IPv4 R&E Routing Table Report 20:15 GMT Mon 15 Sep, 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: 276033 Prefixes after maximum aggregation (per Origin AS): 118296 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 141126 Number of IPv4 prefixes with a valid ROA: 128917 Number of IPv4 prefixes with an invalid ROA: 44 Number of IPv4 prefixes with no ROA: 147072 Total ASes present in the Internet Routing Table: 20332 Prefixes per ASN: 13.58 Origin-only ASes present in the Internet Routing Table: 17550 Origin ASes announcing only one prefix: 7826 Transit ASes present in the Internet Routing Table: 2782 Transit-only ASes present in the Internet Routing Table: 673 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: 353 Number of instances of unregistered ASNs: 382 Number of 32-bit ASNs allocated by the RIRs: 47419 Number of 32-bit ASNs visible in the Routing Table: 8085 Prefixes from 32-bit ASNs in the Routing Table: 33364 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: 92 Number of addresses announced to Internet: 1615217893 Equivalent to 96 /8s, 70 /16s and 68 /24s Percentage of available address space announced: 43.6 Percentage of allocated address space announced: 43.6 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: 86894 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36508 Total APNIC prefixes after maximum aggregation: 7661 APNIC Deaggregation factor: 4.77 Prefixes being announced from the APNIC address blocks: 35411 Unique aggregates announced from the APNIC address blocks: 7687 APNIC Region origin ASes present in the Internet Routing Table: 1157 APNIC Prefixes per ASN: 30.61 APNIC Region origin ASes announcing only one prefix: 452 APNIC Region transit ASes present in the Internet Routing Table: 192 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: 523 Number of APNIC addresses announced to Internet: 161990764 Equivalent to 9 /8s, 167 /16s and 200 /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: 126236 Total ARIN prefixes after maximum aggregation: 65973 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123798 Unique aggregates announced from the ARIN address blocks: 67504 ARIN Region origin ASes present in the Internet Routing Table: 9188 ARIN Prefixes per ASN: 13.47 ARIN Region origin ASes announcing only one prefix: 3830 ARIN Region transit ASes present in the Internet Routing Table: 851 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: 2172 Number of ARIN addresses announced to Internet: 1022188265 Equivalent to 60 /8s, 237 /16s and 90 /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: 46187 Total RIPE prefixes after maximum aggregation: 25522 RIPE Deaggregation factor: 1.81 Prefixes being announced from the RIPE address blocks: 48480 Unique aggregates announced from the RIPE address blocks: 36433 RIPE Region origin ASes present in the Internet Routing Table: 4433 RIPE Prefixes per ASN: 10.94 RIPE Region origin ASes announcing only one prefix: 1855 RIPE Region transit ASes present in the Internet Routing Table: 676 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1830 Number of RIPE addresses announced to Internet: 276503888 Equivalent to 16 /8s, 123 /16s and 29 /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: 56036 Total LACNIC prefixes after maximum aggregation: 16401 LACNIC Deaggregation factor: 3.42 Prefixes being announced from the LACNIC address blocks: 54144 Unique aggregates announced from the LACNIC address blocks: 24401 LACNIC Region origin ASes present in the Internet Routing Table: 4442 LACNIC Prefixes per ASN: 12.19 LACNIC Region origin ASes announcing only one prefix: 1579 LACNIC Region transit ASes present in the Internet Routing Table: 868 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3398 Number of LACNIC addresses announced to Internet: 108160576 Equivalent to 6 /8s, 114 /16s and 102 /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: 10713 Total AfriNIC prefixes after maximum aggregation: 2479 AfriNIC Deaggregation factor: 4.32 Prefixes being announced from the AfriNIC address blocks: 14108 Unique aggregates announced from the AfriNIC address blocks: 5011 AfriNIC Region origin ASes present in the Internet Routing Table: 301 AfriNIC Prefixes per ASN: 46.87 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 74 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: 162 Number of AfriNIC addresses announced to Internet: 46260736 Equivalent to 2 /8s, 193 /16s and 226 /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 13085 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2950 811 191 CMNET-JIANGSU-AP China Mobile communicati 56041 1711 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1704 192 50 CMNET-HUNAN-AP China Mobile communication 24444 868 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 862 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 2907 609 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 585 77 426 TPG-INTERNET-AP