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 21:35 GMT Sat 04 Dec, 2021 BGP Table (Global) as seen at USP. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/USP/ Analysis Summary ---------------- BGP routing table entries examined: 881700 Prefixes after maximum aggregation (per Origin AS): 333457 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 421781 Total ASes present in the Internet Routing Table: 72420 Prefixes per ASN: 12.17 Origin-only ASes present in the Internet Routing Table: 62189 Origin ASes announcing only one prefix: 25617 Transit ASes present in the Internet Routing Table: 10231 Transit-only ASes present in the Internet Routing Table: 374 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: 1166 Number of instances of unregistered ASNs: 1168 Number of 32-bit ASNs allocated by the RIRs: 37991 Number of 32-bit ASNs visible in the Routing Table: 31533 Prefixes from 32-bit ASNs in the Routing Table: 146334 Number of bogon 32-bit ASNs visible in the Routing Table: 48 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 850 Number of addresses announced to Internet: 3073443328 Equivalent to 183 /8s, 49 /16s and 6 /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: 297341 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 232174 Total APNIC prefixes after maximum aggregation: 64555 APNIC Deaggregation factor: 3.60 Prefixes being announced from the APNIC address blocks: 227604 Unique aggregates announced from the APNIC address blocks: 92952 APNIC Region origin ASes present in the Internet Routing Table: 12111 APNIC Prefixes per ASN: 18.79 APNIC Region origin ASes announcing only one prefix: 3450 APNIC Region transit ASes present in the Internet Routing Table: 1703 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: 7314 Number of APNIC addresses announced to Internet: 773753856 Equivalent to 46 /8s, 30 /16s and 140 /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: 256242 Total ARIN prefixes after maximum aggregation: 118124 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 255847 Unique aggregates announced from the ARIN address blocks: 122057 ARIN Region origin ASes present in the Internet Routing Table: 18938 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 6859 ARIN Region transit ASes present in the Internet Routing Table: 1934 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 37 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4244 Number of ARIN addresses announced to Internet: 1300800000 Equivalent to 77 /8s, 136 /16s and 162 /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: 251449 Total RIPE prefixes after maximum aggregation: 117647 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 247624 Unique aggregates announced from the RIPE address blocks: 147104 RIPE Region origin ASes present in the Internet Routing Table: 28162 RIPE Prefixes per ASN: 8.79 RIPE Region origin ASes announcing only one prefix: 12136 RIPE Region transit ASes present in the Internet Routing Table: 3923 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10565 Number of RIPE addresses announced to Internet: 713612800 Equivalent to 42 /8s, 136 /16s and 222 /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: 113396 Total LACNIC prefixes after maximum aggregation: 27076 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 114243 Unique aggregates announced from the LACNIC address blocks: 47603 LACNIC Region origin ASes present in the Internet Routing Table: 10819 LACNIC Prefixes per ASN: 10.56 LACNIC Region origin ASes announcing only one prefix: 2623 LACNIC Region transit ASes present in the Internet Routing Table: 2155 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8498 Number of LACNIC addresses announced to Internet: 176384256 Equivalent to 10 /8s, 131 /16s and 105 /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: 27273 Total AfriNIC prefixes after maximum aggregation: 5294 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 35531 Unique aggregates announced from the AfriNIC address blocks: 11289 AfriNIC Region origin ASes present in the Internet Routing Table: 1583 AfriNIC Prefixes per ASN: 22.45 AfriNIC Region origin ASes announcing only one prefix: 549 AfriNIC Region transit ASes present in the Internet Routing Table: 322 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 32 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 912 Number of AfriNIC addresses announced to Internet: 108348928 Equivalent to 6 /8s, 117 /16s and 70 /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 8740 8995 48 CHINAMOBILE-CN China Mobile Communicati 7545 5852 787 675 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4628 4192 73 ERX-CERNET-BKB China Education and Rese 7552 3588 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3484 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3238 1896 54 VNPT-AS-VN VNPT Corp, VN 4766 2250 11374 575 KIXS-AS-KR Korea Telecom, KR 9498 2190 475 238 BBIL-AP BHARTI Airtel Ltd., IN 45090 2136 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2121 429 202 TATACOMM-AS TATA Communications formerl 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 6018 10030 2573 AMAZON-02, US 11492 4594 304 819 CABLEONE, US 