IPv4 R&E Routing Table Report 20:15 GMT Thu 09 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: 278955 Prefixes after maximum aggregation (per Origin AS): 118102 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 141534 Number of IPv4 prefixes with a valid ROA: 131190 Number of IPv4 prefixes with an invalid ROA: 213 Number of IPv4 prefixes with no ROA: 147552 Total ASes present in the Internet Routing Table: 20053 Prefixes per ASN: 13.91 Origin-only ASes present in the Internet Routing Table: 17311 Origin ASes announcing only one prefix: 7719 Transit ASes present in the Internet Routing Table: 2742 Transit-only ASes present in the Internet Routing Table: 671 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: 317 Number of instances of unregistered ASNs: 346 Number of 32-bit ASNs allocated by the RIRs: 47652 Number of 32-bit ASNs visible in the Routing Table: 7923 Prefixes from 32-bit ASNs in the Routing Table: 32827 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 107 Number of addresses announced to Internet: 1611436709 Equivalent to 96 /8s, 12 /16s and 146 /24s Percentage of available address space announced: 43.5 Percentage of allocated address space announced: 43.5 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: 87813 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38670 Total APNIC prefixes after maximum aggregation: 7906 APNIC Deaggregation factor: 4.89 Prefixes being announced from the APNIC address blocks: 37666 Unique aggregates announced from the APNIC address blocks: 8265 APNIC Region origin ASes present in the Internet Routing Table: 1155 APNIC Prefixes per ASN: 32.61 APNIC Region origin ASes announcing only one prefix: 445 APNIC Region transit ASes present in the Internet Routing Table: 186 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: 523 Number of APNIC addresses announced to Internet: 164421996 Equivalent to 9 /8s, 204 /16s and 225 /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: 126630 Total ARIN prefixes after maximum aggregation: 65984 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124044 Unique aggregates announced from the ARIN address blocks: 67417 ARIN Region origin ASes present in the Internet Routing Table: 9203 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3847 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: 2179 Number of ARIN addresses announced to Internet: 1019663593 Equivalent to 60 /8s, 198 /16s and 212 /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: 46659 Total RIPE prefixes after maximum aggregation: 25058 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 49067 Unique aggregates announced from the RIPE address blocks: 35948 RIPE Region origin ASes present in the Internet Routing Table: 4258 RIPE Prefixes per ASN: 11.52 RIPE Region origin ASes announcing only one prefix: 1788 RIPE Region transit ASes present in the Internet Routing Table: 670 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: 1755 Number of RIPE addresses announced to Internet: 274508880 Equivalent to 16 /8s, 92 /16s and 172 /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: 56320 Total LACNIC prefixes after maximum aggregation: 16268 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 54372 Unique aggregates announced from the LACNIC address blocks: 23992 LACNIC Region origin ASes present in the Internet Routing Table: 4338 LACNIC Prefixes per ASN: 12.53 LACNIC Region origin ASes announcing only one prefix: 1535 LACNIC Region transit ASes present in the Internet Routing Table: 846 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: 3305 Number of LACNIC addresses announced to Internet: 108189184 Equivalent to 6 /8s, 114 /16s and 214 /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: 10359 Total AfriNIC prefixes after maximum aggregation: 2630 AfriNIC Deaggregation factor: 3.94 Prefixes being announced from the AfriNIC address blocks: 13699 Unique aggregates announced from the AfriNIC address blocks: 5810 AfriNIC Region origin ASes present in the Internet Routing Table: 294 AfriNIC Prefixes per ASN: 46.60 AfriNIC Region origin ASes announcing only one prefix: 104 AfriNIC Region transit ASes present in the Internet Routing Table: 74 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: 161 Number of AfriNIC addresses announced to Internet: 44541184 Equivalent to 2 /8s, 167 /16s and 165 /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 13503 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1734 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 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 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 