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 18 Dec, 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: 867313 Prefixes after maximum aggregation (per Origin AS): 329883 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 423885 Total ASes present in the Internet Routing Table: 72255 Prefixes per ASN: 12.00 Origin-only ASes present in the Internet Routing Table: 62043 Origin ASes announcing only one prefix: 25627 Transit ASes present in the Internet Routing Table: 10212 Transit-only ASes present in the Internet Routing Table: 367 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 54 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 878 Number of instances of unregistered ASNs: 881 Number of 32-bit ASNs allocated by the RIRs: 38118 Number of 32-bit ASNs visible in the Routing Table: 31599 Prefixes from 32-bit ASNs in the Routing Table: 146390 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 815 Number of addresses announced to Internet: 3072179712 Equivalent to 183 /8s, 29 /16s and 190 /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: 290197 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 225921 Total APNIC prefixes after maximum aggregation: 64495 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 220813 Unique aggregates announced from the APNIC address blocks: 93193 APNIC Region origin ASes present in the Internet Routing Table: 12078 APNIC Prefixes per ASN: 18.28 APNIC Region origin ASes announcing only one prefix: 3421 APNIC Region transit ASes present in the Internet Routing Table: 1680 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7330 Number of APNIC addresses announced to Internet: 772654336 Equivalent to 46 /8s, 13 /16s and 197 /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: 255723 Total ARIN prefixes after maximum aggregation: 117887 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 255195 Unique aggregates announced from the ARIN address blocks: 122317 ARIN Region origin ASes present in the Internet Routing Table: 18829 ARIN Prefixes per ASN: 13.55 ARIN Region origin ASes announcing only one prefix: 6837 ARIN Region transit ASes present in the Internet Routing Table: 1886 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4240 Number of ARIN addresses announced to Internet: 1300785408 Equivalent to 77 /8s, 136 /16s and 105 /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: 243999 Total RIPE prefixes after maximum aggregation: 114496 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 240392 Unique aggregates announced from the RIPE address blocks: 148207 RIPE Region origin ASes present in the Internet Routing Table: 28167 RIPE Prefixes per ASN: 8.53 RIPE Region origin ASes announcing only one prefix: 12166 RIPE Region transit ASes present in the Internet Routing Table: 3969 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10572 Number of RIPE addresses announced to Internet: 713730560 Equivalent to 42 /8s, 138 /16s and 170 /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: 113220 Total LACNIC prefixes after maximum aggregation: 27058 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 113996 Unique aggregates announced from the LACNIC address blocks: 47696 LACNIC Region origin ASes present in the Internet Routing Table: 10857 LACNIC Prefixes per ASN: 10.50 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2173 Average LACNIC Region AS path length visible: 5.6 Max LACNIC Region AS path length visible: 54 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8542 Number of LACNIC addresses announced to Internet: 176185600 Equivalent to 10 /8s, 128 /16s and 97 /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: 27572 Total AfriNIC prefixes after maximum aggregation: 5291 AfriNIC Deaggregation factor: 5.21 Prefixes being announced from the AfriNIC address blocks: 36102 Unique aggregates announced from the AfriNIC address blocks: 11737 AfriNIC Region origin ASes present in the Internet Routing Table: 1585 AfriNIC Prefixes per ASN: 22.78 AfriNIC Region origin ASes announcing only one prefix: 550 AfriNIC Region transit ASes present in the Internet Routing Table: 313 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 915 Number of AfriNIC addresses announced to Internet: 108268032 Equivalent to 6 /8s, 116 /16s and 10 /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 8735 8999 54 CHINAMOBILE-CN China Mobile Communicati 7545 5836 787 680 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3589 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3482 1022 55 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3250 1896 54 VNPT-AS-VN VNPT Corp, VN 4766 2237 11118 573 KIXS-AS-KR Korea Telecom, KR 9498 2217 475 237 BBIL-AP BHARTI Airtel Ltd., IN 4755 2120 429 203 TATACOMM-AS TATA Communications formerl 45090 2103 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute 24560 1993 838 371 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 6039 10080 2588 AMAZON-02, US 11492 4580 303 821 CABLEONE, US 22773 4029 3036 387 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3948 264 28 