IPv4 R&E Routing Table Report 20:15 GMT Fri 22 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: 281281 Prefixes after maximum aggregation (per Origin AS): 120845 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 144077 Number of IPv4 prefixes with a valid ROA: 132644 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 148594 Total ASes present in the Internet Routing Table: 20823 Prefixes per ASN: 13.51 Origin-only ASes present in the Internet Routing Table: 17929 Origin ASes announcing only one prefix: 7983 Transit ASes present in the Internet Routing Table: 2894 Transit-only ASes present in the Internet Routing Table: 702 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 347 Number of instances of unregistered ASNs: 376 Number of 32-bit ASNs allocated by the RIRs: 47246 Number of 32-bit ASNs visible in the Routing Table: 8292 Prefixes from 32-bit ASNs in the Routing Table: 34101 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: 110 Number of addresses announced to Internet: 1638738181 Equivalent to 97 /8s, 173 /16s and 41 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 44.3 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: 89528 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36652 Total APNIC prefixes after maximum aggregation: 7634 APNIC Deaggregation factor: 4.80 Prefixes being announced from the APNIC address blocks: 35498 Unique aggregates announced from the APNIC address blocks: 7945 APNIC Region origin ASes present in the Internet Routing Table: 1204 APNIC Prefixes per ASN: 29.48 APNIC Region origin ASes announcing only one prefix: 470 APNIC Region transit ASes present in the Internet Routing Table: 189 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 561 Number of APNIC addresses announced to Internet: 173909356 Equivalent to 10 /8s, 93 /16s and 165 /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: 126761 Total ARIN prefixes after maximum aggregation: 66805 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125148 Unique aggregates announced from the ARIN address blocks: 68710 ARIN Region origin ASes present in the Internet Routing Table: 9276 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3857 ARIN Region transit ASes present in the Internet Routing Table: 874 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2176 Number of ARIN addresses announced to Internet: 1023535881 Equivalent to 61 /8s, 1 /16s and 235 /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: 49663 Total RIPE prefixes after maximum aggregation: 27014 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51803 Unique aggregates announced from the RIPE address blocks: 38031 RIPE Region origin ASes present in the Internet Routing Table: 4722 RIPE Prefixes per ASN: 10.97 RIPE Region origin ASes announcing only one prefix: 1974 RIPE Region transit ASes present in the Internet Routing Table: 712 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: 1975 Number of RIPE addresses announced to Internet: 283921488 Equivalent to 16 /8s, 236 /16s and 76 /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: 56764 Total LACNIC prefixes after maximum aggregation: 16667 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54912 Unique aggregates announced from the LACNIC address blocks: 24850 LACNIC Region origin ASes present in the Internet Routing Table: 4464 LACNIC Prefixes per ASN: 12.30 LACNIC Region origin ASes announcing only one prefix: 1560 LACNIC Region transit ASes present in the Internet Routing Table: 903 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: 3401 Number of LACNIC addresses announced to Internet: 108682048 Equivalent to 6 /8s, 122 /16s and 91 /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: 11094 Total AfriNIC prefixes after maximum aggregation: 2463 AfriNIC Deaggregation factor: 4.50 Prefixes being announced from the AfriNIC address blocks: 13810 Unique aggregates announced from the AfriNIC address blocks: 4437 AfriNIC Region origin ASes present in the Internet Routing Table: 319 AfriNIC Prefixes per ASN: 43.29 AfriNIC Region origin ASes announcing only one prefix: 122 AfriNIC Region transit ASes present in the Internet Routing Table: 84 Average AfriNIC Region AS path length visible: 6.7 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 179 Number of AfriNIC addresses announced to Internet: 48574208 Equivalent to 2 /8s, 229 /16s and 47 /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 12735 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2910 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1689 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 826 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 