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 11 Mar, 2023 IPv4 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: 928551 Prefixes after maximum aggregation (per Origin AS): 346388 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 446040 Number of IPv4 prefixes with a valid ROA: 386858 Number of IPv4 prefixes with an invalid ROA: 1417 Number of IPv4 prefixes with no ROA: 540276 Total ASes present in the Internet Routing Table: 74237 Prefixes per ASN: 12.51 Origin-only ASes present in the Internet Routing Table: 63620 Origin ASes announcing only one prefix: 25663 Transit ASes present in the Internet Routing Table: 10617 Transit-only ASes present in the Internet Routing Table: 459 Paths with bogon ASNs present in the IPv4 Routing Table: 153 Average AS path length visible in the Internet Routing Table: 5.7 Max AS path length visible: 164 Max AS path prepend of ASN ( 51156) 160 Prefixes from unregistered ASNs in the Routing Table: 1165 Number of instances of unregistered ASNs: 1186 Number of 32-bit ASNs allocated by the RIRs: 41417 Number of 32-bit ASNs visible in the Routing Table: 34314 Prefixes from 32-bit ASNs in the Routing Table: 174725 Number of bogon 32-bit ASNs visible in the Routing Table: 102 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 556 Number of addresses announced to Internet: 3063553536 Equivalent to 182 /8s, 154 /16s and 30 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 316158 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236991 Total APNIC prefixes after maximum aggregation: 68297 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 231547 Unique aggregates announced from the APNIC address blocks: 97642 APNIC Region origin ASes present in the Internet Routing Table: 13300 APNIC Prefixes per ASN: 17.41 APNIC Region origin ASes announcing only one prefix: 3862 APNIC Region transit ASes present in the Internet Routing Table: 1788 Average APNIC Region AS path length visible: 6.0 Max APNIC Region AS path length visible: 31 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8614 Number of APNIC addresses announced to Internet: 773126400 Equivalent to 46 /8s, 20 /16s and 249 /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: 269564 Total ARIN prefixes after maximum aggregation: 121837 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 271937 Unique aggregates announced from the ARIN address blocks: 130305 ARIN Region origin ASes present in the Internet Routing Table: 19066 ARIN Prefixes per ASN: 14.26 ARIN Region origin ASes announcing only one prefix: 6979 ARIN Region transit ASes present in the Internet Routing Table: 1967 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 38 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4751 Number of ARIN addresses announced to Internet: 1286667264 Equivalent to 76 /8s, 176 /16s and 252 /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: 260813 Total RIPE prefixes after maximum aggregation: 121418 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 257081 Unique aggregates announced from the RIPE address blocks: 156678 RIPE Region origin ASes present in the Internet Routing Table: 28286 RIPE Prefixes per ASN: 9.09 RIPE Region origin ASes announcing only one prefix: 11989 RIPE Region transit ASes present in the Internet Routing Table: 3990 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 164 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11092 Number of RIPE addresses announced to Internet: 718430208 Equivalent to 42 /8s, 210 /16s and 96 /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: 127924 Total LACNIC prefixes after maximum aggregation: 28162 LACNIC Deaggregation factor: 4.54 Prefixes being announced from the LACNIC address blocks: 127154 Unique aggregates announced from the LACNIC address blocks: 48848 LACNIC Region origin ASes present in the Internet Routing Table: 10984 LACNIC Prefixes per ASN: 11.58 LACNIC Region origin ASes announcing only one prefix: 2274 LACNIC Region transit ASes present in the Internet Routing Table: 2316 Average LACNIC Region AS path length visible: 6.3 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8780 Number of LACNIC addresses announced to Internet: 176461824 Equivalent to 10 /8s, 132 /16s and 152 /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: 32094 Total AfriNIC prefixes after maximum aggregation: 5854 AfriNIC Deaggregation factor: 5.48 Prefixes being announced from the AfriNIC address blocks: 40276 Unique aggregates announced from the AfriNIC address blocks: 12135 AfriNIC Region origin ASes present in the Internet Routing Table: 1731 AfriNIC Prefixes per ASN: 23.27 AfriNIC Region origin ASes announcing only one prefix: 559 AfriNIC Region transit ASes present in the Internet Routing Table: 330 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1077 Number of AfriNIC addresses announced to Internet: 108469504 Equivalent to 6 /8s, 119 /16s and 29 /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 9452 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5766 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3677 1331 21 VIETEL-AS-AP Viettel Group, VN 45899 3452 1872 94 VNPT-AS-VN VNPT Corp, VN 7713 3410 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 9498 2820 499 240 BBIL-AP BHARTI Airtel Ltd., IN 24560 2359 834 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2306 11250 586 KIXS-AS-KR Korea Telecom, KR 45090 2166 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2145 439 211 TATACOMM-AS TATA Communications formerl 