IPv4 R&E Routing Table Report 20:15 GMT Thu 18 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: 277762 Prefixes after maximum aggregation (per Origin AS): 118663 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 141419 Number of IPv4 prefixes with a valid ROA: 129848 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 147704 Total ASes present in the Internet Routing Table: 20415 Prefixes per ASN: 13.61 Origin-only ASes present in the Internet Routing Table: 17605 Origin ASes announcing only one prefix: 7810 Transit ASes present in the Internet Routing Table: 2810 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: 355 Number of instances of unregistered ASNs: 384 Number of 32-bit ASNs allocated by the RIRs: 47458 Number of 32-bit ASNs visible in the Routing Table: 8147 Prefixes from 32-bit ASNs in the Routing Table: 33880 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: 91 Number of addresses announced to Internet: 1616570853 Equivalent to 96 /8s, 90 /16s and 233 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 87296 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 37293 Total APNIC prefixes after maximum aggregation: 7652 APNIC Deaggregation factor: 4.87 Prefixes being announced from the APNIC address blocks: 36219 Unique aggregates announced from the APNIC address blocks: 7693 APNIC Region origin ASes present in the Internet Routing Table: 1156 APNIC Prefixes per ASN: 31.33 APNIC Region origin ASes announcing only one prefix: 451 APNIC Region transit ASes present in the Internet Routing Table: 190 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 529 Number of APNIC addresses announced to Internet: 162272108 Equivalent to 9 /8s, 172 /16s and 19 /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: 126473 Total ARIN prefixes after maximum aggregation: 66131 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123920 Unique aggregates announced from the ARIN address blocks: 67578 ARIN Region origin ASes present in the Internet Routing Table: 9181 ARIN Prefixes per ASN: 13.50 ARIN Region origin ASes announcing only one prefix: 3810 ARIN Region transit ASes present in the Internet Routing Table: 854 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: 2166 Number of ARIN addresses announced to Internet: 1022330601 Equivalent to 60 /8s, 239 /16s and 134 /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: 46323 Total RIPE prefixes after maximum aggregation: 25700 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 48722 Unique aggregates announced from the RIPE address blocks: 36717 RIPE Region origin ASes present in the Internet Routing Table: 4457 RIPE Prefixes per ASN: 10.93 RIPE Region origin ASes announcing only one prefix: 1863 RIPE Region transit ASes present in the Internet Routing Table: 683 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1839 Number of RIPE addresses announced to Internet: 276758352 Equivalent to 16 /8s, 126 /16s and 255 /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: 56615 Total LACNIC prefixes after maximum aggregation: 16425 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54695 Unique aggregates announced from the LACNIC address blocks: 24285 LACNIC Region origin ASes present in the Internet Routing Table: 4503 LACNIC Prefixes per ASN: 12.15 LACNIC Region origin ASes announcing only one prefix: 1575 LACNIC Region transit ASes present in the Internet Routing Table: 892 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: 3452 Number of LACNIC addresses announced to Internet: 108846656 Equivalent to 6 /8s, 124 /16s and 222 /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: 10703 Total AfriNIC prefixes after maximum aggregation: 2493 AfriNIC Deaggregation factor: 4.29 Prefixes being announced from the AfriNIC address blocks: 14115 Unique aggregates announced from the AfriNIC address blocks: 5056 AfriNIC Region origin ASes present in the Internet Routing Table: 302 AfriNIC Prefixes per ASN: 46.74 AfriNIC Region origin ASes announcing only one prefix: 111 AfriNIC Region transit ASes present in the Internet Routing Table: 74 Average AfriNIC Region AS path length visible: 6.7 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: 46255104 Equivalent to 2 /8s, 193 /16s and 204 /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 13307 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3014 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1728 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1698 192 50 CMNET-HUNAN-AP China Mobile communication 24444 892 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 865 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 622 