607 2152 461 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 541 894 138 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 13976 40849 5367 AMAZON-02, US 22773 3329 3010 156 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2955 230 1748 USDA-1, US 36352 2521 207 1160 AS-COLOCROSSING, US 367 2414 2850 1118 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1651 4885 270 CENTURYLINK-US-LEGACY-QWEST, US 7018 1516 22796 1146 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 1207 95 988 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 665 48 593 CDNEXT, GB 34984 644 96 501 TELLCOM-AS, TR 8376 602 53 26 Jordan Data Communications, JO 35819 578 576 71 MOBILY-AS Etihad Etisalat Company Mobily, 8452 574 1841 16 TE-AS TE-AS, EG 51167 564 113 248 CONTABO, DE 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 7206 1954 801 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1182 371 22 Telefonica del Peru S.A.A., PE 26615 1018 2487 55 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 11664 807 278 29 Techtel LMDS Comunicaciones Interactivas 27651 651 92 45 ENTEL CHILE S.A., CL 28006 644 76 297 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 24835 1265 572 23 RAYA-AS, EG 29571 1152 93 56 ORANGE-COTE-IVOIRE, CI 24863 982 389 23 LINKdotNET-AS, EG 37069 644 1096 13 MOBINIL, EG 36935 617 521 40 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36903 563 246 362 MT-MPLS, MA 36914 486 82 3 KENET-AS, KE 36992 434 1038 211 ETISALAT-MISR, EG 2018 375 318 69 TENET-1, ZA 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 13976 40849 5367 AMAZON-02, US 9808 12735 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7206 1954 801 UNINET, MX 22773 3329 3010 156 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2955 230 1748 USDA-1, US 56046 2910 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2521 207 1160 AS-COLOCROSSING, US 367 2414 2850 1118 DNIC-ASBLK-00306-00371, US 11830 1988 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 12735 12620 CHINAMOBILE-CN China Mobile Communications Grou 8151 7206 6405 UNINET, MX 22773 3329 3173 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2910 2720 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1689 1639 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 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 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 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 /10:30 /11:52 /12:160 /13:223 /14:592 /15:1116 /16:7773 /17:3487 /18:4192 /19:7603 /20:13024 /21:15932 /22:28549 /23:29603 /24:168676 /25:67 /26:83 /27:52 /28:18 /29:9 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3875 7206 UNINET, MX 22773 2492 3329 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2375 13976 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1036 1386 BRIGHTSPEED, US 36352 1006 2521 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 960 1651 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) ---------------------------------------------- 1:44 2:466 3:918 4:5 5:873 6:145 7:5 8:649 9:2 11:171 12:883 13:422 14:121 15:324 16:247 17:3 18:894 20:191 21:4 22:188 23:2690 24:664 27:38 29:19 31:498 32:12 34:10 35:174 36:3076 37:799 38:2657 39:634 40:86 41:1026 42:282 43:213 44:29 45:4378 46:1033 47:114 49:25 50:494 51:384 52:1389 54:328 55:1112 56:11 57:29 58:44 59:31 60:32 61:56 62:549 63:781 64:1954 65:1100 66:1593 67:1084 68:368 69:1254 70:448 71:188 72:687 74:961 75:322 76:249 77:458 78:362 79:244 80:305 81:385 82:711 83:229 84:325 85:467 86:260 87:221 88:303 89:719 90:108 91:996 92:684 93:462 94:967 95:654 96:269 97:55 98:497 99:204 100:40 101:24 102:434 103:1257 104:1687 105:217 106:54 107:1549 108:535 109:398 110:53 111:2286 112:876 113:73 114:54 115:20 116:49 117:1217 118:70 119:66 120:1504 121:45 122:63 123:134 124:65 125:25 126:1 128:548 129:405 130:669 131:1020 132:557 133:221 134:511 135:121 136:681 137:515 138:1053 139:449 140:692 141:378 142:991 143:848 144:418 145:138 146:649 147:483 148:989 149:780 150:197 151:831 152:635 153:178 154:967 155:910 156:1045 157:419 158:580 159:724 160:913 161:658 162:1032 163:451 164:752 165:695 166:816 167:700 168:1558 169:170 170:1824 171:102 172:1328 173:826 174:367 175:86 176:504 177:1024 178:597 179:916 180:42 181:2320 182:29 183:1165 184:451 185:3575 186:3128 187:1581 188:816 189:1903 190:6091 191:577 192:5230 193:1853 194:1207 195:975 196:920 197:1140 198:2750 199:5165 200:4548 201:3651 202:979 203:729 204:2212 205:1824 206:1583 207:1616 208:1590 209:1968 210:348 211:485 212:932 213:776 214:954 215:39 216:2584 217:470 218:593 219:19 220:32 221:472 222:24 223:1268 End of report