IPv4 R&E Routing Table Report 20:15 GMT Thu 25 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: 278522 Prefixes after maximum aggregation (per Origin AS): 118374 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 141094 Number of IPv4 prefixes with a valid ROA: 130292 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 148020 Total ASes present in the Internet Routing Table: 20253 Prefixes per ASN: 13.75 Origin-only ASes present in the Internet Routing Table: 17487 Origin ASes announcing only one prefix: 7788 Transit ASes present in the Internet Routing Table: 2766 Transit-only ASes present in the Internet Routing Table: 665 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: 340 Number of instances of unregistered ASNs: 369 Number of 32-bit ASNs allocated by the RIRs: 47551 Number of 32-bit ASNs visible in the Routing Table: 8086 Prefixes from 32-bit ASNs in the Routing Table: 33549 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: 95 Number of addresses announced to Internet: 1615057573 Equivalent to 96 /8s, 67 /16s and 210 /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: 87365 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38425 Total APNIC prefixes after maximum aggregation: 7884 APNIC Deaggregation factor: 4.87 Prefixes being announced from the APNIC address blocks: 37346 Unique aggregates announced from the APNIC address blocks: 8054 APNIC Region origin ASes present in the Internet Routing Table: 1171 APNIC Prefixes per ASN: 31.89 APNIC Region origin ASes announcing only one prefix: 459 APNIC Region transit ASes present in the Internet Routing Table: 187 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: 530 Number of APNIC addresses announced to Internet: 163754860 Equivalent to 9 /8s, 194 /16s and 179 /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: 126745 Total ARIN prefixes after maximum aggregation: 66190 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 124184 Unique aggregates announced from the ARIN address blocks: 67585 ARIN Region origin ASes present in the Internet Routing Table: 9193 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3826 ARIN Region transit ASes present in the Internet Routing Table: 844 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: 2169 Number of ARIN addresses announced to Internet: 1021452265 Equivalent to 60 /8s, 226 /16s and 31 /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: 45560 Total RIPE prefixes after maximum aggregation: 25101 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 47996 Unique aggregates announced from the RIPE address blocks: 35969 RIPE Region origin ASes present in the Internet Routing Table: 4316 RIPE Prefixes per ASN: 11.12 RIPE Region origin ASes announcing only one prefix: 1815 RIPE Region transit ASes present in the Internet Routing Table: 663 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1788 Number of RIPE addresses announced to Internet: 275086160 Equivalent to 16 /8s, 101 /16s and 123 /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: 56590 Total LACNIC prefixes after maximum aggregation: 16449 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54658 Unique aggregates announced from the LACNIC address blocks: 24341 LACNIC Region origin ASes present in the Internet Routing Table: 4474 LACNIC Prefixes per ASN: 12.22 LACNIC Region origin ASes announcing only one prefix: 1581 LACNIC Region transit ASes present in the Internet Routing Table: 879 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: 3437 Number of LACNIC addresses announced to Internet: 108400128 Equivalent to 6 /8s, 118 /16s and 14 /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: 10862 Total AfriNIC prefixes after maximum aggregation: 2492 AfriNIC Deaggregation factor: 4.36 Prefixes being announced from the AfriNIC address blocks: 14243 Unique aggregates announced from the AfriNIC address blocks: 5051 AfriNIC Region origin ASes present in the Internet Routing Table: 296 AfriNIC Prefixes per ASN: 48.12 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 74 Average AfriNIC Region AS path length visible: 6.8 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 162 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 13478 8729 118 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 1714 192 50 CMNET-HUNAN-AP China Mobile communication 24444 920 500 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 