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 610 2169 462 SINET-AS Research Organization of Informa 132525 588 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 585 77 426 TPG-INTERNET-AP TPG Telecom Limited, AU 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 14409 40913 5390 AMAZON-02, US 22773 3938 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3024 235 1736 USDA-1, US 36352 2510 206 1170 AS-COLOCROSSING, US 367 2216 2485 1055 DNIC-ASBLK-00306-00371, US 6167 1932 4001 519 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1429 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 99 1014 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 795 1841 16 TE-AS TE-AS, EG 212238 690 50 614 CDNEXT, GB 34984 615 103 477 TELLCOM-AS, TR 8376 570 53 26 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 521 128 438 OPENTRANSIT, FR 25019 520 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 7112 2023 723 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1659 239 1206 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1184 371 22 Telefonica del Peru S.A.A., PE 26615 1010 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 808 278 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 1293 572 23 RAYA-AS, EG 24863 1052 389 23 LINKdotNET-AS, EG 37069 905 1096 13 MOBINIL, EG 36935 654 521 41 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36992 563 1069 299 ETISALAT-MISR, EG 36914 552 82 3 KENET-AS, KE 36903 480 216 340 MT-MPLS, MA 29571 478 98 69 ORANGE-COTE-IVOIRE, CI 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 14409 40913 5390 AMAZON-02, US 9808 13307 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7112 2023 723 UNINET, MX 22773 3938 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3024 235 1736 USDA-1, US 56046 3014 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2510 206 1170 AS-COLOCROSSING, US 367 2216 2485 1055 DNIC-ASBLK-00306-00371, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 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 13307 13189 CHINAMOBILE-CN China Mobile Communications Grou 8151 7112 6389 UNINET, MX 22773 3938 3625 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3014 2821 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56041 1728 1650 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1698 1648 CMNET-HUNAN-AP China Mobile communications corp 6167 1932 1413 CELLCO-PART, US 209 1648 1380 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 /11:51 /12:156 /13:214 /14:585 /15:1107 /16:7581 /17:3408 /18:4103 /19:7550 /20:12708 /21:15697 /22:28468 /23:29186 /24:166650 /25:66 /26:83 /27:50 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3849 7112 UNINET, MX 22773 2506 3938 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2447 14409 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1037 1399 BRIGHTSPEED, US 36352 995 2510 AS-COLOCROSSING, US 10620 970 1659 Telmex Colombia S.A., CO 209 958 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 ATLANTICBB-JOHNSTOWN, US 6167 847 1932 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:26 2:280 3:930 4:5 5:601 6:150 7:5 8:635 9:5 11:171 12:891 13:512 14:169 15:343 16:265 17:3 18:895 20:194 21:4 22:188 23:2566 24:682 27:55 29:19 31:484 32:12 34:10 35:180 36:3142 37:763 38:2432 39:714 40:93 41:1050 42:22 43:204 44:27 45:4304 46:978 47:115 49:20 50:472 51:384 52:1439 54:366 55:1094 56:11 57:28 58:19 59:36 60:90 61:59 62:535 63:768 64:1807 65:1077 66:1537 67:1069 68:368 69:1194 70:447 71:180 72:694 74:964 75:309 76:252 77:426 78:318 79:237 80:331 81:378 82:759 83:201 84:338 85:555 86:248 87:208 88:306 89:704 90:106 91:930 92:688 93:422 94:963 95:413 96:262 97:50 98:490 99:253 100:28 101:23 102:397 103:1073 104:1652 105:187 106:40 107:1547 108:526 109:388 110:102 111:2389 112:998 113:29 114:46 115:63 116:53 117:1359 118:73 119:73 120:1574 121:34 122:61 123:162 124:85 125:24 126:1 128:551 129:399 130:627 131:1064 132:568 133:221 134:481 135:121 136:679 137:500 138:1004 139:438 140:738 141:362 142:983 143:890 144:404 145:163 146:661 147:505 148:1008 149:646 150:203 151:850 152:525 153:180 154:1140 155:969 156:1230 157:437 158:601 159:723 160:599 161:687 162:1009 163:450 164:758 165:616 166:810 167:698 168:1510 169:161 170:1860 171:103 172:1300 173:803 174:363 175:109 176:451 177:922 178:619 179:897 180:39 181:2366 182:29 183:1383 184:456 185:3224 186:3108 187:1737 188:760 189:1753 190:6325 191:592 192:5144 193:1805 194:1135 195:931 196:774 197:1147 198:2715 199:5193 200:4465 201:3594 202:998 203:774 204:2168 205:1804 206:1585 207:1564 208:1557 209:1955 210:360 211:496 212:899 213:716 214:954 215:40 216:2482 217:473 218:644 219:18 220:85 221:471 222:24 223:1396 End of report