IPv4 R&E Routing Table Report 20:15 GMT Sun 13 Jul, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 277094 Prefixes after maximum aggregation (per Origin AS): 120816 Deaggregation factor: 2.29 Unique aggregates announced (without unneeded subnets): 143310 Number of IPv4 prefixes with a valid ROA: 130502 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 146550 Total ASes present in the Internet Routing Table: 20962 Prefixes per ASN: 13.22 Origin-only ASes present in the Internet Routing Table: 18028 Origin ASes announcing only one prefix: 8093 Transit ASes present in the Internet Routing Table: 2934 Transit-only ASes present in the Internet Routing Table: 739 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 353 Number of instances of unregistered ASNs: 385 Number of 32-bit ASNs allocated by the RIRs: 46830 Number of 32-bit ASNs visible in the Routing Table: 8413 Prefixes from 32-bit ASNs in the Routing Table: 33118 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 97 Number of addresses announced to Internet: 1642525445 Equivalent to 97 /8s, 230 /16s and 243 /24s Percentage of available address space announced: 44.4 Percentage of allocated address space announced: 44.4 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: 88461 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34275 Total APNIC prefixes after maximum aggregation: 7590 APNIC Deaggregation factor: 4.52 Prefixes being announced from the APNIC address blocks: 33107 Unique aggregates announced from the APNIC address blocks: 7923 APNIC Region origin ASes present in the Internet Routing Table: 1253 APNIC Prefixes per ASN: 26.42 APNIC Region origin ASes announcing only one prefix: 497 APNIC Region transit ASes present in the Internet Routing Table: 204 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 597 Number of APNIC addresses announced to Internet: 173215340 Equivalent to 10 /8s, 83 /16s and 14 /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, 131072-155961 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: 126407 Total ARIN prefixes after maximum aggregation: 66529 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125016 Unique aggregates announced from the ARIN address blocks: 67786 ARIN Region origin ASes present in the Internet Routing Table: 9325 ARIN Prefixes per ASN: 13.41 ARIN Region origin ASes announcing only one prefix: 3877 ARIN Region transit ASes present in the Internet Routing Table: 880 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2192 Number of ARIN addresses announced to Internet: 1028071945 Equivalent to 61 /8s, 71 /16s and 34 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 50180 Total RIPE prefixes after maximum aggregation: 27476 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51539 Unique aggregates announced from the RIPE address blocks: 38279 RIPE Region origin ASes present in the Internet Routing Table: 4656 RIPE Prefixes per ASN: 11.07 RIPE Region origin ASes announcing only one prefix: 1966 RIPE Region transit ASes present in the Internet Routing Table: 695 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1909 Number of RIPE addresses announced to Internet: 286763600 Equivalent to 17 /8s, 23 /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 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 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: 56522 Total LACNIC prefixes after maximum aggregation: 16689 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 54858 Unique aggregates announced from the LACNIC address blocks: 24920 LACNIC Region origin ASes present in the Internet Routing Table: 4571 LACNIC Prefixes per ASN: 12.00 LACNIC Region origin ASes announcing only one prefix: 1647 LACNIC Region transit ASes present in the Internet Routing Table: 932 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3564 Number of LACNIC addresses announced to Internet: 108867392 Equivalent to 6 /8s, 125 /16s and 47 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 9357 Total AfriNIC prefixes after maximum aggregation: 2272 AfriNIC Deaggregation factor: 4.12 Prefixes being announced from the AfriNIC address blocks: 12477 Unique aggregates announced from the AfriNIC address blocks: 4307 AfriNIC Region origin ASes present in the Internet Routing Table: 286 AfriNIC Prefixes per ASN: 43.63 AfriNIC Region origin ASes announcing only one prefix: 106 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 151 Number of AfriNIC addresses announced to Internet: 45495808 Equivalent to 2 /8s, 182 /16s and 54 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 11566 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1501 