IPv4 R&E Routing Table Report 20:15 GMT Thu 14 Aug, 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: 277892 Prefixes after maximum aggregation (per Origin AS): 120283 Deaggregation factor: 2.31 Unique aggregates announced (without unneeded subnets): 143951 Number of IPv4 prefixes with a valid ROA: 131868 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 145983 Total ASes present in the Internet Routing Table: 20702 Prefixes per ASN: 13.42 Origin-only ASes present in the Internet Routing Table: 17825 Origin ASes announcing only one prefix: 7947 Transit ASes present in the Internet Routing Table: 2877 Transit-only ASes present in the Internet Routing Table: 722 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 349 Number of instances of unregistered ASNs: 378 Number of 32-bit ASNs allocated by the RIRs: 47139 Number of 32-bit ASNs visible in the Routing Table: 8195 Prefixes from 32-bit ASNs in the Routing Table: 33276 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 105 Number of addresses announced to Internet: 1633767173 Equivalent to 97 /8s, 97 /16s and 79 /24s Percentage of available address space announced: 44.1 Percentage of allocated address space announced: 44.1 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: 89202 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36497 Total APNIC prefixes after maximum aggregation: 7610 APNIC Deaggregation factor: 4.80 Prefixes being announced from the APNIC address blocks: 35331 Unique aggregates announced from the APNIC address blocks: 8063 APNIC Region origin ASes present in the Internet Routing Table: 1213 APNIC Prefixes per ASN: 29.13 APNIC Region origin ASes announcing only one prefix: 478 APNIC Region transit ASes present in the Internet Routing Table: 196 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 568 Number of APNIC addresses announced to Internet: 174198380 Equivalent to 10 /8s, 98 /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: 126749 Total ARIN prefixes after maximum aggregation: 66620 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124962 Unique aggregates announced from the ARIN address blocks: 68604 ARIN Region origin ASes present in the Internet Routing Table: 9305 ARIN Prefixes per ASN: 13.43 ARIN Region origin ASes announcing only one prefix: 3871 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: 2187 Number of ARIN addresses announced to Internet: 1023849225 Equivalent to 61 /8s, 6 /16s and 179 /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: 49368 Total RIPE prefixes after maximum aggregation: 26979 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51577 Unique aggregates announced from the RIPE address blocks: 37899 RIPE Region origin ASes present in the Internet Routing Table: 4709 RIPE Prefixes per ASN: 10.95 RIPE Region origin ASes announcing only one prefix: 1965 RIPE Region transit ASes present in the Internet Routing Table: 714 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1964 Number of RIPE addresses announced to Internet: 283600464 Equivalent to 16 /8s, 231 /16s and 102 /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: 56342 Total LACNIC prefixes after maximum aggregation: 16295 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 54501 Unique aggregates announced from the LACNIC address blocks: 24427 LACNIC Region origin ASes present in the Internet Routing Table: 4356 LACNIC Prefixes per ASN: 12.51 LACNIC Region origin ASes announcing only one prefix: 1549 LACNIC Region transit ASes present in the Internet Routing Table: 869 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: 3334 Number of LACNIC addresses announced to Internet: 109036864 Equivalent to 6 /8s, 127 /16s and 197 /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: 8587 Total AfriNIC prefixes after maximum aggregation: 2515 AfriNIC Deaggregation factor: 3.41 Prefixes being announced from the AfriNIC address blocks: 11416 Unique aggregates announced from the AfriNIC address blocks: 4859 AfriNIC Region origin ASes present in the Internet Routing Table: 261 AfriNIC Prefixes per ASN: 43.74 AfriNIC Region origin ASes announcing only one prefix: 84 AfriNIC Region transit ASes present in the Internet Routing Table: 80 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 142 Number of AfriNIC addresses announced to Internet: 42968320 Equivalent to 2 /8s, 143 /16s and 165 /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 12685 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2906 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1686 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1667 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 869 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 817 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 609 2153 462 SINET-AS Research Organization of Informa 132525 594 