IPv4 R&E Routing Table Report 20:15 GMT Mon 13 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: 278035 Prefixes after maximum aggregation (per Origin AS): 118747 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 142385 Number of IPv4 prefixes with a valid ROA: 129979 Number of IPv4 prefixes with an invalid ROA: 209 Number of IPv4 prefixes with no ROA: 147847 Total ASes present in the Internet Routing Table: 20315 Prefixes per ASN: 13.69 Origin-only ASes present in the Internet Routing Table: 17513 Origin ASes announcing only one prefix: 7837 Transit ASes present in the Internet Routing Table: 2802 Transit-only ASes present in the Internet Routing Table: 686 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: 315 Number of instances of unregistered ASNs: 381 Number of 32-bit ASNs allocated by the RIRs: 47694 Number of 32-bit ASNs visible in the Routing Table: 8039 Prefixes from 32-bit ASNs in the Routing Table: 33242 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: 100 Number of addresses announced to Internet: 1612806821 Equivalent to 96 /8s, 33 /16s and 122 /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: 86896 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38833 Total APNIC prefixes after maximum aggregation: 7938 APNIC Deaggregation factor: 4.89 Prefixes being announced from the APNIC address blocks: 37828 Unique aggregates announced from the APNIC address blocks: 8299 APNIC Region origin ASes present in the Internet Routing Table: 1173 APNIC Prefixes per ASN: 32.25 APNIC Region origin ASes announcing only one prefix: 452 APNIC Region transit ASes present in the Internet Routing Table: 193 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: 534 Number of APNIC addresses announced to Internet: 164443756 Equivalent to 9 /8s, 205 /16s and 54 /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: 126375 Total ARIN prefixes after maximum aggregation: 65746 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 123881 Unique aggregates announced from the ARIN address blocks: 67417 ARIN Region origin ASes present in the Internet Routing Table: 9192 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3838 ARIN Region transit ASes present in the Internet Routing Table: 849 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: 2178 Number of ARIN addresses announced to Internet: 1019757801 Equivalent to 60 /8s, 200 /16s and 68 /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: 46236 Total RIPE prefixes after maximum aggregation: 25775 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 48672 Unique aggregates announced from the RIPE address blocks: 36785 RIPE Region origin ASes present in the Internet Routing Table: 4470 RIPE Prefixes per ASN: 10.89 RIPE Region origin ASes announcing only one prefix: 1902 RIPE Region transit ASes present in the Internet Routing Table: 706 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: 1851 Number of RIPE addresses announced to Internet: 276135760 Equivalent to 16 /8s, 117 /16s and 127 /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: 55860 Total LACNIC prefixes after maximum aggregation: 16385 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 53884 Unique aggregates announced from the LACNIC address blocks: 23993 LACNIC Region origin ASes present in the Internet Routing Table: 4367 LACNIC Prefixes per ASN: 12.34 LACNIC Region origin ASes announcing only one prefix: 1538 LACNIC Region transit ASes present in the Internet Routing Table: 851 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: 3315 Number of LACNIC addresses announced to Internet: 107817984 Equivalent to 6 /8s, 109 /16s and 44 /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: 10416 Total AfriNIC prefixes after maximum aggregation: 2650 AfriNIC Deaggregation factor: 3.93 Prefixes being announced from the AfriNIC address blocks: 13670 Unique aggregates announced from the AfriNIC address blocks: 5796 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 46.34 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 72 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 161 Number of AfriNIC addresses announced to Internet: 44542208 Equivalent to 2 /8s, 167 /16s and 169 /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 13538 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3076 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1737 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 939 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 868 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 674 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 611 2169 463 SINET-AS Research Organization of Informa 4780 598 272 207 SEEDNET Digital United Inc., TW 132525 588 