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 20 Nov, 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: 879380 Prefixes after maximum aggregation (per Origin AS): 332761 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 421022 Total ASes present in the Internet Routing Table: 72388 Prefixes per ASN: 12.15 Origin-only ASes present in the Internet Routing Table: 62165 Origin ASes announcing only one prefix: 25636 Transit ASes present in the Internet Routing Table: 10223 Transit-only ASes present in the Internet Routing Table: 363 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: 1158 Number of instances of unregistered ASNs: 1162 Number of 32-bit ASNs allocated by the RIRs: 37875 Number of 32-bit ASNs visible in the Routing Table: 31449 Prefixes from 32-bit ASNs in the Routing Table: 144979 Number of bogon 32-bit ASNs visible in the Routing Table: 47 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 465 Number of addresses announced to Internet: 3072828416 Equivalent to 183 /8s, 39 /16s and 164 /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: 297337 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 230594 Total APNIC prefixes after maximum aggregation: 64428 APNIC Deaggregation factor: 3.58 Prefixes being announced from the APNIC address blocks: 225873 Unique aggregates announced from the APNIC address blocks: 92736 APNIC Region origin ASes present in the Internet Routing Table: 12108 APNIC Prefixes per ASN: 18.65 APNIC Region origin ASes announcing only one prefix: 3446 APNIC Region transit ASes present in the Internet Routing Table: 1698 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: 7307 Number of APNIC addresses announced to Internet: 773933056 Equivalent to 46 /8s, 33 /16s and 72 /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: 255835 Total ARIN prefixes after maximum aggregation: 117953 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 255906 Unique aggregates announced from the ARIN address blocks: 122222 ARIN Region origin ASes present in the Internet Routing Table: 18945 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 6872 ARIN Region transit ASes present in the Internet Routing Table: 1939 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: 4223 Number of ARIN addresses announced to Internet: 1301608192 Equivalent to 77 /8s, 148 /16s and 247 /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: 251475 Total RIPE prefixes after maximum aggregation: 117432 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 247675 Unique aggregates announced from the RIPE address blocks: 146774 RIPE Region origin ASes present in the Internet Routing Table: 28160 RIPE Prefixes per ASN: 8.80 RIPE Region origin ASes announcing only one prefix: 12146 RIPE Region transit ASes present in the Internet Routing Table: 3930 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 39 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10551 Number of RIPE addresses announced to Internet: 712383232 Equivalent to 42 /8s, 118 /16s and 27 /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: 113306 Total LACNIC prefixes after maximum aggregation: 26909 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 114181 Unique aggregates announced from the LACNIC address blocks: 47548 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: 2622 LACNIC Region transit ASes present in the Internet Routing Table: 2145 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: 8468 Number of LACNIC addresses announced to Internet: 176327680 Equivalent to 10 /8s, 130 /16s and 140 /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: 27012 Total AfriNIC prefixes after maximum aggregation: 5274 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 35279 Unique aggregates announced from the AfriNIC address blocks: 11331 AfriNIC Region origin ASes present in the Internet Routing Table: 1572 AfriNIC Prefixes per ASN: 22.44 AfriNIC Region origin ASes announcing only one prefix: 550 AfriNIC Region transit ASes present in the Internet Routing Table: 318 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 29 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 900 Number of AfriNIC addresses announced to Internet: 108306432 Equivalent to 6 /8s, 116 /16s and 160 /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 