This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from RENU'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 . IPv4 R&E Routing Table Report 18:35 GMT Sat 22 Jan, 2022 BGP Table (Global) as seen at RENU. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/RENU/ Analysis Summary ---------------- BGP routing table entries examined: 874925 Prefixes after maximum aggregation (per Origin AS): 331604 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 425857 Number of IPv4 prefixes with a valid ROA: 592292 Number of IPv4 prefixes with an invalid ROA: 4769 Number of IPv4 prefixes with no ROA: 1152789 Total ASes present in the Internet Routing Table: 72670 Prefixes per ASN: 12.04 Origin-only ASes present in the Internet Routing Table: 62242 Origin ASes announcing only one prefix: 25662 Transit ASes present in the Internet Routing Table: 10428 Transit-only ASes present in the Internet Routing Table: 400 Average AS path length visible in the Internet Routing Table: 5.7 Max AS path length visible: 250 Max AS path prepend of ASN ( 21299) 246 Prefixes from unregistered ASNs in the Routing Table: 969 Number of instances of unregistered ASNs: 975 Number of 32-bit ASNs allocated by the RIRs: 38362 Number of 32-bit ASNs visible in the Routing Table: 31925 Prefixes from 32-bit ASNs in the Routing Table: 148433 Number of bogon 32-bit ASNs visible in the Routing Table: 54 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 564 Number of addresses announced to Internet: 3067958784 Equivalent to 182 /8s, 221 /16s and 86 /24s Percentage of available address space announced: 82.9 Percentage of allocated address space announced: 82.9 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: 295119 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 225706 Total APNIC prefixes after maximum aggregation: 64990 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 220590 Unique aggregates announced from the APNIC address blocks: 93611 APNIC Region origin ASes present in the Internet Routing Table: 12241 APNIC Prefixes per ASN: 18.02 APNIC Region origin ASes announcing only one prefix: 3494 APNIC Region transit ASes present in the Internet Routing Table: 1721 Average APNIC Region AS path length visible: 6.2 Max APNIC Region AS path length visible: 31 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7466 Number of APNIC addresses announced to Internet: 772926208 Equivalent to 46 /8s, 17 /16s and 235 /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: 257751 Total ARIN prefixes after maximum aggregation: 118566 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 257723 Unique aggregates announced from the ARIN address blocks: 123108 ARIN Region origin ASes present in the Internet Routing Table: 18940 ARIN Prefixes per ASN: 13.61 ARIN Region origin ASes announcing only one prefix: 6855 ARIN Region transit ASes present in the Internet Routing Table: 1948 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4300 Number of ARIN addresses announced to Internet: 1296500992 Equivalent to 77 /8s, 71 /16s and 9 /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: 245334 Total RIPE prefixes after maximum aggregation: 114714 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 241633 Unique aggregates announced from the RIPE address blocks: 148400 RIPE Region origin ASes present in the Internet Routing Table: 28170 RIPE Prefixes per ASN: 8.58 RIPE Region origin ASes announcing only one prefix: 12127 RIPE Region transit ASes present in the Internet Routing Table: 3997 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 250 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10623 Number of RIPE addresses announced to Internet: 713508864 Equivalent to 42 /8s, 135 /16s and 72 /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: 114165 Total LACNIC prefixes after maximum aggregation: 27193 