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 14268 40985 5340 AMAZON-02, US 22773 4108 3058 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3104 240 1740 USDA-1, US 36352 2557 209 1168 AS-COLOCROSSING, US 6167 1947 4036 513 CELLCO-PART, US 11776 1906 259 215 ATLANTICBB-JOHNSTOWN, US 367 1862 2127 870 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1441 682 715 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 1237 97 1008 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 820 1841 16 TE-AS TE-AS, EG 212238 725 53 643 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 8376 568 53 26 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 524 129 441 OPENTRANSIT, FR 35819 521 517 104 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 6657 1878 784 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1669 239 1206 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1241 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1230 371 23 Telefonica del Peru S.A.A., PE 26615 1012 2486 56 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 12252 695 164 24 America Movil Peru S.A.C., PE 27651 650 92 49 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 1208 378 94 RAYA-AS, EG 24863 1005 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 572 82 3 KENET-AS, KE 36903 524 243 372 MT-MPLS, MA 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 2018 375 318 69 TENET-1, ZA 36935 365 106 112 Vodafone-, EG 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 14268 40985 5340 AMAZON-02, US 9808 13538 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 6657 1878 784 UNINET, MX 22773 4108 3058 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3104 240 1740 USDA-1, US 56046 3076 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2557 209 1168 AS-COLOCROSSING, US 11830 1988 369 64 Instituto Costarricense de Electricidad y 6167 1947 4036 513 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 13538 13419 CHINAMOBILE-CN China Mobile Communications Grou 8151 6657 5873 UNINET, MX 22773 4108 3744 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3076 2883 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 11776 1906 1691 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1737 1659 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1947 1434 CELLCO-PART, US 36352 2557 1389 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 395438 UNALLOCATED 8.42.206.0/24 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 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 /10:30 /11:50 /12:158 /13:214 /14:585 /15:1097 /16:7560 /17:3412 /18:4134 /19:7602 /20:12544 /21:15853 /22:28243 /23:28822 /24:167467 /25:64 /26:81 /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 3622 6657 UNINET, MX 22773 2586 4108 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2386 14268 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 19901 1057 1441 BRIGHTSPEED, US 36352 1041 2557 AS-COLOCROSSING, US 10620 980 1669 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 912 1241 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 885 1906 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 2:294 3:935 4:5 5:610 6:157 7:5 8:626 9:5 11:171 12:882 13:503 14:172 15:344 16:274 17:3 18:899 20:196 21:4 22:188 23:2584 24:685 27:56 29:19 31:488 32:13 34:10 35:181 36:3186 37:767 38:2484 39:739 40:94 41:1023 42:145 43:203 44:26 45:4242 46:1033 47:145 49:22 50:472 51:391 52:1439 54:352 55:1091 56:11 57:28 58:17 59:29 60:147 61:91 62:539 63:759 64:1807 65:1028 66:1558 67:993 68:387 69:1164 70:441 71:171 72:757 74:979 75:310 76:246 77:420 78:306 79:270 80:319 81:383 82:766 83:201 84:343 85:553 86:248 87:193 88:294 89:706 90:105 91:909 92:670 93:432 94:861 95:446 96:266 97:50 98:409 99:242 100:22 101:22 102:414 103:1086 104:1617 105:174 106:74 107:1639 108:528 109:371 110:93 111:2457 112:1061 113:32 114:44 115:63 116:60 117:1433 118:70 119:70 120:1630 121:30 122:94 123:195 124:179 125:26 128:551 129:402 130:627 131:1063 132:576 133:222 134:494 135:124 136:671 137:499 138:1013 139:454 140:728 141:362 142:1191 143:862 144:408 145:140 146:655 147:485 148:986 149:660 150:206 151:787 152:662 153:175 154:1143 155:897 156:1156 157:440 158:588 159:756 160:610 161:699 162:1002 163:443 164:754 165:618 166:809 167:679 168:1502 169:155 170:1847 171:100 172:1304 173:795 174:289 175:133 176:438 177:880 178:667 179:873 180:36 181:2385 182:28 183:1464 184:440 185:3261 186:3227 187:1575 188:772 189:1785 190:6244 191:545 192:5073 193:1728 194:1085 195:964 196:747 197:1136 198:2696 199:5239 200:4399 201:3661 202:1016 203:797 204:2160 205:1820 206:1521 207:1609 208:1536 209:1940 210:490 211:509 212:983 213:718 214:950 215:40 216:2438 217:491 218:714 219:18 220:128 221:475 222:26 223:1490 End of report