IPv4 R&E Routing Table Report 20:15 GMT Wed 01 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: 277179 Prefixes after maximum aggregation (per Origin AS): 118571 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 141700 Number of IPv4 prefixes with a valid ROA: 129357 Number of IPv4 prefixes with an invalid ROA: 214 Number of IPv4 prefixes with no ROA: 147608 Total ASes present in the Internet Routing Table: 20277 Prefixes per ASN: 13.67 Origin-only ASes present in the Internet Routing Table: 17483 Origin ASes announcing only one prefix: 7779 Transit ASes present in the Internet Routing Table: 2794 Transit-only ASes present in the Internet Routing Table: 676 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: 47597 Number of 32-bit ASNs visible in the Routing Table: 8125 Prefixes from 32-bit ASNs in the Routing Table: 33164 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: 96 Number of addresses announced to Internet: 1614118053 Equivalent to 96 /8s, 53 /16s and 124 /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: 86477 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38378 Total APNIC prefixes after maximum aggregation: 7838 APNIC Deaggregation factor: 4.90 Prefixes being announced from the APNIC address blocks: 37345 Unique aggregates announced from the APNIC address blocks: 8024 APNIC Region origin ASes present in the Internet Routing Table: 1155 APNIC Prefixes per ASN: 32.33 APNIC Region origin ASes announcing only one prefix: 444 APNIC Region transit ASes present in the Internet Routing Table: 184 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: 517 Number of APNIC addresses announced to Internet: 163726444 Equivalent to 9 /8s, 194 /16s and 68 /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: 126872 Total ARIN prefixes after maximum aggregation: 66402 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 124170 Unique aggregates announced from the ARIN address blocks: 67774 ARIN Region origin ASes present in the Internet Routing Table: 9225 ARIN Prefixes per ASN: 13.46 ARIN Region origin ASes announcing only one prefix: 3840 ARIN Region transit ASes present in the Internet Routing Table: 853 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: 2180 Number of ARIN addresses announced to Internet: 1021844969 Equivalent to 60 /8s, 232 /16s and 29 /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: 44708 Total RIPE prefixes after maximum aggregation: 24792 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 47164 Unique aggregates announced from the RIPE address blocks: 35462 RIPE Region origin ASes present in the Internet Routing Table: 4248 RIPE Prefixes per ASN: 11.10 RIPE Region origin ASes announcing only one prefix: 1785 RIPE Region transit ASes present in the Internet Routing Table: 665 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: 1762 Number of RIPE addresses announced to Internet: 274762064 Equivalent to 16 /8s, 96 /16s and 137 /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: 56318 Total LACNIC prefixes after maximum aggregation: 16632 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 54424 Unique aggregates announced from the LACNIC address blocks: 24542 LACNIC Region origin ASes present in the Internet Routing Table: 4550 LACNIC Prefixes per ASN: 11.96 LACNIC Region origin ASes announcing only one prefix: 1608 LACNIC Region transit ASes present in the Internet Routing Table: 895 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: 3512 Number of LACNIC addresses announced to Internet: 108588800 Equivalent to 6 /8s, 120 /16s and 239 /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: 10591 Total AfriNIC prefixes after maximum aggregation: 2650 AfriNIC Deaggregation factor: 4.00 Prefixes being announced from the AfriNIC address blocks: 13980 Unique aggregates announced from the AfriNIC address blocks: 5803 AfriNIC Region origin ASes present in the Internet Routing Table: 285 AfriNIC Prefixes per ASN: 49.05 AfriNIC Region origin ASes announcing only one prefix: 102 AfriNIC Region transit ASes present in the Internet Routing Table: 71 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: 45086464 