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 611 2169 463 SINET-AS Research Organization of Informa 45102 541 888 141 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 132525 456 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13660 40959 5257 AMAZON-02, US 22773 3335 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2854 216 1723 USDA-1, US 36352 2562 210 1141 AS-COLOCROSSING, US 367 2474 3083 1158 DNIC-ASBLK-00306-00371, US 6167 1927 4012 517 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1731 22854 1283 ATT-INTERNET4, US 209 1656 4889 270 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1173 91 956 AKAMAI-ASN1, NL 3257 1042 2082 806 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 25019 855 1301 130 SAUDINETSTC-AS, SA 8452 839 1841 16 TE-AS TE-AS, EG 58224 692 447 493 TCI, IR 212238 657 46 581 CDNEXT, GB 8376 573 52 23 Jordan Data Communications, JO Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7480 2014 900 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1712 248 1232 Telmex Colombia S.A., CO 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 26615 1015 2487 55 TIM SA, BR 18881 885 1127 31 TELEFONICA BRASIL S.A, BR 11172 720 122 78 Alestra, S. de R.L. de C.V., MX 27651 649 92 46 ENTEL CHILE S.A., CL 28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 29571 1067 100 72 ORANGE-COTE-IVOIRE, CI 24835 913 503 33 RAYA-AS, EG 37069 600 1112 11 MOBINIL, EG 24863 573 389 22 LINKdotNET-AS, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 566 82 3 KENET-AS, KE 36992 496 1057 211 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA 37693 343 599 42 TUNISIANA, TN Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13660 40959 5257 AMAZON-02, US 9808 11566 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7480 2014 900 UNINET, MX 22773 3335 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2854 216 1723 USDA-1, US 56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2562 210 1141 AS-COLOCROSSING, US 367 2474 3083 1158 DNIC-ASBLK-00306-00371, US 11830 1987 369 64 Instituto Costarricense de Electricidad y Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 11566 11451 CHINAMOBILE-CN China Mobile Communications Grou 8151 7480 6580 UNINET, MX 22773 3335 3170 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2590 2402 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1501 1451 CMNET-HUNAN-AP China Mobile communications corp 36352 2562 1421 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:14 /9:11 /10:31 /11:51 /12:159 /13:217 /14:591 /15:1115 /16:7719 /17:3482 /18:4242 /19:7763 /20:12865 /21:15880 /22:27476 /23:29347 /24:165899 /25:64 /26:81 /27:37 /28:17 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4017 7480 UNINET, MX 22773 2489 3335 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2341 13660 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1024 2562 AS-COLOCROSSING, US 19901 1022 1341 BRSPD-PUBLIC, US 10620 994 1712 Telmex Colombia S.A., CO 209 961 1656 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:36 2:439 3:847 4:5 5:708 6:149 7:5 8:649 11:171 12:971 13:400 14:113 15:308 16:247 17:3 18:891 20:188 21:4 22:188 23:2658 24:687 27:43 29:19 31:525 32:18 33:1 34:10 35:180 36:2317 37:730 38:2579 39:553 40:80 41:984 42:21 43:232 44:30 45:4323 46:990 47:108 49:26 50:414 51:388 52:1383 54:318 55:1106 56:11 57:24 58:16 59:35 60:33 61:65 62:539 63:781 64:1932 65:1135 66:1604 67:1093 68:386 69:1271 70:455 71:191 72:718 74:959 75:319 76:244 77:485 78:374 79:237 80:289 81:356 82:702 83:232 84:358 85:478 86:240 87:224 88:302 89:712 90:106 91:968 92:663 93:486 94:1060 95:740 96:276 97:53 98:509 99:194 100:42 101:26 102:374 103:1322 104:1696 105:190 106:40 107:1532 108:518 109:436 110:40 111:1940 112:618 113:37 114:56 115:29 116:58 117:1077 118:69 119:82 120:1419 121:50 122:62 123:131 124:66 125:25 126:1 128:524 129:396 130:671 131:1025 132:552 133:212 134:475 135:127 136:674 137:537 138:1025 139:444 140:721 141:369 142:1024 143:794 144:438 145:126 146:686 147:517 148:986 149:739 150:180 151:814 152:626 153:144 154:1214 155:910 156:993 157:394 158:559 159:742 160:827 161:655 162:1086 163:438 164:727 165:575 166:811 167:704 168:1567 169:163 170:1758 171:108 172:1326 173:834 174:361 175:87 176:776 177:1071 178:491 179:872 180:41 181:2258 182:28 183:1049 184:460 185:3500 186:2828 187:1704 188:818 189:1999 190:6021 191:535 192:5273 193:1877 194:1264 195:946 196:702 197:1081 198:2747 199:5031 200:4717 201:3834 202:1009 203:709 204:2231 205:2072 206:1580 207:1618 208:1508 209:2022 210:351 211:461 212:999 213:787 214:946 215:35 216:2582 217:451 218:548 219:18 220:37 221:449 222:24 223:1038 End of report