IPv4 R&E Routing Table Report 20:15 GMT Tue 30 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: 280010 Prefixes after maximum aggregation (per Origin AS): 119146 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 143075 Number of IPv4 prefixes with a valid ROA: 131129 Number of IPv4 prefixes with an invalid ROA: 212 Number of IPv4 prefixes with no ROA: 148669 Total ASes present in the Internet Routing Table: 20672 Prefixes per ASN: 13.55 Origin-only ASes present in the Internet Routing Table: 17805 Origin ASes announcing only one prefix: 7879 Transit ASes present in the Internet Routing Table: 2867 Transit-only ASes present in the Internet Routing Table: 681 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: 320 Number of instances of unregistered ASNs: 349 Number of 32-bit ASNs allocated by the RIRs: 47586 Number of 32-bit ASNs visible in the Routing Table: 8457 Prefixes from 32-bit ASNs in the Routing Table: 35243 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: 97 Number of addresses announced to Internet: 1614502437 Equivalent to 96 /8s, 59 /16s and 90 /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: 87814 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38204 Total APNIC prefixes after maximum aggregation: 7781 APNIC Deaggregation factor: 4.91 Prefixes being announced from the APNIC address blocks: 37266 Unique aggregates announced from the APNIC address blocks: 8002 APNIC Region origin ASes present in the Internet Routing Table: 1157 APNIC Prefixes per ASN: 32.21 APNIC Region origin ASes announcing only one prefix: 452 APNIC Region transit ASes present in the Internet Routing Table: 183 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: 521 Number of APNIC addresses announced to Internet: 163610348 Equivalent to 9 /8s, 192 /16s and 126 /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: 126698 Total ARIN prefixes after maximum aggregation: 66158 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124213 Unique aggregates announced from the ARIN address blocks: 67800 ARIN Region origin ASes present in the Internet Routing Table: 9216 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3840 ARIN Region transit ASes present in the Internet Routing Table: 848 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: 1021836777 Equivalent to 60 /8s, 231 /16s and 253 /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: 45771 Total RIPE prefixes after maximum aggregation: 25196 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 48031 Unique aggregates announced from the RIPE address blocks: 36217 RIPE Region origin ASes present in the Internet Routing Table: 4304 RIPE Prefixes per ASN: 11.16 RIPE Region origin ASes announcing only one prefix: 1807 RIPE Region transit ASes present in the Internet Routing Table: 673 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: 1782 Number of RIPE addresses announced to Internet: 274773584 Equivalent to 16 /8s, 96 /16s and 182 /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: 58434 Total LACNIC prefixes after maximum aggregation: 17125 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 56470 Unique aggregates announced from the LACNIC address blocks: 25206 LACNIC Region origin ASes present in the Internet Routing Table: 4886 LACNIC Prefixes per ASN: 11.56 LACNIC Region origin ASes announcing only one prefix: 1675 LACNIC Region transit ASes present in the Internet Routing Table: 972 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: 3821 Number of LACNIC addresses announced to Internet: 109209344 Equivalent to 6 /8s, 130 /16s and 103 /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: 10583 Total AfriNIC prefixes after maximum aggregation: 2625 AfriNIC Deaggregation factor: 4.03 Prefixes being announced from the AfriNIC address blocks: 13933 Unique aggregates announced from the AfriNIC address blocks: 5754 AfriNIC Region origin ASes present in the Internet Routing Table: 287 AfriNIC Prefixes per ASN: 48.55 AfriNIC Region origin ASes announcing only one prefix: 105 AfriNIC Region transit ASes present in the Internet Routing Table: 70 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: 157 Number of AfriNIC addresses announced to Internet: 44961024 Equivalent to 2 /8s, 174 /16s and 13 /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 