IPv4 R&E Routing Table Report 23:00 GMT Thu 18 May, 2023 IPv4 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: 917163 Prefixes after maximum aggregation (per Origin AS): 348071 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 449125 Number of IPv4 prefixes with a valid ROA: 400138 Number of IPv4 prefixes with an invalid ROA: 1797 Number of IPv4 prefixes with no ROA: 515228 Total ASes present in the Internet Routing Table: 74280 Prefixes per ASN: 12.35 Origin-only ASes present in the Internet Routing Table: 63791 Origin ASes announcing only one prefix: 26229 Transit ASes present in the Internet Routing Table: 10489 Transit-only ASes present in the Internet Routing Table: 430 Paths with bogon ASNs present in the IPv4 Routing Table: 32 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 77 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1089 Number of instances of unregistered ASNs: 1089 Number of 32-bit ASNs allocated by the RIRs: 41880 Number of 32-bit ASNs visible in the Routing Table: 34554 Prefixes from 32-bit ASNs in the Routing Table: 171052 Number of bogon 32-bit ASNs visible in the Routing Table: 6 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 620 Number of addresses announced to Internet: 3056451328 Equivalent to 182 /8s, 45 /16s and 191 /24s Percentage of available address space announced: 82.6 Percentage of allocated address space announced: 82.6 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: 307529 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 239757 Total APNIC prefixes after maximum aggregation: 68573 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 234027 Unique aggregates announced from the APNIC address blocks: 98250 APNIC Region origin ASes present in the Internet Routing Table: 13343 APNIC Prefixes per ASN: 17.54 APNIC Region origin ASes announcing only one prefix: 3925 APNIC Region transit ASes present in the Internet Routing Table: 1780 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8710 Number of APNIC addresses announced to Internet: 772962304 Equivalent to 46 /8s, 18 /16s and 120 /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: 268594 Total ARIN prefixes after maximum aggregation: 122192 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 271376 Unique aggregates announced from the ARIN address blocks: 130349 ARIN Region origin ASes present in the Internet Routing Table: 19061 ARIN Prefixes per ASN: 14.24 ARIN Region origin ASes announcing only one prefix: 6987 ARIN Region transit ASes present in the Internet Routing Table: 1910 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4783 Number of ARIN addresses announced to Internet: 1280623104 Equivalent to 76 /8s, 84 /16s and 194 /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: 259964 Total RIPE prefixes after maximum aggregation: 122432 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 255767 Unique aggregates announced from the RIPE address blocks: 158283 RIPE Region origin ASes present in the Internet Routing Table: 28324 RIPE Prefixes per ASN: 9.03 RIPE Region origin ASes announcing only one prefix: 12068 RIPE Region transit ASes present in the Internet Routing Table: 3984 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11192 Number of RIPE addresses announced to Internet: 717939200 Equivalent to 42 /8s, 202 /16s and 226 /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: 118314 Total LACNIC prefixes after maximum aggregation: 28238 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 117557 Unique aggregates announced from the LACNIC address blocks: 49405 LACNIC Region origin ASes present in the Internet Routing Table: 10986 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2636 LACNIC Region transit ASes present in the Internet Routing Table: 2277 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8778 Number of LACNIC addresses announced to Internet: 176796416 Equivalent to 10 /8s, 137 /16s and 179 /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: 29445 Total AfriNIC prefixes after maximum aggregation: 5844 AfriNIC Deaggregation factor: 5.04 Prefixes being announced from the AfriNIC address blocks: 37816 Unique aggregates announced from the AfriNIC address blocks: 12322 AfriNIC Region origin ASes present in the Internet Routing Table: 1745 AfriNIC Prefixes per ASN: 21.67 AfriNIC Region origin ASes announcing only one prefix: 613 AfriNIC Region transit ASes present in the Internet Routing Table: 333 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 77 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1091 Number of AfriNIC addresses announced to Internet: 107721984 Equivalent to 6 /8s, 107 /16s and 181 /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 9480 8705 37 CHINAMOBILE-CN China Mobile Communicati 7545 5716 784 689 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4131 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3677 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3570 1043 66 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3396 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2960 491 240 BBIL-AP BHARTI Airtel Ltd., IN 24560 2398 837 447 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2300 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2184 442 197 TATACOMM-AS TATA Communications formerl 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 8319 10785 2927 AMAZON-02, US 11492 4537 300 603 CABLEONE, US 7155 4019 281 51 VIASAT-SP-BACKBONE, US 22773 3567 3052 272 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3526 1320 64 SHAW, CA 749 3099 54980 2351 DNIC-AS-00749, US 16625 3079 1549 2326 AKAMAI-AS, US 