IPv4 R&E Routing Table Report 20:15 GMT Mon 29 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: 277563 Prefixes after maximum aggregation (per Origin AS): 118364 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 142149 Number of IPv4 prefixes with a valid ROA: 129955 Number of IPv4 prefixes with an invalid ROA: 211 Number of IPv4 prefixes with no ROA: 147397 Total ASes present in the Internet Routing Table: 20169 Prefixes per ASN: 13.76 Origin-only ASes present in the Internet Routing Table: 17419 Origin ASes announcing only one prefix: 7758 Transit ASes present in the Internet Routing Table: 2750 Transit-only ASes present in the Internet Routing Table: 666 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: 312 Number of instances of unregistered ASNs: 341 Number of 32-bit ASNs allocated by the RIRs: 47585 Number of 32-bit ASNs visible in the Routing Table: 8027 Prefixes from 32-bit ASNs in the Routing Table: 33539 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: 94 Number of addresses announced to Internet: 1612952613 Equivalent to 96 /8s, 35 /16s and 180 /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: 87033 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38363 Total APNIC prefixes after maximum aggregation: 7855 APNIC Deaggregation factor: 4.88 Prefixes being announced from the APNIC address blocks: 37312 Unique aggregates announced from the APNIC address blocks: 8028 APNIC Region origin ASes present in the Internet Routing Table: 1173 APNIC Prefixes per ASN: 31.81 APNIC Region origin ASes announcing only one prefix: 461 APNIC Region transit ASes present in the Internet Routing Table: 187 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: 530 Number of APNIC addresses announced to Internet: 163633388 Equivalent to 9 /8s, 192 /16s and 216 /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: 126850 Total ARIN prefixes after maximum aggregation: 66102 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124333 Unique aggregates announced from the ARIN address blocks: 67880 ARIN Region origin ASes present in the Internet Routing Table: 9204 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3837 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: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2176 Number of ARIN addresses announced to Internet: 1021796585 Equivalent to 60 /8s, 231 /16s and 96 /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: 45434 Total RIPE prefixes after maximum aggregation: 25054 RIPE Deaggregation factor: 1.81 Prefixes being announced from the RIPE address blocks: 47718 Unique aggregates announced from the RIPE address blocks: 35984 RIPE Region origin ASes present in the Internet Routing Table: 4276 RIPE Prefixes per ASN: 11.16 RIPE Region origin ASes announcing only one prefix: 1799 RIPE Region transit ASes present in the Internet Routing Table: 664 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: 1771 Number of RIPE addresses announced to Internet: 274518096 Equivalent to 16 /8s, 92 /16s and 208 /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: 56435 Total LACNIC prefixes after maximum aggregation: 16442 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54463 Unique aggregates announced from the LACNIC address blocks: 24377 LACNIC Region origin ASes present in the Internet Routing Table: 4427 LACNIC Prefixes per ASN: 12.30 LACNIC Region origin ASes announcing only one prefix: 1557 LACNIC Region transit ASes present in the Internet Routing Table: 867 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: 3396 Number of LACNIC addresses announced to Internet: 108424704 Equivalent to 6 /8s, 118 /16s and 110 /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: 10169 Total AfriNIC prefixes after maximum aggregation: 2654 AfriNIC Deaggregation factor: 3.83 Prefixes being announced from the AfriNIC address blocks: 13643 Unique aggregates announced from the AfriNIC address blocks: 5787 AfriNIC Region origin ASes present in the Internet Routing Table: 285 AfriNIC Prefixes per ASN: 47.87 AfriNIC Region origin ASes announcing only one prefix: 104 AfriNIC Region transit ASes present in the Internet Routing Table: 69 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: 154 Number of AfriNIC addresses announced to Internet: 44471040 Equivalent to 2 /8s, 166 /16s and 147 /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 13477 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1733 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1714 192 50 CMNET-HUNAN-AP China Mobile communication 24444 933 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 868 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 660 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 