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 27 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: 864715 Prefixes after maximum aggregation (per Origin AS): 328601 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 421061 Total ASes present in the Internet Routing Table: 72154 Prefixes per ASN: 11.98 Origin-only ASes present in the Internet Routing Table: 61961 Origin ASes announcing only one prefix: 25616 Transit ASes present in the Internet Routing Table: 10193 Transit-only ASes present in the Internet Routing Table: 366 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: 854 Number of instances of unregistered ASNs: 857 Number of 32-bit ASNs allocated by the RIRs: 37923 Number of 32-bit ASNs visible in the Routing Table: 31430 Prefixes from 32-bit ASNs in the Routing Table: 145050 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: 850 Number of addresses announced to Internet: 3071682048 Equivalent to 183 /8s, 22 /16s and 38 /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: 289560 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 225268 Total APNIC prefixes after maximum aggregation: 64280 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 220497 Unique aggregates announced from the APNIC address blocks: 92798 APNIC Region origin ASes present in the Internet Routing Table: 12048 APNIC Prefixes per ASN: 18.30 APNIC Region origin ASes announcing only one prefix: 3443 APNIC Region transit ASes present in the Internet Routing Table: 1685 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7295 Number of APNIC addresses announced to Internet: 773318400 Equivalent to 46 /8s, 23 /16s and 231 /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: 254864 Total ARIN prefixes after maximum aggregation: 117607 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 254425 Unique aggregates announced from the ARIN address blocks: 122062 ARIN Region origin ASes present in the Internet Routing Table: 18858 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 6842 ARIN Region transit ASes present in the Internet Routing Table: 1903 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4211 Number of ARIN addresses announced to Internet: 1301237248 Equivalent to 77 /8s, 143 /16s and 78 /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: 243356 Total RIPE prefixes after maximum aggregation: 113993 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 239509 Unique aggregates announced from the RIPE address blocks: 146624 RIPE Region origin ASes present in the Internet Routing Table: 28152 RIPE Prefixes per ASN: 8.51 RIPE Region origin ASes announcing only one prefix: 12161 RIPE Region transit ASes present in the Internet Routing Table: 3974 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: 10547 Number of RIPE addresses announced to Internet: 712328448 Equivalent to 42 /8s, 117 /16s and 69 /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: 113026 Total LACNIC prefixes after maximum aggregation: 26822 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 113928 Unique aggregates announced from the LACNIC address blocks: 47567 LACNIC Region origin ASes present in the Internet Routing Table: 10794 LACNIC Prefixes per ASN: 10.55 LACNIC Region origin ASes announcing only one prefix: 2623 LACNIC Region transit ASes present in the Internet Routing Table: 2133 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: 8475 Number of LACNIC addresses announced to Internet: 176353024 Equivalent to 10 /8s, 130 /16s and 239 /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: 27347 Total AfriNIC prefixes after maximum aggregation: 5253 AfriNIC Deaggregation factor: 5.21 Prefixes being announced from the AfriNIC address blocks: 35506 Unique aggregates announced from the AfriNIC address blocks: 11239 AfriNIC Region origin ASes present in the Internet Routing Table: 1571 AfriNIC Prefixes per ASN: 22.60 AfriNIC Region origin ASes announcing only one prefix: 547 AfriNIC Region transit ASes present in the Internet Routing Table: 305 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: 902 Number of AfriNIC addresses announced to Internet: 107905536 Equivalent to 6 /8s, 110 /16s and 130 /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 8720 8999 54 CHINAMOBILE-CN China Mobile Communicati 7545 5857 787 680 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3594 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3494 1023 57 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3227 1896 54 VNPT-AS-VN VNPT Corp, VN 4766 2251 11374 574 KIXS-AS-KR Korea Telecom, KR 9498 2183 475 238 BBIL-AP BHARTI Airtel Ltd., IN 4755 2118 429 201 TATACOMM-AS TATA Communications formerl 45090 2102 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute 24560 1990 839 367 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 6013 10014 2585 AMAZON-02, US 11492 4592 304 825 