number of APNIC addresses announced to Internet: 773681920 Equivalent to 46 /8s, 29 /16s and 115 /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: 255226 Total ARIN prefixes after maximum aggregation: 117787 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 255295 Unique aggregates announced from the ARIN address blocks: 122147 ARIN Region origin ASes present in the Internet Routing Table: 18905 ARIN Prefixes per ASN: 13.50 ARIN Region origin ASes announcing only one prefix: 6864 ARIN Region transit ASes present in the Internet Routing Table: 1933 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4216 Number of ARIN addresses announced to Internet: 1301602048 Equivalent to 77 /8s, 148 /16s and 223 /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: 251578 Total RIPE prefixes after maximum aggregation: 117194 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 247750 Unique aggregates announced from the RIPE address blocks: 146722 RIPE Region origin ASes present in the Internet Routing Table: 28158 RIPE Prefixes per ASN: 8.80 RIPE Region origin ASes announcing only one prefix: 12152 RIPE Region transit ASes present in the Internet Routing Table: 3993 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10549 Number of RIPE addresses announced to Internet: 712323840 Equivalent to 42 /8s, 117 /16s and 51 /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: 113303 Total LACNIC prefixes after maximum aggregation: 26994 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 114184 Unique aggregates announced from the LACNIC address blocks: 47555 LACNIC Region origin ASes present in the Internet Routing Table: 10798 LACNIC Prefixes per ASN: 10.57 LACNIC Region origin ASes announcing only one prefix: 2617 LACNIC Region transit ASes present in the Internet Routing Table: 2135 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 54 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8467 Number of LACNIC addresses announced to Internet: 176328192 Equivalent to 10 /8s, 130 /16s and 142 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 27146 Total AfriNIC prefixes after maximum aggregation: 5274 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 35412 Unique aggregates announced from the AfriNIC address blocks: 11315 AfriNIC Region origin ASes present in the Internet Routing Table: 1573 AfriNIC Prefixes per ASN: 22.51 AfriNIC Region origin ASes announcing only one prefix: 551 AfriNIC Region transit ASes present in the Internet Routing Table: 311 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 899 Number of AfriNIC addresses announced to Internet: 108168960 Equivalent to 6 /8s, 114 /16s and 135 /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 8707 8999 54 CHINAMOBILE-CN China Mobile Communicati 7545 5858 787 681 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3594 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3499 1023 57 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3212 1896 54 VNPT-AS-VN VNPT Corp, VN 4766 2252 11374 574 KIXS-AS-KR Korea Telecom, KR 9498 2175 475 236 BBIL-AP BHARTI Airtel Ltd., IN 45090 2135 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2118 429 201 TATACOMM-AS TATA Communications formerl 24560 1986 835 372 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 5972 10007 2551 AMAZON-02, US 11492 4605 305 827 CABLEONE, US 22773 4052 3071 384 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3681 1896 2556 AKAMAI-AS, US 6327 3388 1318 64 SHAW, CA 749 2890 50784 2146 DNIC-AS-00749, US 30036 2596 373 162 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2523 5027 439 CENTURYLINK-US-LEGACY-QWEST, US 7018 2250 24164 1437 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 47331 7877 1056 3443 TTNET, TR 12479 6879 1711 149 UNI2-AS, ES 20940 3921 3361 202 AKAMAI-ASN1, NL 8551 3378 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2905 2279 897 ROSTELECOM-AS, RU 9009 2514 258 1323 M247, GB 34984 2201 354 600 TELLCOM-AS, TR 58224 1712 910 623 TCI, IR 61317 1647 215 929 ASDETUK www.heficed.com, GB Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10611 3450 580 Uninet S.A. de C.V., MX 10620 3251 491 828 Telmex Colombia S.A., CO 11830 2469 369 62 Instituto Costarricense de Electricidad 13999 1644 287 456 Mega Cable, S.A. de C.V., MX 6503 1515 358 471 Axtel, S.A.B. de C.V., MX 28573 1364 2314 251 CLARO S.A., BR 3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1135 2351 138 TIM SA, BR 6147 1098 369 21 Telefonica del Peru S.A.A., PE 11664 973 