VIASAT-SP-BACKBONE, US 16625 3660 1887 2548 AKAMAI-AS, US 6327 3390 1318 64 SHAW, CA 749 2890 50784 2146 DNIC-AS-00749, US 30036 2605 374 135 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2525 5043 433 CENTURYLINK-US-LEGACY-QWEST, US 20115 2237 3033 503 CHARTER-20115, 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 12479 6843 1733 150 UNI2-AS, ES 20940 3862 3360 190 AKAMAI-ASN1, NL 8551 3503 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2888 2280 891 ROSTELECOM-AS, RU 9009 2599 274 1387 M247, GB 34984 2203 355 599 TELLCOM-AS, TR 58224 1763 919 579 TCI, IR 13188 1609 100 27 TRIOLAN, UA 61317 1586 213 925 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 10567 3450 581 Uninet S.A. de C.V., MX 10620 3256 491 831 Telmex Colombia S.A., CO 11830 2466 369 62 Instituto Costarricense de Electricidad 13999 1637 283 461 Mega Cable, S.A. de C.V., MX 6503 1437 355 523 Axtel, S.A.B. de C.V., MX 28573 1376 2324 258 CLARO S.A., BR 3816 1243 657 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1140 2350 138 TIM SA, BR 6147 1091 370 21 Telefonica del Peru S.A.A., PE 11664 993 190 443 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 1624 393 21 LINKdotNET-AS, EG 24835 1546 499 32 RAYA-AS, EG 36992 1286 1430 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 613 1863 34 IAM-AS, MA 15399 515 50 32 WANANCHI-, KE 37342 470 32 1 MOVITEL, MZ 23889 424 232 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 10567 3450 581 Uninet S.A. de C.V., MX 9808 8735 8999 54 CHINAMOBILE-CN China Mobile Communicati 12479 6843 1733 150 UNI2-AS, ES 16509 6039 10080 2588 AMAZON-02, US 7545 5836 787 680 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4580 303 821 CABLEONE, US 22773 4029 3036 387 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3948 264 28 VIASAT-SP-BACKBONE, US 20940 3862 3360 190 AKAMAI-ASN1, NL 16625 3660 1887 2548 AKAMAI-AS, US 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 8735 8681 CHINAMOBILE-CN China Mobile Communications Grou 12479 6843 6693 UNI2-AS, ES 7545 5836 5156 TPG-INTERNET-AP TPG Telecom Limited, AU 7155 3948 3920 VIASAT-SP-BACKBONE, US 11492 4580 3759 CABLEONE, US 20940 3862 3672 AKAMAI-ASN1, NL 22773 4029 3642 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3589 3570 VIETEL-AS-AP Viettel Group, VN 8551 3503 3464 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 16509 6039 3451 AMAZON-02, US 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 22442 HOU-PHONOSCOPE, 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: 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/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 /12:300 /13:592 /14:1204 /15:2077 /16:13531 /17:8277 /18:13771 /19:24894 /20:41877 /21:50525 /22:107136 /23:93390 /24:509563 /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 12479 5778 6843 UNI2-AS, ES 8151 4391 10567 Uninet S.A. de C.V., MX 11492 3533 4580 CABLEONE, US 6327 3199 3390 SHAW, CA 7155 3040 3948 VIASAT-SP-BACKBONE, US 22773 3003 4029 ASN-CXA-ALL-CCI-22773-RDC, US 8551 2968 3503 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 39891 2807 3271 ALJAWWALSTC-AS, SA 30036 2260 2605 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1921 2466 Instituto Costarricense de Electricidad y Telec Complete listing at https://bgp.nsrc.org/REN/London/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1882 2:1009 3:148 4:18 5:3675 6:102 7:5 8:1501 11:172 12:1699 13:407 14:2298 15:135 16:34 17:373 18:130 20:143 21:4 22:188 23:5327 24:2334 25:2 27:2576 29:19 31:2425 32:103 34:1 35:49 36:1747 37:3906 38:2411 39:706 40:135 41:3902 42:1038 43:2088 44:294 45:15959 46:3713 47:269 49:1624 50:1882 51:106 52:1348 54:287 55:738 56:4 57:56 58:1637 59:1046 60:947 61:2246 62:2400 63:1941 64:5399 65:2306 66:4912 67:2916 68:1180 69:4105 70:1339 71:676 72:3048 74:2606 75:1505 76:709 77:2130 78:1791 79:2769 80:1889 81:1494 82:1410 83:1182 84:1308 85:2828 86:700 87:1905 88:1006 89:3096 90:492 91:7517 92:1886 93:2561 94:3244 95:3597 96:1293 97:344 98:985 99:879 100:75 101:1300 102:1861 103:27701 104:4081 105:442 106:846 107:2407 108:739 109:3982 110:2049 111:3118 112:1938 113:1418 114:1546 115:1986 116:1858 117:2482 118:2295 119:1882 120:1596 121:968 122:2497 123:2098 124:1548 125:1968 128:1324 129:1113 130:889 131:2071 132:775 133:365 134:1911 135:287 136:846 137:865 138:2447 139:1208 140:845 141:1330 142:1224 143:1399 144:1228 145:332 146:1726 147:1428 148:2201 149:1561 150:860 151:1073 152:1668 153:445 154:3551 155:1355 156:1875 157:1219 158:993 159:2011 160:2376 161:1264 162:3408 163:1179 164:1655 165:1552 166:611 167:1694 168:3624 169:675 170:4291 171:814 172:2915 173:3029 174:1002 175:1145 176:3423 177:4518 178:3014 179:1978 180:2323 181:2661 182:3151 183:1917 184:2415 185:19147 186:4257 187:3493 188:3494 189:3120 190:8736 191:1320 192:10992 193:8477 194:6916 195:4950 196:2923 197:2346 198:5941 199:5955 200:7376 201:5688 202:10190 203:9990 204:4489 205:3385 206:3746 207:3287 208:3975 209:4570 210:3987 211:2307 212:3886 213:3365 214:1151 215:64 216:6356 217:2669 218:1189 219:443 220:1687 221:983 222:673 223:2104 End of report