22773 4021 3068 374 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3674 1892 2554 AKAMAI-AS, US 6327 3389 1318 63 SHAW, CA 749 2890 50784 2146 DNIC-AS-00749, US 30036 2605 374 127 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2523 5043 434 CENTURYLINK-US-LEGACY-QWEST, US 20115 2236 3032 502 CHARTER-20115, 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 7934 1061 3416 TTNET, TR 12479 6858 1733 150 UNI2-AS, ES 20940 3873 3197 547 AKAMAI-ASN1, NL 8551 3455 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2908 2279 898 ROSTELECOM-AS, RU 9009 2572 264 1351 M247, GB 34984 2203 355 597 TELLCOM-AS, TR 58224 1755 917 577 TCI, IR 61317 1650 214 929 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 10496 3450 583 Uninet S.A. de C.V., MX 10620 3253 491 829 Telmex Colombia S.A., CO 11830 2469 369 62 Instituto Costarricense de Electricidad 13999 1623 286 456 Mega Cable, S.A. de C.V., MX 6503 1435 355 522 Axtel, S.A.B. de C.V., MX 28573 1363 2317 261 CLARO S.A., BR 3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1133 2350 136 TIM SA, BR 6147 1089 370 21 Telefonica del Peru S.A.A., PE 11664 981 189 442 Techtel LMDS Comunicaciones Interactiva 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 1618 393 21 LINKdotNET-AS, EG 24835 1549 499 32 RAYA-AS, EG 36992 1287 1430 268 ETISALAT-MISR, EG 36903 1195 543 114 MT-MPLS, MA 29571 825 68 11 ORANGE-COTE-IVOIRE, CI 36935 704 523 44 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 517 50 31 WANANCHI-, KE 37342 470 32 1 MOVITEL, MZ 23889 428 232 16 MauritiusTelecom, MU 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 10496 3450 583 Uninet S.A. de C.V., MX 9808 8740 8995 48 CHINAMOBILE-CN China Mobile Communicati 47331 7934 1061 3416 TTNET, TR 12479 6858 1733 150 UNI2-AS, ES 16509 6018 10030 2573 AMAZON-02, US 7545 5852 787 675 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4628 4192 73 ERX-CERNET-BKB China Education and Rese 11492 4594 304 819 CABLEONE, US 22773 4021 3068 374 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 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 8740 8692 CHINAMOBILE-CN China Mobile Communications Grou 12479 6858 6708 UNI2-AS, ES 7545 5852 5177 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4628 4555 ERX-CERNET-BKB China Education and Research Net 47331 7934 4518 TTNET, TR 7155 3950 3920 VIASAT-SP-BACKBONE, US 11492 4594 3775 CABLEONE, US 22773 4021 3647 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3588 3569 VIETEL-AS-AP Viettel Group, VN 16509 6018 3445 AMAZON-02, US 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 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/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 23.141.0.0/24 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://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 /12:306 /13:596 /14:1210 /15:2078 /16:13553 /17:8297 /18:13927 /19:25251 /20:43242 /21:51938 /22:108253 /23:95171 /24:517708 /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 7135 7934 TTNET, TR 12479 5789 6858 UNI2-AS, ES 8151 4327 10496 Uninet S.A. de C.V., MX 11492 3547 4594 CABLEONE, US 6327 3199 3389 SHAW, CA 7155 3040 3950 VIASAT-SP-BACKBONE, US 22773 2991 4021 ASN-CXA-ALL-CCI-22773-RDC, US 8551 2919 3455 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 39891 2807 3271 ALJAWWALSTC-AS, SA 30036 2260 2605 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/USP/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1907 2:1023 3:144 4:18 5:3709 6:100 7:5 8:1524 9:1 11:172 12:1706 13:409 14:2292 15:133 16:32 17:374 18:130 20:142 21:4 22:188 23:5327 24:2366 25:4 27:2640 29:19 31:2376 32:104 34:1 35:48 36:1725 37:3918 38:2382 39:659 40:149 41:3891 42:1038 43:2106 44:296 45:15684 46:3684 47:321 49:1627 50:1884 51:104 52:1345 54:290 55:728 56:4 57:59 58:1791 59:1116 60:940 61:2252 62:2403 63:1954 64:5409 65:2349 66:4917 67:2933 68:1186 69:4145 70:1344 71:683 72:3095 74:2615 75:1501 76:711 77:2138 78:3818 79:2708 80:1893 81:1629 82:1411 83:1176 84:1300 85:3561 86:701 87:1898 88:2607 89:3125 90:451 91:7500 92:1884 93:2582 94:3223 95:4524 96:1294 97:343 98:984 99:899 100:76 101:1069 102:1837 103:27699 104:4089 105:429 106:846 107:2385 108:755 109:4006 110:2064 111:3092 112:1965 113:1476 114:1546 115:2122 116:1874 117:2475 118:2313 119:1892 120:1581 121:1074 122:2533 123:2172 124:1545 125:2062 128:1362 129:1114 130:913 131:2081 132:776 133:364 134:1918 135:287 136:798 137:1004 138:2460 139:1217 140:817 141:1316 142:1231 143:1368 144:1254 145:330 146:1711 147:1476 148:2249 149:1581 150:861 151:1066 152:1658 153:520 154:3399 155:1351 156:1848 157:1197 158:987 159:2026 160:2334 161:1274 162:3411 163:1187 164:1658 165:1523 166:616 167:1704 168:3654 169:687 170:4303 171:811 172:2881 173:3052 174:1007 175:1151 176:3428 177:4475 178:3013 179:2002 180:2340 181:2653 182:3118 183:1925 184:2413 185:19085 186:4265 187:3537 188:3496 189:3131 190:8821 191:1329 192:11019 193:8456 194:6902 195:4957 196:2909 197:2349 198:6007 199:5995 200:7414 201:5547 202:10589 203:10224 204:4504 205:3386 206:3826 207:3366 208:4012 209:4637 210:4256 211:2412 212:3904 213:3395 214:1157 215:62 216:6406 217:2610 218:1212 219:597 220:2062 221:986 222:854 223:2110 End of report