13474 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3055 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 14268 40896 5411 AMAZON-02, US 22773 3948 3045 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3077 238 1705 USDA-1, US 36352 2512 206 1165 AS-COLOCROSSING, US 6167 1931 3992 512 CELLCO-PART, US 11776 1896 259 215 ATLANTICBB-JOHNSTOWN, US 367 1881 2139 879 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 1251 98 1013 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 797 1841 16 TE-AS TE-AS, EG 212238 708 52 627 CDNEXT, GB 34984 622 108 481 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 566 53 25 Jordan Data Communications, JO 5511 529 129 445 OPENTRANSIT, FR 25019 521 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 786 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1668 239 1206 Telmex Colombia S.A., CO 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1176 371 23 Telefonica del Peru S.A.A., PE 26615 1010 2486 56 TIM SA, BR 18881 890 1127 31 TELEFONICA BRASIL S.A, BR 11664 818 278 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 1264 463 99 RAYA-AS, EG 24863 1017 389 22 LINKdotNET-AS, EG 37069 941 1096 13 MOBINIL, EG 36992 639 1151 304 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 570 82 3 KENET-AS, KE 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 14268 40896 5411 AMAZON-02, US 9808 13474 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7298 1964 786 UNINET, MX 22773 3948 3045 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3077 238 1705 USDA-1, US 56046 3055 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2512 206 1165 AS-COLOCROSSING, US 11830 1989 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 13474 13356 CHINAMOBILE-CN China Mobile Communications Grou 8151 7298 6512 UNINET, MX 22773 3948 3634 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3055 2862 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 11776 1896 1681 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 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 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 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 /16:7567 /17:3421 /18:4141 /19:7609 /20:12516 /21:15854 /22:28558 /23:29370 /24:168573 /25:64 /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 3957 7298 UNINET, MX 22773 2512 3948 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2399 14268 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1048 1423 BRIGHTSPEED, US 36352 991 2512 AS-COLOCROSSING, US 10620 979 1668 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 876 1896 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 2:290 3:941 4:5 5:585 6:157 7:5 8:633 9:5 11:171 12:888 13:478 14:171 15:343 16:268 17:3 18:897 20:178 21:4 22:188 23:2558 24:684 27:54 29:19 31:465 32:13 34:11 35:180 36:3173 37:831 38:2495 39:730 40:93 41:1066 42:21 43:198 44:28 45:4528 46:969 47:117 49:21 50:477 51:388 52:1434 54:352 55:1089 56:11 57:29 58:17 59:30 60:146 61:93 62:531 63:762 64:1818 65:1070 66:1580 67:1065 68:377 69:1197 70:446 71:178 72:708 74:985 75:307 76:248 77:402 78:314 79:234 80:327 81:367 82:743 83:218 84:345 85:563 86:246 87:205 88:298 89:668 90:106 91:921 92:667 93:446 94:980 95:408 96:263 97:50 98:446 99:231 100:28 101:20 102:415 103:1078 104:1668 105:175 106:71 107:1544 108:524 109:379 110:134 111:2437 112:1042 113:37 114:39 115:64 116:59 117:1418 118:66 119:116 120:1608 121:31 122:93 123:186 124:178 125:26 126:1 128:555 129:403 130:637 131:1073 132:566 133:221 134:486 135:121 136:681 137:503 138:1049 139:461 140:727 141:372 142:984 143:892 144:405 145:163 146:654 147:518 148:968 149:661 150:206 151:861 152:668 153:176 154:1148 155:933 156:1186 157:438 158:590 159:728 160:605 161:751 162:1025 163:443 164:758 165:614 166:814 167:702 168:1559 169:157 170:1936 171:103 172:1314 173:799 174:364 175:127 176:437 177:1044 178:625 179:941 180:69 181:2367 182:27 183:1429 184:449 185:3152 186:3131 187:1727 188:766 189:1898 190:6324 191:633 192:5092 193:1706 194:1036 195:882 196:759 197:1159 198:2717 199:5228 200:4463 201:3730 202:995 203:802 204:2174 205:1815 206:1644 207:1588 208:1546 209:1972 210:510 211:507 212:954 213:717 214:953 215:40 216:2484 217:458 218:709 219:18 220:128 221:473 222:26 223:1450 End of report