IPv4 R&E Routing Table Report 20:15 GMT Thu 16 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: 279083 Prefixes after maximum aggregation (per Origin AS): 118529 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 143372 Number of IPv4 prefixes with a valid ROA: 130807 Number of IPv4 prefixes with an invalid ROA: 211 Number of IPv4 prefixes with no ROA: 148065 Total ASes present in the Internet Routing Table: 20325 Prefixes per ASN: 13.73 Origin-only ASes present in the Internet Routing Table: 17536 Origin ASes announcing only one prefix: 7871 Transit ASes present in the Internet Routing Table: 2789 Transit-only ASes present in the Internet Routing Table: 697 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: 296 Number of instances of unregistered ASNs: 362 Number of 32-bit ASNs allocated by the RIRs: 47721 Number of 32-bit ASNs visible in the Routing Table: 8032 Prefixes from 32-bit ASNs in the Routing Table: 32972 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: 102 Number of addresses announced to Internet: 1617931429 Equivalent to 96 /8s, 111 /16s and 172 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 87576 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 39091 Total APNIC prefixes after maximum aggregation: 7962 APNIC Deaggregation factor: 4.91 Prefixes being announced from the APNIC address blocks: 37894 Unique aggregates announced from the APNIC address blocks: 8251 APNIC Region origin ASes present in the Internet Routing Table: 1174 APNIC Prefixes per ASN: 32.28 APNIC Region origin ASes announcing only one prefix: 458 APNIC Region transit ASes present in the Internet Routing Table: 194 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: 541 Number of APNIC addresses announced to Internet: 164426604 Equivalent to 9 /8s, 204 /16s and 243 /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: 127491 Total ARIN prefixes after maximum aggregation: 65931 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 125304 Unique aggregates announced from the ARIN address blocks: 68958 ARIN Region origin ASes present in the Internet Routing Table: 9204 ARIN Prefixes per ASN: 13.61 ARIN Region origin ASes announcing only one prefix: 3840 ARIN Region transit ASes present in the Internet Routing Table: 850 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: 2179 Number of ARIN addresses announced to Internet: 1020692969 Equivalent to 60 /8s, 214 /16s and 137 /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: 45579 Total RIPE prefixes after maximum aggregation: 25497 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 48036 Unique aggregates announced from the RIPE address blocks: 36336 RIPE Region origin ASes present in the Internet Routing Table: 4486 RIPE Prefixes per ASN: 10.71 RIPE Region origin ASes announcing only one prefix: 1913 RIPE Region transit ASes present in the Internet Routing Table: 696 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: 1843 Number of RIPE addresses announced to Internet: 280229456 Equivalent to 16 /8s, 179 /16s and 246 /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: 56176 Total LACNIC prefixes after maximum aggregation: 16269 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54144 Unique aggregates announced from the LACNIC address blocks: 23968 LACNIC Region origin ASes present in the Internet Routing Table: 4338 LACNIC Prefixes per ASN: 12.48 LACNIC Region origin ASes announcing only one prefix: 1553 LACNIC Region transit ASes present in the Internet Routing Table: 848 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: 3307 Number of LACNIC addresses announced to Internet: 108091136 Equivalent to 6 /8s, 113 /16s and 87 /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: 10450 Total AfriNIC prefixes after maximum aggregation: 2632 AfriNIC Deaggregation factor: 3.97 Prefixes being announced from the AfriNIC address blocks: 13603 Unique aggregates announced from the AfriNIC address blocks: 5762 AfriNIC Region origin ASes present in the Internet Routing Table: 296 AfriNIC Prefixes per ASN: 45.96 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 75 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: 162 Number of AfriNIC addresses announced to Internet: 44381440 Equivalent to 2 /8s, 165 /16s and 53 /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 13649 