Equivalent to 2 /8s, 175 /16s and 247 /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 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 14282 40897 5385 AMAZON-02, US 22773 3970 3049 335 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3076 238 1716 USDA-1, US 36352 2513 206 1166 AS-COLOCROSSING, US 6167 1939 4008 516 CELLCO-PART, US 11776 1885 259 215 ATLANTICBB-JOHNSTOWN, US 367 1879 2139 877 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 1254 99 1016 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 798 1841 16 TE-AS TE-AS, EG 212238 711 52 630 CDNEXT, GB 34984 622 108 481 TELLCOM-AS, TR 8376 567 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 531 129 447 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 6873 1942 804 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 1177 371 23 Telefonica del Peru S.A.A., PE 26615 1010 2486 56 TIM SA, BR 18881 891 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 995 389 22 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36992 656 1140 314 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 571 82 3 KENET-AS, KE 36903 487 220 344 MT-MPLS, MA 29571 479 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 14282 40897 5385 AMAZON-02, US 9808 13474 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 6873 1942 804 UNINET, MX 22773 3970 3049 335 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3076 238 1716 USDA-1, US 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1166 AS-COLOCROSSING, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 6167 1939 4008 516 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 6873 6069 UNINET, MX 22773 3970 3635 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3056 2863 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 11776 1885 1670 ATLANTICBB-JOHNSTOWN, US 56047 1714 1664 CMNET-HUNAN-AP China Mobile communications corp 56041 1733 1655 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1939 1423 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 /17:3420 /18:4160 /19:7619 /20:12533 /21:15672 /22:28211 /23:28886 /24:166707 /25:65 /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 3752 6873 UNINET, MX 22773 2523 3970 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2402 14282 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1051 1429 BRIGHTSPEED, US 36352 992 2513 AS-COLOCROSSING, US 10620 979 1668 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 865 1885 ATLANTICBB-JOHNSTOWN, US 6167 848 1939 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 2:292 3:938 4:5 5:573 6:156 7:5 8:628 9:5 11:171 12:887 13:503 14:171 15:343 16:268 17:3 18:899 20:195 21:4 22:188 23:2552 24:684 27:54 29:19 31:464 32:13 34:10 35:180 36:3171 37:777 38:2481 39:730 40:93 41:1062 42:21 43:200 44:31 45:4315 46:965 47:114 49:21 50:475 51:388 52:1431 54:351 55:1177 56:11 57:29 58:17 59:30 60:147 61:92 62:535 63:760 64:1865 65:1029 66:1576 67:1092 68:381 69:1164 70:446 71:178 72:711 74:973 75:307 76:245 77:393 78:296 79:229 80:313 81:350 82:751 83:198 84:334 85:490 86:243 87:185 88:297 89:666 90:105 91:896 92:654 93:415 94:919 95:404 96:263 97:50 98:503 99:231 100:30 101:22 102:411 103:1070 104:1634 105:175 106:71 107:1546 108:525 109:337 110:105 111:2437 112:1041 113:32 114:40 115:63 116:58 117:1418 118:68 119:68 120:1608 121:31 122:93 123:189 124:178 125:26 126:1 128:555 129:403 130:614 131:1071 132:568 133:221 134:485 135:122 136:670 137:504 138:1025 139:454 140:727 141:370 142:980 143:895 144:406 145:160 146:654 147:502 148:971 149:674 150:203 151:791 152:668 153:177 154:1202 155:884 156:1229 157:437 158:589 159:727 160:598 161:695 162:1017 163:447 164:750 165:622 166:813 167:680 168:1535 169:154 170:1886 171:102 172:1301 173:817 174:371 175:130 176:426 177:949 178:642 179:905 180:37 181:2329 182:27 183:1434 184:448 185:3104 186:3035 187:1647 188:750 189:1764 190:6293 191:542 192:5091 193:1714 194:1028 195:875 196:762 197:1132 198:2706 199:5217 200:4446 201:3686 202:996 203:796 204:2152 205:1814 206:1534 207:1589 208:1556 209:1965 210:512 211:509 212:960 213:715 214:948 215:40 216:2418 217:466 218:708 219:18 220:128 221:473 222:26 223:1449 End of report