IPv4 R&E Routing Table Report 20:15 GMT Tue 14 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: 277810 Prefixes after maximum aggregation (per Origin AS): 118286 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 141312 Number of IPv4 prefixes with a valid ROA: 129549 Number of IPv4 prefixes with an invalid ROA: 211 Number of IPv4 prefixes with no ROA: 148050 Total ASes present in the Internet Routing Table: 20325 Prefixes per ASN: 13.67 Origin-only ASes present in the Internet Routing Table: 17544 Origin ASes announcing only one prefix: 7857 Transit ASes present in the Internet Routing Table: 2781 Transit-only ASes present in the Internet Routing Table: 683 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: 315 Number of instances of unregistered ASNs: 381 Number of 32-bit ASNs allocated by the RIRs: 47697 Number of 32-bit ASNs visible in the Routing Table: 8021 Prefixes from 32-bit ASNs in the Routing Table: 33008 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: 100 Number of addresses announced to Internet: 1611330469 Equivalent to 96 /8s, 10 /16s and 243 /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: 87030 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38825 Total APNIC prefixes after maximum aggregation: 7890 APNIC Deaggregation factor: 4.92 Prefixes being announced from the APNIC address blocks: 37839 Unique aggregates announced from the APNIC address blocks: 8242 APNIC Region origin ASes present in the Internet Routing Table: 1162 APNIC Prefixes per ASN: 32.56 APNIC Region origin ASes announcing only one prefix: 450 APNIC Region transit ASes present in the Internet Routing Table: 188 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: 527 Number of APNIC addresses announced to Internet: 164420460 Equivalent to 9 /8s, 204 /16s and 219 /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: 126317 Total ARIN prefixes after maximum aggregation: 65722 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 123765 Unique aggregates announced from the ARIN address blocks: 67327 ARIN Region origin ASes present in the Internet Routing Table: 9180 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3835 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: 2174 Number of ARIN addresses announced to Internet: 1019655401 Equivalent to 60 /8s, 198 /16s and 180 /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: 45384 Total RIPE prefixes after maximum aggregation: 25492 RIPE Deaggregation factor: 1.78 Prefixes being announced from the RIPE address blocks: 47871 Unique aggregates announced from the RIPE address blocks: 35981 RIPE Region origin ASes present in the Internet Routing Table: 4520 RIPE Prefixes per ASN: 10.59 RIPE Region origin ASes announcing only one prefix: 1917 RIPE Region transit ASes present in the Internet Routing Table: 697 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: 1858 Number of RIPE addresses announced to Internet: 274083152 Equivalent to 16 /8s, 86 /16s and 45 /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: 56443 Total LACNIC prefixes after maximum aggregation: 16258 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 54479 Unique aggregates announced from the LACNIC address blocks: 23794 LACNIC Region origin ASes present in the Internet Routing Table: 4344 LACNIC Prefixes per ASN: 12.54 LACNIC Region origin ASes announcing only one prefix: 1544 LACNIC Region transit ASes present in the Internet Routing Table: 844 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: 3295 Number of LACNIC addresses announced to Internet: 108513024 Equivalent to 6 /8s, 119 /16s and 199 /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: 10526 Total AfriNIC prefixes after maximum aggregation: 2671 AfriNIC Deaggregation factor: 3.94 Prefixes being announced from the AfriNIC address blocks: 13756 Unique aggregates announced from the AfriNIC address blocks: 5873 AfriNIC Region origin ASes present in the Internet Routing Table: 304 AfriNIC Prefixes per ASN: 45.25 AfriNIC Region origin ASes announcing only one prefix: 111 AfriNIC Region transit ASes present in the Internet Routing Table: 78 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: 167 Number of AfriNIC addresses announced to Internet: 44549120 Equivalent to 2 /8s, 167 /16s and 196 /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 13627 