TPG Telecom Limited, AU 24445 562 497 68 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 14407 40866 5398 AMAZON-02, US 22773 3939 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3002 233 1736 USDA-1, US 36352 2513 206 1170 AS-COLOCROSSING, US 367 2292 2582 1119 DNIC-ASBLK-00306-00371, US 6167 1934 4005 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1429 987 110 ATT-MOBILITY-LLC-AS20057, 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 20940 1256 99 1018 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 787 1841 16 TE-AS TE-AS, EG 212238 691 50 615 CDNEXT, GB 34984 623 107 484 TELLCOM-AS, TR 8376 594 53 26 Jordan Data Communications, JO 25019 570 1296 129 SAUDINETSTC-AS, SA 51167 567 113 248 CONTABO, DE 5511 520 128 437 OPENTRANSIT, FR 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 6885 1872 779 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1682 240 1220 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1182 371 22 Telefonica del Peru S.A.A., PE 26615 1009 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 813 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 27651 651 92 45 ENTEL CHILE S.A., CL 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 1313 572 23 RAYA-AS, EG 24863 1014 389 21 LINKdotNET-AS, EG 37069 965 1096 13 MOBINIL, EG 36935 646 522 42 Vodafone-, EG 36992 583 1087 303 ETISALAT-MISR, EG 20011 576 154 212 NTT-DATA-Inc, ZA 36914 573 82 3 KENET-AS, KE 29571 517 98 69 ORANGE-COTE-IVOIRE, CI 36903 454 203 332 MT-MPLS, MA 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 14407 40866 5398 AMAZON-02, US 9808 13085 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 6885 1872 779 UNINET, MX 22773 3939 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3002 233 1736 USDA-1, US 56046 2950 811 191 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1170 AS-COLOCROSSING, US 367 2292 2582 1119 DNIC-ASBLK-00306-00371, US 11830 1989 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 13085 12971 CHINAMOBILE-CN China Mobile Communications Grou 8151 6885 6106 UNINET, MX 22773 3939 3626 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2950 2759 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1704 1654 CMNET-HUNAN-AP China Mobile communications corp 56041 1711 1633 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1934 1414 CELLCO-PART, US 209 1649 1381 CENTURYLINK-US-LEGACY-QWEST, 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 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 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 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4, US 26295 UNALLOCATED 12.110.210.0/23 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 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 /11:51 /12:156 /13:214 /14:585 /15:1108 /16:7574 /17:3402 /18:4079 /19:7456 /20:12761 /21:15757 /22:28182 /23:28926 /24:165484 /25:66 /26:83 /27:50 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3673 6885 UNINET, MX 22773 2505 3939 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2448 14407 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1036 1394 BRIGHTSPEED, US 36352 997 2513 AS-COLOCROSSING, US 10620 992 1682 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 ATLANTICBB-JOHNSTOWN, US 6167 847 1934 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:278 3:924 4:5 5:594 6:146 7:5 8:641 9:3 11:171 12:892 13:510 14:169 15:341 16:265 17:3 18:896 20:176 21:4 22:188 23:2571 24:681 27:55 29:19 31:467 32:12 34:10 35:180 36:3120 37:747 38:2408 39:669 40:93 41:1057 42:21 43:199 44:30 45:4300 46:982 47:118 49:20 50:470 51:383 52:1440 54:364 55:1088 56:11 57:26 58:19 59:36 60:90 61:58 62:541 63:769 64:1815 65:1089 66:1534 67:1062 68:370 69:1194 70:446 71:181 72:694 74:959 75:311 76:246 77:433 78:317 79:237 80:330 81:369 82:731 83:208 84:334 85:556 86:246 87:208 88:304 89:691 90:106 91:927 92:684 93:426 94:952 95:383 96:260 97:50 98:487 99:250 100:28 101:23 102:401 103:1072 104:1668 105:187 106:40 107:1546 108:529 109:379 110:101 111:2330 112:918 113:30 114:48 115:63 116:52 117:1297 118:73 119:70 120:1540 121:33 122:61 123:148 124:85 125:24 126:1 128:545 129:397 130:625 131:1063 132:567 133:218 134:478 135:119 136:681 137:493 138:997 139:436 140:695 141:361 142:984 143:872 144:399 145:163 146:663 147:504 148:995 149:645 150:203 151:773 152:526 153:180 154:1120 155:976 156:1226 157:438 158:598 159:721 160:636 161:689 162:1017 163:446 164:752 165:618 166:810 167:698 168:1505 169:160 170:1849 171:103 172:1300 173:809 174:360 175:94 176:449 177:896 178:589 179:912 180:39 181:2362 182:29 183:1330 184:452 185:3189 186:3111 187:1662 188:761 189:1785 190:6335 191:571 192:5133 193:1796 194:1133 195:923 196:751 197:1141 198:2701 199:5169 200:4470 201:3548 202:993 203:771 204:2169 205:1806 206:1586 207:1572 208:1554 209:1962 210:348 211:489 212:893 213:729 214:955 215:40 216:2486 217:474 218:602 219:18 220:85 221:457 222:23 223:1302 End of report