4780 619 272 204 SEEDNET Digital United Inc., TW 2907 611 2169 463 SINET-AS Research Organization of Informa 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 14341 40903 5413 AMAZON-02, US 22773 3948 3045 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3074 238 1709 USDA-1, US 36352 2513 206 1166 AS-COLOCROSSING, US 6167 1931 3992 512 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 367 1888 2171 883 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1431 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 1250 98 1013 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 799 1841 16 TE-AS TE-AS, EG 212238 707 52 626 CDNEXT, GB 34984 621 108 480 TELLCOM-AS, TR 8376 567 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 529 129 445 OPENTRANSIT, FR 25019 518 1296 129 SAUDINETSTC-AS, SA 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 7298 1964 788 UNINET, MX 11830 1985 369 64 Instituto Costarricense de Electricidad y 10620 1669 239 1207 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 23 Telefonica del Peru S.A.A., PE 26615 1010 2486 56 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 817 278 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 24863 990 389 22 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 24835 948 420 136 RAYA-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 82 3 KENET-AS, KE 36992 565 1072 299 ETISALAT-MISR, EG 36903 487 220 344 MT-MPLS, MA 29571 478 98 68 ORANGE-COTE-IVOIRE, CI 36935 442 116 132 Vodafone-, EG 2018 376 318 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 14341 40903 5413 AMAZON-02, US 9808 13477 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7298 1964 788 UNINET, MX 22773 3948 3045 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3074 238 1709 USDA-1, US 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1166 AS-COLOCROSSING, US 11830 1985 369 64 Instituto Costarricense de Electricidad y 6167 1931 3992 512 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 13477 13359 CHINAMOBILE-CN China Mobile Communications Grou 8151 7298 6510 UNINET, MX 22773 3948 3634 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3056 2863 CMNET-JIANGSU-AP China Mobile communications co 11830 1985 1921 Instituto Costarricense de Electricidad y Telec 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1714 1664 CMNET-HUNAN-AP China Mobile communications corp 56041 1733 1655 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1931 1419 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 /11:50 /12:159 /13:214 /14:583 /15:1103 /16:7570 /17:3416 /18:4114 /19:7598 /20:12487 /21:15743 /22:27858 /23:28847 /24:167537 /25:56 /26:80 /27:49 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3955 7298 UNINET, MX 22773 2512 3948 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2426 14341 AMAZON-02, US 11830 1689 1985 Instituto Costarricense de Electricidad y Telecom., CR 19901 1044 1419 BRIGHTSPEED, US 36352 992 2513 AS-COLOCROSSING, US 10620 980 1669 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 ATLANTICBB-JOHNSTOWN, US 6167 848 1931 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:300 3:937 4:5 5:576 6:157 7:5 8:626 9:5 11:171 12:889 13:494 14:169 15:343 16:268 17:3 18:897 20:195 21:4 22:188 23:2558 24:679 27:54 29:19 31:465 32:13 34:11 35:180 36:3174 37:794 38:2493 39:730 40:93 41:1068 42:21 43:201 44:27 45:4312 46:971 47:117 49:21 50:478 51:388 52:1436 54:354 55:1089 56:11 57:29 58:17 59:30 60:146 61:93 62:529 63:761 64:1828 65:1067 66:1563 67:1065 68:391 69:1196 70:449 71:178 72:701 74:979 75:307 76:248 77:404 78:309 79:234 80:316 81:366 82:739 83:203 84:334 85:564 86:245 87:187 88:298 89:667 90:106 91:909 92:670 93:449 94:937 95:404 96:263 97:50 98:481 99:255 100:28 101:20 102:411 103:1092 104:1668 105:174 106:71 107:1544 108:523 109:375 110:134 111:2437 112:1041 113:33 114:46 115:63 116:58 117:1418 118:66 119:93 120:1608 121:34 122:94 123:186 124:178 125:26 126:1 128:555 129:400 130:640 131:1059 132:562 133:221 134:482 135:121 136:681 137:503 138:1006 139:461 140:730 141:373 142:982 143:878 144:407 145:163 146:656 147:517 148:995 149:654 150:201 151:860 152:574 153:177 154:1184 155:933 156:1229 157:440 158:588 159:730 160:598 161:711 162:1009 163:443 164:751 165:616 166:815 167:692 168:1527 169:148 170:1870 171:103 172:1345 173:800 174:365 175:129 176:432 177:919 178:621 179:893 180:69 181:2343 182:27 183:1429 184:449 185:3115 186:3100 187:1681 188:761 189:1878 190:6303 191:585 192:5088 193:1699 194:1030 195:887 196:756 197:1129 198:2718 199:5237 200:4425 201:3687 202:1002 203:790 204:2172 205:1814 206:1635 207:1588 208:1571 209:1973 210:510 211:507 212:954 213:714 214:950 215:40 216:2508 217:455 218:708 219:18 220:127 221:473 222:26 223:1452 End of report