188 444 Techtel LMDS Comunicaciones Interactiva Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1575 393 21 LINKdotNET-AS, EG 24835 1553 507 33 RAYA-AS, EG 36992 1285 1430 270 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 36935 703 523 44 Vodafone-, EG 29571 669 68 11 ORANGE-COTE-IVOIRE, CI 6713 612 1863 34 IAM-AS, MA 15399 517 50 31 WANANCHI-, KE 37342 465 32 1 MOVITEL, MZ 23889 425 232 16 MauritiusTelecom, MU Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10611 3450 580 Uninet S.A. de C.V., MX 9808 8707 8999 54 CHINAMOBILE-CN China Mobile Communicati 47331 7877 1056 3443 TTNET, TR 12479 6879 1711 149 UNI2-AS, ES 16509 5972 10007 2551 AMAZON-02, US 7545 5858 787 681 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4605 305 827 CABLEONE, US 22773 4052 3071 384 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 20940 3921 3361 202 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8707 8653 CHINAMOBILE-CN China Mobile Communications Grou 12479 6879 6730 UNI2-AS, ES 7545 5858 5177 TPG-INTERNET-AP TPG Telecom Limited, AU 47331 7877 4434 TTNET, TR 7155 3950 3920 VIASAT-SP-BACKBONE, US 11492 4605 3778 CABLEONE, US 20940 3921 3719 AKAMAI-ASN1, NL 22773 4052 3668 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3594 3575 VIETEL-AS-AP Viettel Group, VN 7713 3499 3442 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID Complete listing at https://bgp.nsrc.org/REN/London/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 3356 LEVEL3, 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 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/London/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: 174 COGENT-174, US 23.252.161.0/24 Origin: 398968 GROUP-IID-01, US 23.252.161.0/24 Transit: 174 COGENT-174, US 23.252.162.0/24 Origin: 398968 GROUP-IID-01, US 23.252.162.0/24 Transit: 174 COGENT-174, US 23.252.163.0/24 Origin: 398968 GROUP-IID-01, US 23.252.163.0/24 Transit: 174 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/London/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 /11:99 /12:305 /13:595 /14:1209 /15:2081 /16:13558 /17:8219 /18:13794 /19:24963 /20:41871 /21:50982 /22:107392 /23:94334 /24:513623 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:2 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 47331 7078 7877 TTNET, TR 12479 5833 6879 UNI2-AS, ES 8151 4414 10611 Uninet S.A. de C.V., MX 11492 3558 4605 CABLEONE, US 6327 3197 3388 SHAW, CA 7155 3040 3950 VIASAT-SP-BACKBONE, US 22773 3006 4052 ASN-CXA-ALL-CCI-22773-RDC, US 8551 2841 3378 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 39891 2807 3271 ALJAWWALSTC-AS, SA 30036 2252 2596 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/London/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1902 2:1035 3:144 4:18 5:3692 6:100 7:5 8:1504 11:172 12:1712 13:415 14:2260 15:126 16:32 17:374 18:130 20:143 21:4 22:188 23:5296 24:2364 25:4 27:2552 29:19 31:2383 32:103 34:1 35:48 36:1701 37:3914 38:2366 39:656 40:150 41:3868 42:1045 43:2075 44:294 45:15718 46:3775 47:323 49:1659 50:1876 51:103 52:1344 54:286 55:653 56:4 57:57 58:1629 59:1036 60:939 61:2236 62:2411 63:1945 64:5399 65:2346 66:4941 67:2895 68:1173 69:4128 70:1346 71:674 72:3072 74:2614 75:1501 76:710 77:2212 78:3797 79:2696 80:1872 81:1655 82:1406 83:1171 84:1287 85:3571 86:698 87:1884 88:2603 89:3181 90:495 91:7487 92:1902 93:2570 94:3222 95:4503 96:1291 97:347 98:978 99:912 100:76 101:1298 102:1797 103:27461 104:4106 105:436 106:838 107:2389 108:746 109:3925 110:1947 111:3108 112:1954 113:1436 114:1528 115:1972 116:1867 117:2436 118:2234 119:1878 120:1588 121:997 122:2505 123:2118 124:1544 125:1891 128:1376 129:1104 130:906 131:2067 132:771 133:366 134:1900 135:283 136:777 137:860 138:2446 139:1218 140:833 141:1316 142:1216 143:1353 144:1264 145:330 146:1637 147:1456 148:2262 149:1581 150:849 151:1080 152:1656 153:441 154:3349 155:1359 156:1832 157:1196 158:989 159:2015 160:2234 161:1274 162:3405 163:1162 164:1663 165:1512 166:593 167:1698 168:3613 169:675 170:4276 171:806 172:2837 173:3034 174:1003 175:1144 176:3423 177:4495 178:3020 179:1940 180:2307 181:2603 182:3114 183:1915 184:2412 185:19050 186:4243 187:3512 188:3629 189:3079 190:8827 191:1331 192:10988 193:8432 194:6890 195:4921 196:2890 197:2323 198:5975 199:5985 200:7410 201:5669 202:10186 203:10052 204:4480 205:3383 206:3727 207:3341 208:4016 209:4593 210:4005 211:2332 212:3851 213:3385 214:1160 215:64 216:6386 217:2621 218:1182 219:458 220:1921 221:985 222:678 223:2014 End of report