8995 48 CHINAMOBILE-CN China Mobile Communicati 7545 5855 787 678 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 3835 4192 73 ERX-CERNET-BKB China Education and Rese 7552 3594 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3499 1023 57 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3208 1896 54 VNPT-AS-VN VNPT Corp, VN 4766 2253 11374 575 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 2120 429 201 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 5975 10008 2560 AMAZON-02, US 11492 4605 305 827 CABLEONE, US 22773 4051 3071 383 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3685 1896 2557 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 2521 5027 437 CENTURYLINK-US-LEGACY-QWEST, US 7018 2250 24164 1437 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 7877 1056 3443 TTNET, TR 12479 6879 1711 149 UNI2-AS, ES 20940 3917 3198 564 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 2516 258 1326 M247, GB 34984 2201 354 600 TELLCOM-AS, TR 58224 1750 916 583 TCI, IR 61317 1640 214 925 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 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 1514 358 470 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/USP/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 429 232 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 10611 3450 580 Uninet S.A. de C.V., MX 9808 8707 8995 48 CHINAMOBILE-CN China Mobile Communicati 47331 7877 1056 3443 TTNET, TR 12479 6879 1711 149 UNI2-AS, ES 16509 5975 10008 2560 AMAZON-02, US 7545 5855 787 678 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4605 305 827 CABLEONE, US 22773 4051 3071 383 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 20940 3917 3198 564 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 8707 8659 CHINAMOBILE-CN China Mobile Communications Grou 12479 6879 6730 UNI2-AS, ES 7545 5855 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 4538 3835 3762 ERX-CERNET-BKB China Education and Research Net 22773 4051 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/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: 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/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 /14:1210 /15:2079 /16:13576 /17:8253 /18:13902 /19:25256 /20:43007 /21:51648 /22:107866 /23:95074 /24:516437 /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 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 3005 4051 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/USP/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1905 2:1036 3:144 4:18 5:3696 6:100 7:5 8:1518 9:1 11:172 12:1711 13:415 14:2251 15:127 16:32 17:374 18:130 20:143 21:4 22:188 23:5301 24:2364 25:4 27:2628 29:19 31:2376 32:104 34:1 35:48 36:1682 37:3917 38:2369 39:656 40:150 41:3868 42:1049 43:2108 44:295 45:15727 46:3772 47:324 49:1658 50:1877 51:103 52:1342 54:287 55:653 56:4 57:59 58:1772 59:1090 60:939 61:2233 62:2413 63:1946 64:5410 65:2343 66:4942 67:2919 68:1173 69:4130 70:1346 71:681 72:3090 74:2621 75:1501 76:710 77:2212 78:3798 79:2696 80:1871 81:1658 82:1406 83:1174 84:1301 85:3571 86:699 87:1894 88:2604 89:3181 90:495 91:7487 92:1903 93:2575 94:3222 95:4504 96:1291 97:347 98:978 99:912 100:76 101:1065 102:1796 103:27582 104:4108 105:436 106:839 107:2389 108:750 109:3930 110:1961 111:3104 112:1954 113:1471 114:1546 115:2114 116:1867 117:2443 118:2246 119:1890 120:1584 121:1066 122:2521 123:2175 124:1546 125:1953 128:1412 129:1111 130:914 131:2068 132:777 133:366 134:1912 135:283 136:775 137:1006 138:2464 139:1232 140:839 141:1316 142:1225 143:1350 144:1263 145:330 146:1648 147:1467 148:2261 149:1591 150:860 151:1081 152:1653 153:517 154:3357 155:1359 156:1830 157:1194 158:988 159:2020 160:2233 161:1277 162:3410 163:1174 164:1655 165:1516 166:593 167:1704 168:3640 169:684 170:4282 171:806 172:2840 173:3039 174:1003 175:1145 176:3433 177:4480 178:3020 179:1940 180:2340 181:2619 182:3123 183:1917 184:2412 185:19056 186:4263 187:3513 188:3628 189:3081 190:8819 191:1332 192:11005 193:8437 194:6890 195:4928 196:2893 197:2332 198:6014 199:6000 200:7415 201:5671 202:10498 203:10254 204:4489 205:3389 206:3797 207:3391 208:4019 209:4607 210:4235 211:2438 212:3862 213:3385 214:1159 215:64 216:6395 217:2626 218:1197 219:575 220:2011 221:988 222:846 223:2016 End of report