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 8064 10757 2875 AMAZON-02, US 11492 4528 300 621 CABLEONE, US 7155 3960 270 44 VIASAT-SP-BACKBONE, US 22773 3648 3048 296 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3505 1320 64 SHAW, CA 16625 3157 1587 2338 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2622 3586 356 GOOGLE-CLOUD-PLATFORM, US 7018 2571 24120 1577 ATT-INTERNET4, US 30036 2520 362 448 MEDIACOM-ENTERPRISE-BUSINESS, 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 7066 1705 149 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4053 3399 170 AKAMAI-ASN1, NL 8551 3894 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2891 2292 911 ROSTELECOM-AS, RU 9009 2652 252 1389 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2169 339 19 UKRTELNET, UA 58224 1846 949 546 TCI, IR 13188 1607 100 27 TRIOLAN, UA 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 11132 3329 591 Uninet S.A. de C.V., MX 10620 3465 504 878 Telmex Colombia S.A., CO 13999 2281 372 608 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1361 2323 251 Claro NXT Telecomunicacoes Ltda, BR 3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1097 180 460 Techtel LMDS Comunicaciones Interactiva 26615 1029 2498 45 TIM SA, BR 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 24863 1553 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1014 67 53 ORANGE-COTE-IVOIRE, CI 36935 868 520 42 Vodafone-, EG 37457 839 325 49 Telkom-Internet, ZA 6713 551 1861 34 IAM-AS, MA 15399 516 53 41 WANANCHI-, KE 36914 507 82 3 KENET-AS, KE 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 11132 3329 591 Uninet S.A. de C.V., MX 9808 9452 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8064 10757 2875 AMAZON-02, US 12479 7066 1705 149 UNI2-AS, ES 7545 5766 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4528 300 621 CABLEONE, US 20940 4053 3399 170 AKAMAI-ASN1, NL 7155 3960 270 44 VIASAT-SP-BACKBONE, US 8551 3894 370 37 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 9452 9404 CHINAMOBILE-CN China Mobile Communications Grou 12479 7066 6917 UNI2-AS, ES 16509 8064 5189 AMAZON-02, US 7545 5766 5075 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3960 3916 VIASAT-SP-BACKBONE, US 11492 4528 3907 CABLEONE, US 20940 4053 3883 AKAMAI-ASN1, NL 8551 3894 3857 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3677 3656 VIETEL-AS-AP Viettel Group, VN 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 65000 PRIVATE 5.227.24.0/22 8580 SANDY MTS Nizhniy Novgorod, 64512 PRIVATE 8.10.33.0/24 14127 ILAND, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 46887 LIGHTOWER, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, 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 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 36944 UBUNTU-UNICAST-AS, MW 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 36944 UBUNTU-UNICAST-AS, MW 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 36944 UBUNTU-UNICAST-AS, MW 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 36944 UBUNTU-UNICAST-AS, MW 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /10:38 /11:103 /12:299 /13:577 /14:1208 /15:2101 /16:13550 /17:8319 /18:13986 /19:25215 /20:43784 /21:52280 /22:110247 /23:100691 /24:556124 /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 6124 7066 UNI2-AS, ES 8151 5123 11132 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3436 4528 CABLEONE, US 8551 3366 3894 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3313 3505 SHAW, CA 7155 3037 3960 VIASAT-SP-BACKBONE, US 22773 2697 3648 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2177 2520 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2019 3465 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) ---------------------------------------------- 1:1553 2:1224 3:168 4:7 5:4445 6:116 7:6 8:1558 9:1 11:172 12:1578 13:391 14:2319 15:293 16:109 17:367 18:399 20:253 21:4 22:188 23:6139 24:2558 25:4 27:2581 29:19 31:2538 32:114 34:8 35:106 36:1918 37:4649 38:4420 39:808 40:151 41:4500 42:772 43:2342 44:314 45:17572 46:4259 47:380 49:1741 50:1835 51:379 52:1589 54:388 55:869 56:8 57:97 58:1703 59:1077 60:973 61:2505 62:2724 63:1944 64:5668 65:2336 66:5020 67:3036 68:1381 69:4163 70:1269 71:672 72:3043 74:2616 75:1467 76:602 77:2523 78:1911 79:3169 80:2081 81:1776 82:1508 83:1245 84:1518 85:3039 86:754 87:2050 88:1283 89:3652 90:613 91:7744 92:2020 93:2587 94:3604 95:3981 96:1325 97:331 98:1168 99:748 100:77 101:1298 102:2951 103:31202 104:4625 105:897 106:883 107:2554 108:946 109:4414 110:2061 111:3235 112:2047 113:1494 114:1634 115:2088 116:1914 117:2574 118:2186 119:1975 120:1741 121:1062 122:2612 123:2179 124:1569 125:2382 128:1346 129:1136 130:1021 131:2165 132:841 133:420 134:1906 135:342 136:867 137:948 138:2832 139:1524 140:1197 141:1473 142:1434 143:1546 144:1207 145:357 146:1931 147:1577 148:2321 149:1941 150:889 151:1146 152:1967 153:571 154:4322 155:1426 156:1690 157:1294 158:1046 159:2262 160:2628 161:1451 162:3569 163:1555 164:1577 165:1734 166:854 167:1741 168:4096 169:955 170:4973 171:882 172:3521 173:2955 174:1015 175:1182 176:3790 177:5969 178:3652 179:2574 180:2377 181:3479 182:3311 183:1880 184:2352 185:20296 186:5097 187:4518 188:4233 189:3965 190:9248 191:1989 192:10994 193:8850 194:7300 195:5200 196:3270 197:2755 198:5968 199:6125 200:8065 201:6109 202:10531 203:10319 204:4603 205:3538 206:3932 207:3449 208:4102 209:4884 210:4239 211:2401 212:4143 213:3568 214:1093 215:58 216:6644 217:2761 218:1283 219:413 220:1756 221:974 222:673 223:2123 End of report