IPv4 R&E Routing Table Report 20:15 GMT Sat 27 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: 277508 Prefixes after maximum aggregation (per Origin AS): 118423 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 141923 Number of IPv4 prefixes with a valid ROA: 129951 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 147347 Total ASes present in the Internet Routing Table: 20196 Prefixes per ASN: 13.74 Origin-only ASes present in the Internet Routing Table: 17432 Origin ASes announcing only one prefix: 7780 Transit ASes present in the Internet Routing Table: 2764 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: 315 Number of instances of unregistered ASNs: 344 Number of 32-bit ASNs allocated by the RIRs: 47563 Number of 32-bit ASNs visible in the Routing Table: 8039 Prefixes from 32-bit ASNs in the Routing Table: 33142 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: 94 Number of addresses announced to Internet: 1613186981 Equivalent to 96 /8s, 39 /16s and 71 /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: 87150 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38374 Total APNIC prefixes after maximum aggregation: 7830 APNIC Deaggregation factor: 4.90 Prefixes being announced from the APNIC address blocks: 37321 Unique aggregates announced from the APNIC address blocks: 8011 APNIC Region origin ASes present in the Internet Routing Table: 1173 APNIC Prefixes per ASN: 31.82 APNIC Region origin ASes announcing only one prefix: 465 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: 531 Number of APNIC addresses announced to Internet: 163622252 Equivalent to 9 /8s, 192 /16s and 173 /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: 126807 Total ARIN prefixes after maximum aggregation: 66279 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 124215 Unique aggregates announced from the ARIN address blocks: 67884 ARIN Region origin ASes present in the Internet Routing Table: 9200 ARIN Prefixes per ASN: 13.50 ARIN Region origin ASes announcing only one prefix: 3837 ARIN Region transit ASes present in the Internet Routing Table: 847 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: 2171 Number of ARIN addresses announced to Internet: 1022037737 Equivalent to 60 /8s, 235 /16s and 14 /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: 45451 Total RIPE prefixes after maximum aggregation: 24988 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 47842 Unique aggregates announced from the RIPE address blocks: 35854 RIPE Region origin ASes present in the Internet Routing Table: 4282 RIPE Prefixes per ASN: 11.17 RIPE Region origin ASes announcing only one prefix: 1802 RIPE Region transit ASes present in the Internet Routing Table: 666 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: 1779 Number of RIPE addresses announced to Internet: 274349136 Equivalent to 16 /8s, 90 /16s and 60 /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: 56362 Total LACNIC prefixes after maximum aggregation: 16405 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54450 Unique aggregates announced from the LACNIC address blocks: 24387 LACNIC Region origin ASes present in the Internet Routing Table: 4436 LACNIC Prefixes per ASN: 12.27 LACNIC Region origin ASes announcing only one prefix: 1566 LACNIC Region transit ASes present in the Internet Routing Table: 871 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: 3399 Number of LACNIC addresses announced to Internet: 108407808 Equivalent to 6 /8s, 118 /16s and 44 /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: 10199 Total AfriNIC prefixes after maximum aggregation: 2663 AfriNIC Deaggregation factor: 3.83 Prefixes being announced from the AfriNIC address blocks: 13586 Unique aggregates announced from the AfriNIC address blocks: 5694 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 46.05 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 73 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: 159 Number of AfriNIC addresses announced to Internet: 44661248 Equivalent to 2 /8s, 169 /16s and 122 /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 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 14357 40906 5413 AMAZON-02, US 22773 3947 3045 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3065 237 1701 USDA-1, US 36352 2513 206 1166 AS-COLOCROSSING, US 6167 1933 4003 514 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 367 1885 2171 879 DNIC-ASBLK-00306-00371, US 209 1648 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 802 1841 16 TE-AS TE-AS, EG 212238 707 52 626 CDNEXT, GB 34984 633 111 489 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 565 53 25 Jordan Data Communications, JO 5511 529 129 445 OPENTRANSIT, FR 35819 526 531 79 MOBILY-AS Etihad Etisalat Company Mobily, 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 7297 1964 788 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 1178 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 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 24863 994 389 23 LINKdotNET-AS, EG 37069 981 1096 13 MOBINIL, EG 24835 957 426 136 RAYA-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 567 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 36935 442 116 132 Vodafone-, EG 2018 375 318 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 14357 40906 5413 AMAZON-02, US 9808 13478 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7297 1964 788 UNINET, MX 22773 3947 3045 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3065 237 1701 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 1933 4003 514 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 13478 13360 CHINAMOBILE-CN China Mobile Communications Grou 8151 7297 6509 UNINET, MX 22773 3947 3633 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 1902 1687 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 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 /11:50 /12:159 /13:214 /14:583 /15:1101 /16:7566 /17:3417 /18:4136 /19:7604 /20:12525 /21:15756 /22:27923 /23:28870 /24:167309 /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 3954 7297 UNINET, MX 22773 2512 3947 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2442 14357 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1044 1420 BRIGHTSPEED, US 36352 993 2513 AS-COLOCROSSING, US 10620 979 1668 Telmex Colombia S.A., CO 209 959 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 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 2:300 3:936 4:5 5:577 6:157 7:5 8:629 9:5 11:171 12:890 13:495 14:169 15:343 16:266 17:3 18:900 20:194 21:4 22:188 23:2562 24:680 27:54 29:19 31:462 32:13 34:10 35:180 36:3179 37:798 38:2467 39:731 40:94 41:1053 42:21 43:200 44:26 45:4257 46:967 47:118 49:21 50:475 51:387 52:1436 54:355 55:1040 56:11 57:29 58:17 59:30 60:146 61:93 62:528 63:761 64:1814 65:1068 66:1559 67:1067 68:377 69:1179 70:446 71:178 72:703 74:979 75:307 76:250 77:402 78:309 79:235 80:316 81:364 82:739 83:203 84:334 85:562 86:246 87:188 88:306 89:833 90:106 91:908 92:667 93:428 94:924 95:405 96:263 97:50 98:482 99:256 100:28 101:20 102:415 103:1085 104:1667 105:173 106:71 107:1545 108:517 109:375 110:102 111:2433 112:1040 113:33 114:45 115:63 116:58 117:1418 118:67 119:69 120:1603 121:34 122:94 123:186 124:178 125:26 126:1 128:555 129:400 130:617 131:1056 132:575 133:221 134:483 135:121 136:683 137:502 138:1010 139:462 140:729 141:461 142:983 143:874 144:408 145:163 146:657 147:515 148:979 149:652 150:202 151:852 152:573 153:179 154:1177 155:933 156:1247 157:438 158:587 159:734 160:597 161:686 162:1008 163:438 164:748 165:616 166:810 167:694 168:1499 169:153 170:1864 171:103 172:1319 173:803 174:363 175:136 176:434 177:925 178:618 179:887 180:38 181:2341 182:25 183:1429 184:447 185:3113 186:3098 187:1684 188:758 189:1879 190:6294 191:581 192:5082 193:1701 194:1028 195:886 196:750 197:1131 198:2722 199:5239 200:4430 201:3699 202:1005 203:793 204:2176 205:1805 206:1585 207:1583 208:1585 209:1970 210:510 211:507 212:957 213:739 214:950 215:40 216:2490 217:454 218:708 219:18 220:127 221:473 222:26 223:1441 End of report