610 2169 462 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 14380 40906 5399 AMAZON-02, US 22773 3944 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3059 237 1710 USDA-1, US 36352 2512 206 1167 AS-COLOCROSSING, US 367 2017 2268 957 DNIC-ASBLK-00306-00371, US 6167 1933 4003 514 CELLCO-PART, US 11776 1901 259 218 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1430 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 1247 98 1010 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 806 1841 16 TE-AS TE-AS, EG 212238 707 52 626 CDNEXT, GB 34984 603 102 469 TELLCOM-AS, TR 8376 567 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 524 129 440 OPENTRANSIT, FR 25019 519 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 7295 1962 787 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1659 239 1206 Telmex Colombia S.A., CO 3816 1353 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 23 Telefonica del Peru S.A.A., PE 26615 1004 2486 56 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 817 278 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 1219 572 23 RAYA-AS, EG 24863 996 389 23 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36935 663 520 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 575 82 3 KENET-AS, KE 36992 564 1069 299 ETISALAT-MISR, EG 36903 487 220 344 MT-MPLS, MA 29571 478 98 68 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 14380 40906 5399 AMAZON-02, US 9808 13478 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7295 1962 787 UNINET, MX 22773 3944 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3059 237 1710 USDA-1, US 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2512 206 1167 AS-COLOCROSSING, US 367 2017 2268 957 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 13478 13360 CHINAMOBILE-CN China Mobile Communications Grou 8151 7295 6508 UNINET, MX 22773 3944 3631 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 1901 1683 ATLANTICBB-JOHNSTOWN, US 56047 1714 1664 CMNET-HUNAN-AP China Mobile communications corp 56041 1734 1656 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1933 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 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 /12:159 /13:215 /14:584 /15:1109 /16:7575 /17:3419 /18:4150 /19:7622 /20:12618 /21:15796 /22:28259 /23:29002 /24:167668 /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 3953 7295 UNINET, MX 22773 2509 3944 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2446 14380 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1041 1415 BRIGHTSPEED, US 36352 992 2512 AS-COLOCROSSING, US 10620 970 1659 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 881 1901 ATLANTICBB-JOHNSTOWN, US 6167 846 1933 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 2:288 3:937 4:5 5:585 6:152 7:5 8:635 9:5 11:171 12:891 13:505 14:170 15:343 16:266 17:3 18:900 20:195 21:4 22:188 23:2545 24:677 27:54 29:19 31:463 32:13 34:11 35:180 36:3170 37:786 38:2481 39:731 40:93 41:1092 42:21 43:202 44:27 45:4274 46:967 47:118 49:21 50:472 51:387 52:1436 54:358 55:1098 56:11 57:28 58:17 59:36 60:146 61:93 62:539 63:759 64:1793 65:1074 66:1555 67:1067 68:374 69:1193 70:446 71:179 72:701 74:974 75:307 76:250 77:404 78:308 79:235 80:319 81:362 82:777 83:206 84:332 85:558 86:247 87:177 88:305 89:840 90:106 91:905 92:675 93:429 94:927 95:401 96:264 97:50 98:483 99:254 100:28 101:22 102:451 103:1081 104:1663 105:187 106:71 107:1545 108:526 109:377 110:102 111:2431 112:1040 113:34 114:45 115:63 116:58 117:1418 118:70 119:69 120:1603 121:34 122:94 123:187 124:178 125:26 126:1 128:559 129:400 130:628 131:1069 132:571 133:220 134:480 135:121 136:677 137:501 138:1007 139:463 140:728 141:462 142:983 143:887 144:413 145:163 146:661 147:516 148:994 149:652 150:186 151:854 152:575 153:179 154:1169 155:936 156:1227 157:439 158:597 159:741 160:607 161:688 162:1014 163:441 164:757 165:639 166:813 167:703 168:1517 169:159 170:1864 171:106 172:1318 173:801 174:363 175:126 176:439 177:923 178:615 179:884 180:39 181:2357 182:25 183:1429 184:450 185:3132 186:3124 187:1695 188:760 189:1880 190:6302 191:581 192:5077 193:1704 194:1030 195:900 196:761 197:1158 198:2706 199:5214 200:4446 201:3659 202:1005 203:794 204:2175 205:1802 206:1585 207:1580 208:1570 209:1967 210:510 211:507 212:957 213:741 214:954 215:40 216:2485 217:456 218:711 219:18 220:127 221:473 222:25 223:1441 End of report