396982 2655 3592 372 GOOGLE-CLOUD-PLATFORM, US 30036 2498 360 451 MEDIACOM-ENTERPRISE-BUSINESS, US 7018 2483 24147 1557 ATT-INTERNET4, 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 7306 1707 141 UNI2-AS, ES 39891 4765 282 59 ALJAWWALSTC-AS, SA 20940 4093 3398 162 AKAMAI-ASN1, NL 8551 3880 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2890 2292 910 ROSTELECOM-AS, RU 9009 2708 251 1398 M247, RO 34984 2280 360 609 TELLCOM-AS, TR 6849 2017 307 17 UKRTELNET, UA 58224 1846 949 530 TCI, IR 13188 1607 100 18 TRIOLAN, UA 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 11308 3332 600 Uninet S.A. de C.V., MX 10620 3518 508 855 Telmex Colombia S.A., CO 13999 2348 361 621 Mega Cable, S.A. de C.V., MX 11830 2271 369 64 Instituto Costarricense de Electricidad 28573 1330 2323 240 Claro NXT Telecomunicacoes Ltda, BR 6503 1300 339 514 Axtel, S.A.B. de C.V., MX 3816 1293 760 170 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1134 370 22 Telefonica del Peru S.A.A., PE 11664 1094 180 440 Techtel LMDS Comunicaciones Interactiva 26615 1035 2498 45 TIM SA, BR 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 1605 393 19 LINKdotNET-AS, EG 24835 1496 533 29 RAYA-AS, EG 36992 1338 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1028 67 47 ORANGE-COTE-IVOIRE, CI 36935 917 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 519 54 46 WANANCHI-, KE 24757 492 73 5 EthioNet-AS, ET 37342 478 32 1 MOVITEL, MZ 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 11308 3332 600 Uninet S.A. de C.V., MX 9808 9480 8705 37 CHINAMOBILE-CN China Mobile Communicati 16509 8319 10785 2927 AMAZON-02, US 12479 7306 1707 141 UNI2-AS, ES 7545 5716 784 689 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4765 282 59 ALJAWWALSTC-AS, SA 11492 4537 300 603 CABLEONE, US 18403 4131 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 4093 3398 162 AKAMAI-ASN1, NL 7155 4019 281 51 VIASAT-SP-BACKBONE, 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 9480 9443 CHINAMOBILE-CN China Mobile Communications Grou 12479 7306 7165 UNI2-AS, ES 16509 8319 5392 AMAZON-02, US 7545 5716 5027 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4765 4706 ALJAWWALSTC-AS, SA 18403 4131 4106 FPT-AS-AP FPT Telecom Company, VN 7155 4019 3968 VIASAT-SP-BACKBONE, US 11492 4537 3934 CABLEONE, US 20940 4093 3931 AKAMAI-ASN1, NL 8551 3880 3843 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 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 3507 UNALLOCATED 2.57.241.0/24 213035 AS-SERVERION Serverion B.V., 3507 UNALLOCATED 5.105.49.0/24 213035 AS-SERVERION Serverion B.V., 3507 UNALLOCATED 5.105.69.0/24 213035 AS-SERVERION Serverion B.V., 3507 UNALLOCATED 5.105.206.0/24 213035 AS-SERVERION Serverion B.V., 33492 UNALLOCATED 8.6.184.0/23 3356 LEVEL3, 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 Complete listing at https://bgp.nsrc.org/REN/London/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.139.232.0/24 Origin: 211619 MAXKO, HR 23.139.232.0/24 Transit: 42864 GIGANET-HU GigaNet Internet Service Prov 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 37204 TELONE, ZW 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 /9:14 /10:38 /11:104 /12:301 /13:578 /14:1198 /15:2084 /16:13426 /17:8148 /18:13712 /19:24782 /20:43023 /21:50987 /22:109091 /23:97791 /24:551861 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6378 7306 UNI2-AS, ES 8151 5264 11308 Uninet S.A. de C.V., MX 39891 3628 4765 ALJAWWALSTC-AS, SA 11492 3445 4537 CABLEONE, US 8551 3352 3880 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3335 3526 SHAW, CA 7155 3069 4019 VIASAT-SP-BACKBONE, US 22773 2636 3567 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2154 2498 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2071 3518 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/London/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2137 2:1307 3:175 4:5 5:4537 6:129 7:6 8:1512 9:1 11:172 12:1535 13:388 14:2305 15:303 16:186 17:370 18:423 20:258 21:4 22:188 23:6251 24:2592 25:6 27:2496 29:19 31:2491 32:76 34:21 35:109 36:1967 37:4683 38:4621 39:846 40:151 41:3933 42:1947 43:2334 44:310 45:16487 46:4292 47:358 49:1744 50:1836 51:570 52:1601 54:393 55:758 56:8 57:114 58:1801 59:1101 60:987 61:2524 62:2672 63:1923 64:5653 65:2324 66:4989 67:2992 68:1343 69:4098 70:1219 71:670 72:2987 74:2608 75:1555 76:605 77:2439 78:1803 79:3170 80:2126 81:1776 82:1498 83:1269 84:1511 85:2987 86:771 87:2021 88:1156 89:3682 90:618 91:7728 92:2063 93:2611 94:3628 95:4026 96:1310 97:336 98:1150 99:745 100:73 101:1304 102:2725 103:31323 104:4669 105:493 106:941 107:2584 108:1040 109:4407 110:2109 111:3082 112:2028 113:1708 114:1648 115:1999 116:1896 117:2559 118:2611 119:2003 120:1795 121:1062 122:2590 123:2125 124:1570 125:2463 128:1342 129:1013 130:1010 131:1992 132:834 133:422 134:1925 135:306 136:880 137:952 138:2566 139:1544 140:1244 141:1443 142:1448 143:1511 144:1149 145:346 146:1925 147:1582 148:2348 149:2207 150:874 151:1157 152:1930 153:487 154:4394 155:1443 156:1801 157:1319 158:1072 159:2235 160:2546 161:1539 162:3512 163:1516 164:1605 165:1759 166:1060 167:1729 168:3854 169:938 170:4594 171:881 172:3557 173:2950 174:1074 175:1174 176:3685 177:4648 178:3594 179:2209 180:2614 181:3480 182:3357 183:2101 184:2347 185:20259 186:4817 187:4031 188:4093 189:3633 190:9169 191:1444 192:10920 193:8856 194:7305 195:5148 196:3176 197:2368 198:5883 199:6081 200:7953 201:5907 202:10346 203:10280 204:4567 205:3679 206:4227 207:3391 208:4084 209:4844 210:4166 211:2420 212:4165 213:3615 214:1091 215:59 216:6656 217:2697 218:1272 219:408 220:1758 221:974 222:710 223:2148 End of report