This is an automated weekly mailing describing the state of the Global Research & Education Routing Table as seen from NSRC's collector. 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 21:35 GMT Sat 16 Oct, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/USP/ Analysis Summary ---------------- BGP routing table entries examined: 871040 Prefixes after maximum aggregation (per Origin AS): 330032 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 418194 Total ASes present in the Internet Routing Table: 72122 Prefixes per ASN: 12.08 Origin-only ASes present in the Internet Routing Table: 61963 Origin ASes announcing only one prefix: 25512 Transit ASes present in the Internet Routing Table: 10159 Transit-only ASes present in the Internet Routing Table: 348 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 55 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1232 Number of instances of unregistered ASNs: 1234 Number of 32-bit ASNs allocated by the RIRs: 37518 Number of 32-bit ASNs visible in the Routing Table: 31155 Prefixes from 32-bit ASNs in the Routing Table: 142752 Number of bogon 32-bit ASNs visible in the Routing Table: 42 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 448 Number of addresses announced to Internet: 3071932416 Equivalent to 183 /8s, 25 /16s and 248 /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: 294197 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228149 Total APNIC prefixes after maximum aggregation: 63945 APNIC Deaggregation factor: 3.57 Prefixes being announced from the APNIC address blocks: 223888 Unique aggregates announced from the APNIC address blocks: 91902 APNIC Region origin ASes present in the Internet Routing Table: 12002 APNIC Prefixes per ASN: 18.65 APNIC Region origin ASes announcing only one prefix: 3408 APNIC Region transit ASes present in the Internet Routing Table: 1690 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7190 Number of APNIC addresses announced to Internet: 773461760 Equivalent to 46 /8s, 26 /16s and 23 /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, 131072-147769 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: 253977 Total ARIN prefixes after maximum aggregation: 116724 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 253891 Unique aggregates announced from the ARIN address blocks: 121393 ARIN Region origin ASes present in the Internet Routing Table: 18898 ARIN Prefixes per ASN: 13.43 ARIN Region origin ASes announcing only one prefix: 6853 ARIN Region transit ASes present in the Internet Routing Table: 1930 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 29 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4160 Number of ARIN addresses announced to Internet: 1301393152 Equivalent to 77 /8s, 145 /16s and 175 /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: 249358 Total RIPE prefixes after maximum aggregation: 116579 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 245607 Unique aggregates announced from the RIPE address blocks: 145915 RIPE Region origin ASes present in the Internet Routing Table: 28081 RIPE Prefixes per ASN: 8.75 RIPE Region origin ASes announcing only one prefix: 12089 RIPE Region transit ASes present in the Internet Routing Table: 3904 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10467 Number of RIPE addresses announced to Internet: 712031744 Equivalent to 42 /8s, 112 /16s and 190 /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: 111745 Total LACNIC prefixes after maximum aggregation: 26765 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 112630 Unique aggregates announced from the LACNIC address blocks: 47455 LACNIC Region origin ASes present in the Internet Routing Table: 10787 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2623 LACNIC Region transit ASes present in the Internet Routing Table: 2130 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8455 Number of LACNIC addresses announced to Internet: 176602368 Equivalent to 10 /8s, 134 /16s and 189 /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: 26579 Total AfriNIC prefixes after maximum aggregation: 5219 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 34575 Unique aggregates announced from the AfriNIC address blocks: 11149 AfriNIC Region origin ASes present in the Internet Routing Table: 1553 AfriNIC Prefixes per ASN: 22.26 AfriNIC Region origin ASes announcing only one prefix: 539 AfriNIC Region transit ASes present in the Internet Routing Table: 317 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 883 Number of AfriNIC addresses announced to Internet: 108129536 Equivalent to 6 /8s, 113 /16s and 237 /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 8356 8995 48 CMNET-GD Guangdong Mobile Communication 7545 5848 786 677 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 3865 4192 73 ERX-CERNET-BKB China Education and Rese 7552 3624 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3504 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3029 1896 55 VNPT-AS-VN VNPT Corp, VN 4766 2254 11374 574 KIXS-AS-KR Korea Telecom, KR 9498 2163 472 238 BBIL-AP BHARTI Airtel Ltd., IN 4755 2130 429 203 TATACOMM-AS TATA Communications formerl 45090 2121 1197 71 CNNIC-TENCENT-NET-AP Shenzhen Tencent C Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 5786 9986 2512 AMAZON-02, US 11492 4675 309 786 CABLEONE, US 22773 4094 3081 382 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3951 264 30 VIASAT-SP-BACKBONE, US 16625 3642 1883 2537 AKAMAI-AS, US 6327 3370 1318 68 SHAW, CA 30036 2573 373 248 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2531 5028 450 CENTURYLINK-US-LEGACY-QWEST, US 