14354 40999 5380 AMAZON-02, US 22773 4011 3051 361 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3114 241 1737 USDA-1, US 36352 2562 209 1173 AS-COLOCROSSING, US 6167 1947 4036 513 CELLCO-PART, US 11776 1906 259 215 ATLANTICBB-JOHNSTOWN, US 367 1872 2131 877 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1440 680 717 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 39891 1934 129 48 ALJAWWALSTC-AS, SA 20940 1237 97 1008 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 25019 862 1304 131 SAUDINETSTC-AS, SA 8452 808 1841 16 TE-AS TE-AS, EG 212238 726 54 644 CDNEXT, GB 34984 619 105 477 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 563 53 25 Jordan Data Communications, JO 5511 524 129 441 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 7247 1960 783 UNINET, MX 11830 1987 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 1240 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1179 371 23 Telefonica del Peru S.A.A., PE 26615 1009 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 1211 385 94 RAYA-AS, EG 24863 1016 389 22 LINKdotNET-AS, EG 37069 961 1096 13 MOBINIL, EG 36992 593 1091 304 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 562 82 3 KENET-AS, KE 29571 480 98 67 ORANGE-COTE-IVOIRE, CI 36903 463 208 334 MT-MPLS, MA 2018 376 318 69 TENET-1, ZA 37693 344 599 42 TUNISIANA, TN 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 14354 40999 5380 AMAZON-02, US 9808 13503 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7247 1960 783 UNINET, MX 22773 4011 3051 361 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3114 241 1737 USDA-1, US 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2562 209 1173 AS-COLOCROSSING, US 11830 1987 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 13503 13384 CHINAMOBILE-CN China Mobile Communications Grou 8151 7247 6464 UNINET, MX 22773 4011 3650 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3056 2863 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1934 1886 ALJAWWALSTC-AS, SA 11776 1906 1691 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1734 1656 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1947 1434 CELLCO-PART, 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 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: 1299 TWELVE99 Arelion, fka Telia Carrier, SE 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 /13:215 /14:583 /15:1097 /16:7566 /17:3416 /18:4110 /19:7662 /20:12814 /21:15794 /22:28190 /23:28944 /24:168063 /25:64 /26:81 /27:48 /28:18 /29:8 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3920 7247 UNINET, MX 22773 2523 4011 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2415 14354 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1079 1934 ALJAWWALSTC-AS, SA 19901 1056 1440 BRIGHTSPEED, US 36352 1041 2562 AS-COLOCROSSING, US 10620 980 1669 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 911 1240 Techtel LMDS Comunicaciones Interactivas S.A., AR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:483 3:941 4:5 5:757 6:157 7:5 8:627 9:5 11:171 12:884 13:511 14:171 15:343 16:274 17:3 18:901 20:195 21:4 22:188 23:2553 24:685 27:56 29:19 31:470 32:13 34:11 35:180 36:3178 37:863 38:2483 39:730 40:93 41:1011 42:145 43:196 44:27 45:4202 46:983 47:116 49:45 50:474 51:391 52:1441 54:352 55:1183 56:11 57:29 58:17 59:27 60:147 61:92 62:546 63:756 64:1932 65:1024 66:1631 67:1080 68:386 69:1143 70:442 71:179 72:756 74:983 75:308 76:246 77:397 78:296 79:232 80:297 81:378 82:742 83:198 84:337 85:516 86:245 87:184 88:303 89:689 90:105 91:894 92:664 93:419 94:967 95:688 96:264 97:50 98:494 99:242 100:30 101:20 102:428 103:1071 104:1616 105:174 106:74 107:1580 108:525 109:352 110:107 111:2442 112:1045 113:31 114:32 115:63 116:58 117:1419 118:67 119:69 120:1622 121:30 122:94 123:191 124:178 125:26 128:552 129:402 130:628 131:1061 132:578 133:222 134:485 135:125 136:669 137:496 138:999 139:458 140:727 141:355 142:1109 143:869 144:402 145:161 146:654 147:485 148:977 149:657 150:208 151:787 152:657 153:177 154:1188 155:898 156:1162 157:436 158:583 159:756 160:607 161:702 162:997 163:441 164:749 165:614 166:809 167:678 168:1497 169:153 170:1844 171:99 172:1287 173:803 174:367 175:135 176:441 177:865 178:684 179:885 180:36 181:2383 182:28 183:1458 184:450 185:3169 186:3226 187:1674 188:773 189:1878 190:6322 191:549 192:5083 193:1707 194:1012 195:920 196:745 197:1134 198:2692 199:5232 200:4400 201:3652 202:1003 203:793 204:2147 205:1820 206:1538 207:1591 208:1541 209:1931 210:490 211:509 212:971 213:715 214:953 215:40 216:2424 217:451 218:709 219:18 220:124 221:473 222:26 223:1461 End of report