IPv4 R&E Routing Table Report 20:15 GMT Mon 20 Oct, 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: 277810 Prefixes after maximum aggregation (per Origin AS): 117917 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 142537 Number of IPv4 prefixes with a valid ROA: 129820 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 147780 Total ASes present in the Internet Routing Table: 20258 Prefixes per ASN: 13.71 Origin-only ASes present in the Internet Routing Table: 17467 Origin ASes announcing only one prefix: 7866 Transit ASes present in the Internet Routing Table: 2791 Transit-only ASes present in the Internet Routing Table: 692 Paths with bogon ASNs present in the IPv4 Routing Table: 50 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: 285 Number of instances of unregistered ASNs: 351 Number of 32-bit ASNs allocated by the RIRs: 47761 Number of 32-bit ASNs visible in the Routing Table: 8030 Prefixes from 32-bit ASNs in the Routing Table: 33018 Number of bogon 32-bit ASNs visible in the Routing Table: 148 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 101 Number of addresses announced to Internet: 1627094693 Equivalent to 96 /8s, 251 /16s and 126 /24s Percentage of available address space announced: 43.9 Percentage of allocated address space announced: 43.9 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: 87244 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38676 Total APNIC prefixes after maximum aggregation: 7855 APNIC Deaggregation factor: 4.92 Prefixes being announced from the APNIC address blocks: 37485 Unique aggregates announced from the APNIC address blocks: 8288 APNIC Region origin ASes present in the Internet Routing Table: 1132 APNIC Prefixes per ASN: 33.11 APNIC Region origin ASes announcing only one prefix: 439 APNIC Region transit ASes present in the Internet Routing Table: 186 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 519 Number of APNIC addresses announced to Internet: 174966380 Equivalent to 10 /8s, 109 /16s and 198 /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: 126863 Total ARIN prefixes after maximum aggregation: 65613 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 124699 Unique aggregates announced from the ARIN address blocks: 68482 ARIN Region origin ASes present in the Internet Routing Table: 9203 ARIN Prefixes per ASN: 13.55 ARIN Region origin ASes announcing only one prefix: 3852 ARIN Region transit ASes present in the Internet Routing Table: 846 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 37 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2179 Number of ARIN addresses announced to Internet: 1020068073 Equivalent to 60 /8s, 205 /16s and 0 /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: 45042 Total RIPE prefixes after maximum aggregation: 25156 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 47399 Unique aggregates announced from the RIPE address blocks: 35783 RIPE Region origin ASes present in the Internet Routing Table: 4422 RIPE Prefixes per ASN: 10.72 RIPE Region origin ASes announcing only one prefix: 1903 RIPE Region transit ASes present in the Internet Routing Table: 698 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1819 Number of RIPE addresses announced to Internet: 279715152 Equivalent to 16 /8s, 172 /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: 56375 Total LACNIC prefixes after maximum aggregation: 16421 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54321 Unique aggregates announced from the LACNIC address blocks: 24110 LACNIC Region origin ASes present in the Internet Routing Table: 4386 LACNIC Prefixes per ASN: 12.39 LACNIC Region origin ASes announcing only one prefix: 1568 LACNIC Region transit ASes present in the Internet Routing Table: 857 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: 3349 Number of LACNIC addresses announced to Internet: 108033280 Equivalent to 6 /8s, 112 /16s and 117 /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: 10569 Total AfriNIC prefixes after maximum aggregation: 2637 AfriNIC Deaggregation factor: 4.01 Prefixes being announced from the AfriNIC address blocks: 13805 Unique aggregates announced from the AfriNIC address blocks: 5778 AfriNIC Region origin ASes present in the Internet Routing Table: 296 AfriNIC Prefixes per ASN: 46.64 AfriNIC Region origin ASes announcing only one prefix: 104 AfriNIC Region transit ASes present in the Internet Routing Table: 76 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: 164 Number of AfriNIC addresses announced to Internet: 44202240 Equivalent to 2 /8s, 162 /16s and 121 /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 13647 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1741 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 941 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 870 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 679 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 611 2169 463 SINET-AS Research Organization of Informa 132525 591 99 30 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 586 77 427 TPG-INTERNET-AP TPG Telecom Limited, AU 