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3076 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1740 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1713 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 673 497 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 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 14288 40987 5356 AMAZON-02, US 22773 4108 3058 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3118 242 1746 USDA-1, US 36352 2554 208 1165 AS-COLOCROSSING, US 6167 1950 4046 511 CELLCO-PART, US 11776 1906 259 215 ATLANTICBB-JOHNSTOWN, US 367 1875 2132 877 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1439 682 724 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 1231 96 1005 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 821 1841 16 TE-AS TE-AS, EG 212238 725 53 643 CDNEXT, GB 34984 618 105 476 TELLCOM-AS, TR 8376 567 53 26 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 524 129 441 OPENTRANSIT, FR 58224 434 270 355 TCI, IR 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 7338 2015 796 UNINET, MX 11830 1988 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, 6147 1271 371 23 Telefonica del Peru S.A.A., PE 11664 1245 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1012 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 1208 378 94 RAYA-AS, EG 24863 1008 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 374 318 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 14288 40987 5356 AMAZON-02, US 9808 13627 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7338 2015 796 UNINET, MX 22773 4108 3058 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3118 242 1746 USDA-1, US 56046 3076 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 13627 13508 CHINAMOBILE-CN China Mobile Communications Grou 8151 7338 6542 UNINET, MX 22773 4108 3744 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3076 2883 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 11776 1906 1691 ATLANTICBB-JOHNSTOWN, US 56047 1713 1663 CMNET-HUNAN-AP China Mobile communications corp 56041 1740 1662 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 /10:30 /11:50 /12:158 /13:214 /14:585 /15:1097 /16:7560 /17:3416 /18:4130 /19:7666 /20:12144 /21:15862 /22:28349 /23:28836 /24:167448 /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 3973 7338 UNINET, MX 22773 2586 4108 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2393 14288 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 19901 1055 1439 BRIGHTSPEED, US 36352 1038 2554 AS-COLOCROSSING, US 10620 980 1669 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11664 916 1245 Techtel LMDS Comunicaciones Interactivas S.A., AR 11776 885 1906 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 3:936 4:5 5:611 6:157 7:5 8:624 9:5 11:171 12:876 13:504 14:172 15:344 16:274 17:3 18:899 20:196 21:4 22:188 23:2590 24:688 27:56 29:19 31:470 32:13 34:10 35:181 36:3183 37:576 38:2476 39:747 40:94 41:1049 42:145 43:201 44:28 45:4210 46:1006 47:146 49:22 50:471 51:391 52:1440 54:352 55:1089 56:11 57:28 58:17 59:29 60:147 61:92 62:539 63:758 64:1800 65:1014 66:1557 67:996 68:389 69:1161 70:444 71:171 72:761 74:973 75:310 76:245 77:403 78:308 79:265 80:329 81:386 82:749 83:202 84:340 85:551 86:247 87:196 88:291 89:702 90:105 91:920 92:668 93:429 94:857 95:445 96:265 97:50 98:407 99:245 100:23 101:20 102:463 103:1068 104:1616 105:174 106:74 107:1639 108:529 109:360 110:92 111:2470 112:1099 113:32 114:43 115:63 116:60 117:1450 118:67 119:69 120:1638 121:29 122:94 123:192 124:179 125:26 128:551 129:402 130:634 131:1064 132:578 133:222 134:496 135:124 136:671 137:507 138:1008 139:450 140:738 141:360 142:1186 143:858 144:405 145:143 146:642 147:485 148:984 149:647 150:206 151:783 152:661 153:175 154:1118 155:895 156:1155 157:435 158:597 159:757 160:615 161:699 162:1005 163:439 164:762 165:629 166:804 167:679 168:1506 169:155 170:1857 171:100 172:1297 173:787 174:290 175:124 176:403 177:872 178:676 179:871 180:36 181:2394 182:28 183:1479 184:443 185:3293 186:3225 187:1717 188:781 189:1861 190:6279 191:547 192:5056 193:1736 194:1073 195:966 196:746 197:1135 198:2685 199:5233 200:4390 201:3665 202:1008 203:800 204:2152 205:1804 206:1521 207:1600 208:1536 209:1936 210:492 211:511 212:1001 213:709 214:951 215:40 216:2433 217:499 218:716 219:18 220:128 221:475 222:26 223:1497 End of report