20115 2242 3032 504 CHARTER-20115, US 7018 2237 24163 1429 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 47331 8190 1091 3321 TTNET, TR 12479 6848 1726 143 UNI2-AS, ES 20940 3875 3198 561 AKAMAI-ASN1, NL 8551 3291 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2900 2283 896 ROSTELECOM-AS, RU 9009 2495 259 1317 M247, GB 34984 2240 358 602 TELLCOM-AS, TR 58224 1689 902 577 TCI, IR 61317 1652 241 916 ASDETUK www.heficed.com, GB Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 8879 3459 573 Uninet S.A. de C.V., MX 10620 3417 520 714 Telmex Colombia S.A., CO 11830 2498 369 62 Instituto Costarricense de Electricidad 13999 1671 330 465 Mega Cable, S.A. de C.V., MX 6503 1522 359 477 Axtel, S.A.B. de C.V., MX 28573 1449 2307 249 CLARO S.A., BR 3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1118 2351 135 TIM SA, BR 6147 1088 369 22 Telefonica del Peru S.A.A., PE 11172 957 111 70 Alestra, S. de R.L. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1603 393 21 LINKdotNET-AS, EG 24835 1509 503 32 RAYA-AS, EG 36992 1287 1418 270 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 799 68 11 ORANGE-COTE-IVOIRE, CI 36935 630 523 44 Vodafone-, EG 6713 611 1863 34 IAM-AS, MA 15399 510 50 31 WANANCHI-, KE 37342 471 32 1 MOVITEL, MZ 2018 344 319 73 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 8879 3459 573 Uninet S.A. de C.V., MX 9808 8356 8995 48 CMNET-GD Guangdong Mobile Communication 47331 8190 1091 3321 TTNET, TR 12479 6848 1726 143 UNI2-AS, ES 7545 5848 786 677 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 5786 9986 2512 AMAZON-02, US 11492 4675 309 786 CABLEONE, US 22773 4094 3081 382 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3951 264 30 VIASAT-SP-BACKBONE, US 20940 3875 3198 561 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/USP/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8356 8308 CMNET-GD Guangdong Mobile Communication Co.Ltd. 12479 6848 6705 UNI2-AS, ES 7545 5848 5171 TPG-INTERNET-AP TPG Telecom Limited, AU 47331 8190 4869 TTNET, TR 7155 3951 3921 VIASAT-SP-BACKBONE, US 11492 4675 3889 CABLEONE, US 4538 3865 3792 ERX-CERNET-BKB China Education and Research Net 22773 4094 3712 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3624 3605 VIETEL-AS-AP Viettel Group, VN 7713 3504 3448 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID Complete listing at https://bgp.nsrc.org/REN/USP/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398418 UNALLOCATED 8.2.200.0/24 2914 NTT-COMMUNICATIONS-2914, US 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 23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/USP/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 0.0.0.0/0 7575 AARNET-AS-AP Australian Academic and Research N 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/USP/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.132.208.0/24 Origin: 7850 CITYLINKFIBER, US 23.132.208.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.170.145.0/24 Origin: 399091 INTERDATALINK-INC, US 23.170.145.0/24 Transit: 32217 GPIEX, 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: 174 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/USP/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:41 /11:99 /12:305 /13:597 /14:1212 /15:2080 /16:13587 /17:8244 /18:13900 /19:25234 /20:42254 /21:51400 /22:107243 /23:93706 /24:511108 /25:0 /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 47331 7361 8190 TTNET, TR 12479 5809 6848 UNI2-AS, ES 11492 3616 4675 CABLEONE, US 8151 3270 8879 Uninet S.A. de C.V., MX 6327 3179 3370 SHAW, CA 7155 3041 3951 VIASAT-SP-BACKBONE, US 22773 3015 4094 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2807 3271 ALJAWWALSTC-AS, SA 8551 2756 3291 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2226 2573 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/USP/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1911 2:1051 3:145 4:19 5:3650 6:85 7:5 8:1522 9:1 11:172 12:1717 13:412 14:2251 15:115 16:24 17:370 18:123 20:126 21:4 22:188 23:5174 24:2432 25:2 27:2626 29:19 31:2363 32:109 34:1 35:47 36:1669 37:3865 38:2304 39:601 40:152 41:3813 42:1044 43:2076 44:294 45:15517 46:3659 47:320 48:3 49:1656 50:1837 51:100 52:1299 54:280 55:739 56:4 57:59 58:1803 59:1096 60:937 61:2174 62:2335 63:1961 64:5372 65:2358 66:4935 67:2887 68:1163 69:4100 70:1360 71:685 72:3156 74:2622 75:1495 76:695 77:2037 78:3864 79:2629 80:1854 81:1661 82:1372 83:1167 84:1293 85:3611 86:715 87:1871 88:2689 89:3047 90:508 91:7375 92:1804 93:2567 94:3129 95:4507 96:1291 97:347 98:977 99:950 100:75 101:1055 102:1740 103:27276 104:4058 105:439 106:824 107:2375 108:734 109:3873 110:1938 111:3046 112:1947 113:1295 114:1479 115:2113 116:1858 117:2431 118:2253 119:1888 120:1524 121:1056 122:2521 123:2167 124:1542 125:1928 128:1368 129:1313 130:902 131:2031 132:770 133:364 134:1860 135:317 136:789 137:995 138:2429 139:1208 140:762 141:1266 142:1197 143:1363 144:1266 145:326 146:1556 147:1433 148:2240 149:1490 150:841 151:1087 152:1659 153:506 154:3104 155:1323 156:1745 157:1183 158:1001 159:2045 160:2342 161:1245 162:3347 163:1091 164:1620 165:1484 166:583 167:1694 168:3645 169:693 170:4330 171:807 172:2764 173:2941 174:1002 175:1130 176:3346 177:4542 178:3015 179:1946 180:2333 181:2679 182:3082 183:1908 184:2418 185:18944 186:4239 187:3193 188:3440 189:2912 190:8740 191:1318 192:10708 193:8389 194:6850 195:4880 196:2891 197:2129 198:6024 199:5923 200:7342 201:5499 202:10417 203:10251 204:4513 205:3371 206:4060 207:3355 208:4001 209:4735 210:4203 211:2356 212:3774 213:3380 214:1161 215:61 216:6386 217:2628 218:1185 219:569 220:2003 221:979 222:847 223:1937 End of report