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 540 894 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 13824 41098 5331 AMAZON-02, US 22773 3341 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2934 229 1744 USDA-1, US 36352 2526 207 1145 AS-COLOCROSSING, US 367 2429 2965 1123 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1666 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1576 22815 1175 ATT-INTERNET4, 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 1210 95 988 AKAMAI-ASN1, NL 3215 889 4819 293 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 672 48 596 CDNEXT, GB 34984 654 98 509 TELLCOM-AS, TR 8376 615 53 26 Jordan Data Communications, JO 51167 564 113 248 CONTABO, DE 58224 525 325 397 TCI, IR 35819 520 516 55 MOBILY-AS Etihad Etisalat Company Mobily, 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 7339 1985 873 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1654 238 1202 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1184 371 22 Telefonica del Peru S.A.A., PE 26615 1014 2487 55 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 11664 801 278 29 Techtel LMDS Comunicaciones Interactivas 27651 650 92 45 ENTEL CHILE S.A., CL 28006 643 76 296 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 1156 93 56 ORANGE-COTE-IVOIRE, CI 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 574 82 3 KENET-AS, KE 36903 539 241 352 MT-MPLS, MA 37069 413 510 62 MOBINIL, EG 2018 375 318 69 TENET-1, ZA 37693 343 599 42 TUNISIANA, TN 24863 327 41 201 LINKdotNET-AS, EG 36992 317 500 213 ETISALAT-MISR, EG 6713 271 1762 50 IAM-AS, MA 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 13824 41098 5331 AMAZON-02, US 9808 12685 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7339 1985 873 UNINET, MX 22773 3341 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2934 229 1744 USDA-1, US 56046 2906 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2526 207 1145 AS-COLOCROSSING, US 367 2429 2965 1123 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 12685 12570 CHINAMOBILE-CN China Mobile Communications Grou 8151 7339 6466 UNINET, MX 22773 3341 3179 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2906 2716 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 56047 1686 1636 CMNET-HUNAN-AP China Mobile communications corp 56041 1667 1589 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 CELLCO-PART, 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 32182 UNALLOCATED 8.9.96.0/23 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 396146 UNALLOCATED 8.44.213.0/24 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 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 /10:30 /11:52 /12:158 /13:219 /14:584 /15:1116 /16:7717 /17:3475 /18:4139 /19:7554 /20:12658 /21:15901 /22:27053 /23:29392 /24:167574 /25:67 /26:83 /27:52 /28:18 /29:10 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3966 7339 UNINET, MX 22773 2497 3341 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2360 13824 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1030 1378 BRIGHTSPEED, US 36352 1010 2526 AS-COLOCROSSING, US 10620 965 1654 Telmex Colombia S.A., CO 209 962 1666 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) ---------------------------------------------- 1:76 2:470 3:875 4:5 5:869 6:144 7:5 8:652 9:2 11:171 12:883 13:423 14:114 15:315 16:247 17:3 18:893 20:191 21:4 22:188 23:2642 24:664 27:22 29:19 31:497 32:12 34:10 35:174 36:3055 37:744 38:2603 39:632 40:88 41:1017 42:152 43:206 44:30 45:4230 46:1037 47:114 49:25 50:483 51:384 52:1382 54:314 55:1103 56:11 57:25 58:44 59:30 60:31 61:54 62:525 63:789 64:1971 65:1100 66:1582 67:1089 68:366 69:1267 70:450 71:189 72:697 74:965 75:322 76:249 77:430 78:363 79:245 80:307 81:364 82:719 83:237 84:314 85:470 86:254 87:218 88:303 89:719 90:108 91:987 92:694 93:457 94:986 95:657 96:265 97:54 98:508 99:200 100:40 101:30 102:414 103:1239 104:1668 105:203 106:47 107:1552 108:537 109:412 110:46 111:2276 112:852 113:46 114:54 115:33 116:50 117:1209 118:73 119:68 120:1497 121:49 122:61 123:145 124:69 125:26 126:1 128:531 129:402 130:682 131:988 132:572 133:212 134:507 135:119 136:675 137:520 138:1034 139:449 140:695 141:380 142:992 143:839 144:425 145:127 146:647 147:511 148:974 149:766 150:211 151:834 152:638 153:134 154:1240 155:912 156:933 157:419 158:576 159:722 160:912 161:642 162:1029 163:406 164:740 165:673 166:811 167:691 168:1521 169:166 170:1796 171:102 172:1319 173:814 174:366 175:91 176:487 177:968 178:598 179:865 180:43 181:2301 182:21 183:1161 184:454 185:3554 186:3014 187:1584 188:799 189:1944 190:6115 191:560 192:5250 193:1782 194:1199 195:890 196:903 197:1183 198:2771 199:5142 200:4591 201:3675 202:985 203:702 204:2203 205:1809 206:1597 207:1635 208:1592 209:1996 210:347 211:480 212:909 213:754 214:952 215:39 216:2628 217:472 218:589 219:20 220:43 221:472 222:24 223:1246 End of report