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 14305 41081 5365 AMAZON-02, US 22773 4301 3070 365 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 4155 3110 241 1757 USDA-1, US 36352 2573 210 1168 AS-COLOCROSSING, US 6167 1950 4046 511 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1868 2134 867 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1439 683 721 BRIGHTSPEED, 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 1288 101 1046 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 865 1841 16 TE-AS TE-AS, EG 212238 722 53 640 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 561 53 25 Jordan Data Communications, JO 35819 542 538 91 MOBILY-AS Etihad Etisalat Company Mobily, 5511 527 129 444 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 7061 1918 787 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1694 241 1220 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1280 371 23 Telefonica del Peru S.A.A., PE 11664 1253 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1012 2486 56 TIM SA, BR 18881 895 1127 31 TELEFONICA BRASIL S.A, BR 12252 695 164 24 America Movil Peru S.A.C., PE 52468 649 40 194 UFINET PANAMA S.A., PA 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 1300 444 95 RAYA-AS, EG 24863 1019 389 22 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36992 608 1094 302 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 82 3 KENET-AS, KE 36935 488 124 132 Vodafone-, EG 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 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 14305 41081 5365 AMAZON-02, US 9808 13647 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7061 1918 787 UNINET, MX 22773 4301 3070 365 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 4155 3110 241 1757 USDA-1, US 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2573 210 1168 AS-COLOCROSSING, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 6167 1950 4046 511 CELLCO-PART, US 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 13647 13528 CHINAMOBILE-CN China Mobile Communications Grou 8151 7061 6274 UNINET, MX 22773 4301 3936 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3103 2910 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 11776 1909 1693 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1741 1663 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1950 1439 CELLCO-PART, US 36352 2573 1405 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 1782 UNALLOCATED 8.42.19.0/24 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 12114 UNALLOCATED 12.129.100.0/24 7018 ATT-INTERNET4, US 22538 UNALLOCATED 12.131.3.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 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 23.178.24.0/24 Origin: 53850 GORILLASERVERS, US 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, US 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 /10:31 /11:50 /12:161 /13:214 /14:587 /15:1095 /16:7671 /17:3410 /18:4119 /19:7622 /20:12591 /21:15813 /22:28305 /23:28754 /24:167122 /25:64 /26:82 /27:49 /28:18 /29:8 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3881 7061 UNINET, MX 22773 2648 4301 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2408 14305 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1058 1439 BRIGHTSPEED, US 36352 1039 2573 AS-COLOCROSSING, US 10620 1004 1694 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 922 1253 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 885 1909 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:312 3:934 4:5 5:594 6:157 7:5 8:614 9:5 11:171 12:874 13:479 14:171 15:344 16:271 17:3 18:898 20:197 21:4 22:188 23:2711 24:595 27:56 29:19 31:444 32:13 34:10 35:184 36:3192 37:554 38:2565 39:748 40:94 41:1039 42:145 43:200 44:27 45:4230 46:973 47:147 49:22 50:474 51:389 52:1458 54:346 55:1100 56:11 57:28 58:17 59:33 60:91 61:61 62:529 63:740 64:1961 65:1015 66:1973 67:1050 68:510 69:1207 70:442 71:171 72:748 74:987 75:309 76:235 77:368 78:305 79:265 80:316 81:379 82:728 83:197 84:338 85:587 86:246 87:180 88:283 89:691 90:105 91:901 92:661 93:423 94:855 95:424 96:273 97:50 98:407 99:241 100:22 101:18 102:468 103:1031 104:1599 105:174 106:61 107:1701 108:531 109:334 110:92 111:2504 112:1099 113:32 114:39 115:63 116:56 117:1447 118:78 119:71 120:1649 121:30 122:62 123:175 124:85 125:24 128:554 129:400 130:671 131:1054 132:577 133:221 134:499 135:124 136:674 137:497 138:1000 139:428 140:735 141:363 142:1180 143:881 144:413 145:143 146:660 147:476 148:984 149:729 150:191 151:777 152:700 153:176 154:1122 155:983 156:1144 157:438 158:580 159:742 160:520 161:701 162:996 163:432 164:714 165:632 166:802 167:679 168:1439 169:148 170:1867 171:101 172:1295 173:795 174:289 175:104 176:407 177:889 178:635 179:910 180:35 181:2422 182:29 183:1488 184:454 185:3064 186:3253 187:1681 188:759 189:1854 190:6268 191:533 192:5069 193:1707 194:1073 195:918 196:708 197:1105 198:2700 199:5198 200:4382 201:3688 202:991 203:785 204:2111 205:1595 206:1515 207:1719 208:1553 209:1933 210:344 211:509 212:967 213:700 214:946 215:40 216:2513 217:481 218:658 219:18 220:87 221:496 222:24 223:1504 End of report