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 4780 598 272 207 SEEDNET Digital United Inc., TW 132525 591 99 30 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 14360 41088 5394 AMAZON-02, US 22773 4251 3066 365 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3118 241 1749 USDA-1, US 36352 2554 208 1165 AS-COLOCROSSING, US 6167 1950 4046 511 CELLCO-PART, US 11776 1909 259 216 ATLANTICBB-JOHNSTOWN, US 367 1880 2137 876 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1439 683 717 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 1251 98 1019 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 822 1841 16 TE-AS TE-AS, EG 212238 734 54 652 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 8376 567 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 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 7260 1960 782 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1672 240 1207 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1271 371 23 Telefonica del Peru S.A.A., PE 11664 1251 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1012 2486 56 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 12252 695 164 24 America Movil Peru S.A.C., PE 52468 648 40 195 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 1210 380 95 RAYA-AS, EG 24863 1016 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 574 82 3 KENET-AS, KE 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA 36935 369 106 112 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 14360 41088 5394 AMAZON-02, US 9808 13649 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7260 1960 782 UNINET, MX 22773 4251 3066 365 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3118 241 1749 USDA-1, US 56046 3103 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2554 208 1165 AS-COLOCROSSING, US 11830 1988 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 13649 13530 CHINAMOBILE-CN China Mobile Communications Grou 8151 7260 6478 UNINET, MX 22773 4251 3886 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3103 2910 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 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 2554 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 /10:31 /11:50 /12:158 /13:214 /14:585 /15:1097 /16:7564 /17:3420 /18:4112 /19:7660 /20:12627 /21:15855 /22:28260 /23:28752 /24:168433 /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 3932 7260 UNINET, MX 22773 2650 4251 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2412 14360 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 19901 1056 1439 BRIGHTSPEED, US 36352 1038 2554 AS-COLOCROSSING, US 10620 983 1672 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 921 1251 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 2:295 3:942 4:5 5:615 6:157 7:5 8:621 9:5 11:171 12:872 13:501 14:172 15:344 16:273 17:3 18:899 20:196 21:4 22:188 23:2679 24:596 27:56 29:19 31:461 32:13 34:10 35:183 36:3196 37:530 38:2524 39:748 40:94 41:1032 42:145 43:204 44:28 45:4207 46:939 47:148 49:23 50:474 51:391 52:1426 54:349 55:1094 56:11 57:28 58:17 59:29 60:147 61:92 62:537 63:737 64:1964 65:1013 66:1972 67:1049 68:511 69:1191 70:444 71:171 72:758 74:987 75:309 76:245 77:399 78:311 79:265 80:327 81:384 82:760 83:203 84:345 85:568 86:250 87:195 88:284 89:688 90:105 91:913 92:671 93:425 94:858 95:433 96:275 97:49 98:410 99:245 100:22 101:21 102:455 103:1062 104:1606 105:168 106:74 107:1703 108:531 109:353 110:92 111:2477 112:1104 113:32 114:45 115:63 116:52 117:1448 118:70 119:69 120:1649 121:30 122:94 123:192 124:179 125:24 128:549 129:402 130:636 131:1049 132:578 133:222 134:497 135:124 136:673 137:499 138:1001 139:441 140:738 141:363 142:1180 143:868 144:402 145:143 146:665 147:478 148:979 149:729 150:210 151:786 152:669 153:176 154:1092 155:965 156:1154 157:438 158:599 159:757 160:614 161:693 162:1002 163:436 164:758 165:640 166:803 167:685 168:1522 169:154 170:1852 171:102 172:1294 173:796 174:290 175:124 176:407 177:884 178:680 179:861 180:36 181:2410 182:29 183:1489 184:448 185:3193 186:3226 187:1682 188:772 189:1875 190:6233 191:543 192:5074 193:1698 194:1079 195:958 196:747 197:1138 198:2697 199:5233 200:4353 201:3674 202:1006 203:799 204:2159 205:1826 206:1517 207:1734 208:1559 209:1953 210:492 211:513 212:998 213:704 214:947 215:40 216:2522 217:494 218:716 219:18 220:128 221:476 222:26 223:1506 End of report