CABLEONE, US 22773 4013 3046 369 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3679 1896 2559 AKAMAI-AS, US 6327 3389 1318 63 SHAW, CA 749 2890 50784 2146 DNIC-AS-00749, US 30036 2600 373 153 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2525 5043 435 CENTURYLINK-US-LEGACY-QWEST, US 20115 2237 3033 502 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 6862 1731 149 UNI2-AS, ES 20940 3919 3360 198 AKAMAI-ASN1, NL 8551 3448 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2886 2279 897 ROSTELECOM-AS, RU 9009 2555 262 1346 M247, GB 34984 2204 355 601 TELLCOM-AS, TR 61317 1660 214 931 ASDETUK www.heficed.com, GB 13188 1610 100 27 TRIOLAN, UA 58224 1447 819 697 TCI, IR 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 10651 3450 580 Uninet S.A. de C.V., MX 10620 3251 491 826 Telmex Colombia S.A., CO 11830 2469 369 62 Instituto Costarricense de Electricidad 13999 1613 285 457 Mega Cable, S.A. de C.V., MX 6503 1497 358 477 Axtel, S.A.B. de C.V., MX 28573 1372 2318 258 CLARO S.A., BR 3816 1239 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1139 2351 139 TIM SA, BR 6147 1088 369 21 Telefonica del Peru S.A.A., PE 11664 980 189 441 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 1631 393 21 LINKdotNET-AS, EG 24835 1553 507 33 RAYA-AS, EG 36992 1286 1430 268 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 826 68 11 ORANGE-COTE-IVOIRE, CI 36935 703 523 44 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 516 50 31 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 10651 3450 580 Uninet S.A. de C.V., MX 9808 8720 8999 54 CHINAMOBILE-CN China Mobile Communicati 12479 6862 1731 149 UNI2-AS, ES 16509 6013 10014 2585 AMAZON-02, US 7545 5857 787 680 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4592 304 825 CABLEONE, US 22773 4013 3046 369 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 20940 3919 3360 198 AKAMAI-ASN1, NL 16625 3679 1896 2559 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 8720 8666 CHINAMOBILE-CN China Mobile Communications Grou 12479 6862 6713 UNI2-AS, ES 7545 5857 5177 TPG-INTERNET-AP TPG Telecom Limited, AU 7155 3950 3920 VIASAT-SP-BACKBONE, US 11492 4592 3767 CABLEONE, US 20940 3919 3721 AKAMAI-ASN1, NL 22773 4013 3644 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3594 3575 VIETEL-AS-AP Viettel Group, VN 7713 3494 3437 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID 16509 6013 3428 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 /12:301 /13:595 /14:1206 /15:2080 /16:13538 /17:8228 /18:13767 /19:24870 /20:41799 /21:50283 /22:106893 /23:93283 /24:507696 /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 5809 6862 UNI2-AS, ES 8151 4447 10651 Uninet S.A. de C.V., MX 11492 3545 4592 CABLEONE, US 6327 3199 3389 SHAW, CA 7155 3040 3950 VIASAT-SP-BACKBONE, US 22773 2991 4013 ASN-CXA-ALL-CCI-22773-RDC, US 8551 2913 3448 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 39891 2807 3271 ALJAWWALSTC-AS, SA 30036 2255 2600 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1924 2469 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) ---------------------------------------------- 1:1895 2:1029 3:146 4:18 5:3715 6:100 7:5 8:1512 11:172 12:1707 13:411 14:2275 15:132 16:32 17:374 18:130 20:142 21:4 22:188 23:5310 24:2339 25:4 27:2568 29:19 31:2379 32:103 34:1 35:48 36:1755 37:3912 38:2369 39:651 40:149 41:3894 42:1024 43:2079 44:294 45:15614 46:3784 47:271 49:1665 50:1876 51:104 52:1346 54:288 55:647 56:4 57:56 58:1632 59:1039 60:940 61:2254 62:2388 63:1942 64:5403 65:2306 66:4921 67:2895 68:1169 69:4092 70:1344 71:676 72:3071 74:2609 75:1502 76:710 77:2140 78:1746 79:2702 80:1871 81:1487 82:1402 83:1171 84:1286 85:2818 86:701 87:1886 88:977 89:3136 90:488 91:7495 92:1889 93:2571 94:3227 95:3589 96:1294 97:342 98:981 99:911 100:75 101:1303 102:1820 103:27477 104:4084 105:426 106:845 107:2385 108:739 109:3980 110:2049 111:3101 112:1959 113:1434 114:1528 115:1977 116:1881 117:2478 118:2299 119:1879 120:1585 121:999 122:2516 123:2113 124:1543 125:1973 128:1349 129:1102 130:902 131:2060 132:768 133:366 134:1905 135:283 136:785 137:859 138:2437 139:1206 140:835 141:1310 142:1215 143:1355 144:1254 145:330 146:1682 147:1453 148:2215 149:1574 150:851 151:1083 152:1648 153:441 154:3307 155:1363 156:1838 157:1198 158:989 159:2021 160:2331 161:1273 162:3395 163:1169 164:1659 165:1516 166:594 167:1679 168:3615 169:679 170:4283 171:808 172:2847 173:3019 174:1003 175:1109 176:3408 177:4491 178:3002 179:1953 180:2315 181:2605 182:3117 183:1919 184:2411 185:19045 186:4249 187:3530 188:3655 189:3105 190:8718 191:1336 192:10984 193:8420 194:6862 195:4900 196:2909 197:2299 198:5958 199:5989 200:7423 201:5677 202:10180 203:10028 204:4481 205:3377 206:3744 207:3310 208:3989 209:4582 210:3988 211:2324 212:3822 213:3385 214:1159 215:64 216:6353 217:2600 218:1188 219:454 220:1690 221:987 222:679 223:2078 End of report