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 114922 Unique aggregates announced from the LACNIC address blocks: 48411 LACNIC Region origin ASes present in the Internet Routing Table: 10922 LACNIC Prefixes per ASN: 10.52 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2220 Average LACNIC Region AS path length visible: 6.4 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8613 Number of LACNIC addresses announced to Internet: 176417024 Equivalent to 10 /8s, 131 /16s and 233 /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: 31000 Total AfriNIC prefixes after maximum aggregation: 5425 AfriNIC Deaggregation factor: 5.71 Prefixes being announced from the AfriNIC address blocks: 39493 Unique aggregates announced from the AfriNIC address blocks: 11824 AfriNIC Region origin ASes present in the Internet Routing Table: 1590 AfriNIC Prefixes per ASN: 24.84 AfriNIC Region origin ASes announcing only one prefix: 523 AfriNIC Region transit ASes present in the Internet Routing Table: 315 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 36 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 923 Number of AfriNIC addresses announced to Internet: 108251392 Equivalent to 6 /8s, 115 /16s and 201 /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 9026 8918 47 CHINAMOBILE-CN China Mobile Communicati 7545 5846 787 680 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3595 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3489 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3434 1880 57 VNPT-AS-VN VNPT Corp, VN 4766 2267 11119 586 KIXS-AS-KR Korea Telecom, KR 9498 2252 474 231 BBIL-AP BHARTI Airtel Ltd., IN 45090 2192 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2119 429 199 TATACOMM-AS TATA Communications formerl 24560 2031 853 360 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 6146 10142 2620 AMAZON-02, US 11492 4600 305 763 CABLEONE, US 22773 3979 3011 362 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3951 264 30 VIASAT-SP-BACKBONE, US 16625 3666 1893 2564 AKAMAI-AS, US 6327 3351 1318 62 SHAW, CA 749 2888 50784 2144 DNIC-AS-00749, US 30036 2612 374 129 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2505 4977 428 CENTURYLINK-US-LEGACY-QWEST, US 20115 2247 3035 507 CHARTER-20115, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6819 1718 153 UNI2-AS, ES 20940 3890 3347 206 AKAMAI-ASN1, NL 8551 3775 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3274 188 25 ALJAWWALSTC-AS, SA 12389 2929 2286 903 ROSTELECOM-AS, RU 9009 2503 257 1302 M247, GB 34984 2216 357 602 TELLCOM-AS, TR 58224 1781 927 583 TCI, IR 13188 1610 100 27 TRIOLAN, UA 61317 1531 209 868 ASDETUK www.heficed.com, GB Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10674 3408 575 Uninet S.A. de C.V., MX 10620 3446 519 713 Telmex Colombia S.A., CO 11830 2462 369 62 Instituto Costarricense de Electricidad 13999 1641 283 465 Mega Cable, S.A. de C.V., MX 6503 1441 355 525 Axtel, S.A.B. de C.V., MX 28573 1379 2327 255 CLARO S.A., BR 3816 1245 658 146 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1135 2350 139 TIM SA, BR 6147 1091 369 21 Telefonica del Peru S.A.A., PE 11664 1001 191 447 Techtel LMDS Comunicaciones Interactiva Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 37457 1942 326 60 Telkom-Internet, ZA 24863 1632 393 21 LINKdotNET-AS, EG 24835 1546 515 32 RAYA-AS, EG 36992 1299 1518 262 ETISALAT-MISR, EG 36903 1195 543 114 MT-MPLS, MA 29571 875 63 59 ORANGE-COTE-IVOIRE, CI 36935 716 521 39 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 521 50 33 WANANCHI-, KE 37342 468 32 1 MOVITEL, MZ Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10674 3408 575 Uninet S.A. de C.V., MX 9808 9026 8918 47 CHINAMOBILE-CN China Mobile Communicati 12479 6819 1718 153 UNI2-AS, ES 16509 6146 10142 2620 AMAZON-02, US 7545 5846 787 680 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4600 305 763 CABLEONE, US 22773 3979 3011 362 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3951 264 30 VIASAT-SP-BACKBONE, US 20940 3890 3347 206 AKAMAI-ASN1, NL 8551 3775 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9026 8979 CHINAMOBILE-CN China Mobile Communications Grou 12479 6819 6666 UNI2-AS, ES 7545 5846 5166 TPG-INTERNET-AP TPG Telecom Limited, AU 7155 3951 3921 VIASAT-SP-BACKBONE, US 11492 4600 3837 CABLEONE, US 8551 3775 3736 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 3890 3684 AKAMAI-ASN1, NL 22773 3979 3617 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3595 3575 VIETEL-AS-AP Viettel Group, VN 16509 6146 3526 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 46990 UNALLOCATED 8.5.242.0/23 174 COGENT-174, 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 32848 UNALLOCATED 8.28.72.0/24 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 46887 LIGHTOWER, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL 198.51.100.0/24 29766 CHSPSC-29766, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-spar 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 23.252.163.0/24 Origin: 398968 GROUP-IID-01, US 23.252.163.0/24 Transit: 174 COGENT-174, US 23.252.164.0/24 Origin: 398968 GROUP-IID-01, US 23.252.164.0/24 Transit: 174 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/RENU/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 /10:39 /11:100 /12:301 /13:590 /14:1204 /15:2069 /16:13579 /17:8326 /18:13834 /19:24878 /20:41729 /21:50584 /22:107333 /23:93791 /24:516539 /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 12479 5769 6819 UNI2-AS, ES 8151 4516 10674 Uninet S.A. de C.V., MX 11492 3534 4600 CABLEONE, US 8551 3240 3775 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3163 3351 SHAW, CA 7155 3041 3951 VIASAT-SP-BACKBONE, US 22773 2976 3979 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2810 3274 ALJAWWALSTC-AS, SA 30036 2267 2612 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 1927 3446 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/RENU/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1782 2:993 3:153 4:9 5:3727 6:102 7:5 8:1534 9:1 11:172 12:1706 13:410 14:2362 15:147 16:38 17:374 18:130 20:171 21:4 22:188 23:5406 24:2370 25:2 27:2591 29:19 31:2398 32:103 34:1 35:51 36:1730 37:3944 38:2502 39:736 40:150 41:4329 42:940 43:2078 44:295 45:16006 46:3848 47:304 49:1624 50:1902 51:105 52:1347 54:294 55:735 56:8 57:57 58:1611 59:1043 60:950 61:2242 62:2441 63:1942 64:5375 65:2321 66:4926 67:2922 68:1183 69:4172 70:1347 71:677 72:3075 74:2630 75:1516 76:714 77:2165 78:1778 79:2874 80:1924 81:1530 82:1454 83:1202 84:1316 85:2830 86:705 87:1890 88:1003 89:3136 90:500 91:7503 92:1905 93:2585 94:3254 95:3581 96:1314 97:345 98:993 99:863 100:75 101:1045 102:2079 103:27981 104:4120 105:2048 106:844 107:2432 108:755 109:4191 110:2027 111:3171 112:1960 113:1440 114:1506 115:1929 116:1837 117:2504 118:2233 119:1816 120:1631 121:975 122:2502 123:2086 124:1525 125:2012 128:1365 129:1235 130:916 131:2095 132:758 133:366 134:1931 135:287 136:851 137:857 138:2459 139:1213 140:868 141:1342 142:1251 143:1442 144:1234 145:336 146:1753 147:1467 148:2217 149:1665 150:851 151:1083 152:1805 153:446 154:3734 155:1366 156:1844 157:1207 158:1006 159:2016 160:2422 161:1286 162:3407 163:1210 164:1685 165:1564 166:614 167:1684 168:3668 169:703 170:4305 171:822 172:3007 173:3041 174:1016 175:1125 176:3474 177:4564 178:3017 179:1982 180:2273 181:2877 182:3179 183:1892 184:2419 185:19223 186:4272 187:3550 188:3782 189:3226 190:8844 191:1309 192:10990 193:8506 194:6936 195:4972 196:3054 197:2700 198:5980 199:5996 200:7465 201:5727 202:10128 203:9988 204:4531 205:3367 206:3810 207:3374 208:3997 209:4604 210:3997 211:2346 212:3915 213:3392 214:1156 215:64 216:6393 217:2698 218:1203 219:418 220:1950 221:987 222:703 223:2140 End of report