IPv4 R&E Routing Table Report 20:15 GMT Mon 08 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: 276860 Prefixes after maximum aggregation (per Origin AS): 117941 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 140562 Number of IPv4 prefixes with a valid ROA: 130518 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 146299 Total ASes present in the Internet Routing Table: 20386 Prefixes per ASN: 13.58 Origin-only ASes present in the Internet Routing Table: 17573 Origin ASes announcing only one prefix: 7820 Transit ASes present in the Internet Routing Table: 2813 Transit-only ASes present in the Internet Routing Table: 694 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 336 Number of instances of unregistered ASNs: 365 Number of 32-bit ASNs allocated by the RIRs: 47359 Number of 32-bit ASNs visible in the Routing Table: 8115 Prefixes from 32-bit ASNs in the Routing Table: 33422 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: 90 Number of addresses announced to Internet: 1618723077 Equivalent to 96 /8s, 123 /16s and 193 /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: 88044 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35452 Total APNIC prefixes after maximum aggregation: 7303 APNIC Deaggregation factor: 4.85 Prefixes being announced from the APNIC address blocks: 34252 Unique aggregates announced from the APNIC address blocks: 7114 APNIC Region origin ASes present in the Internet Routing Table: 1170 APNIC Prefixes per ASN: 29.28 APNIC Region origin ASes announcing only one prefix: 458 APNIC Region transit ASes present in the Internet Routing Table: 196 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: 540 Number of APNIC addresses announced to Internet: 162515564 Equivalent to 9 /8s, 175 /16s and 202 /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: 126152 Total ARIN prefixes after maximum aggregation: 65844 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 123935 Unique aggregates announced from the ARIN address blocks: 67382 ARIN Region origin ASes present in the Internet Routing Table: 9198 ARIN Prefixes per ASN: 13.47 ARIN Region origin ASes announcing only one prefix: 3825 ARIN Region transit ASes present in the Internet Routing Table: 860 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: 2163 Number of ARIN addresses announced to Internet: 1022979337 Equivalent to 60 /8s, 249 /16s and 109 /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: 47718 Total RIPE prefixes after maximum aggregation: 25632 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 49849 Unique aggregates announced from the RIPE address blocks: 36386 RIPE Region origin ASes present in the Internet Routing Table: 4449 RIPE Prefixes per ASN: 11.20 RIPE Region origin ASes announcing only one prefix: 1871 RIPE Region transit ASes present in the Internet Routing Table: 665 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: 1836 Number of RIPE addresses announced to Internet: 278049616 Equivalent to 16 /8s, 146 /16s and 179 /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: 56567 Total LACNIC prefixes after maximum aggregation: 16524 LACNIC Deaggregation factor: 3.42 Prefixes being announced from the LACNIC address blocks: 54676 Unique aggregates announced from the LACNIC address blocks: 24771 LACNIC Region origin ASes present in the Internet Routing Table: 4448 LACNIC Prefixes per ASN: 12.29 LACNIC Region origin ASes announcing only one prefix: 1558 LACNIC Region transit ASes present in the Internet Routing Table: 889 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3419 Number of LACNIC addresses announced to Internet: 108507456 Equivalent to 6 /8s, 119 /16s and 177 /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: 10635 Total AfriNIC prefixes after maximum aggregation: 2382 AfriNIC Deaggregation factor: 4.46 Prefixes being announced from the AfriNIC address blocks: 14058 Unique aggregates announced from the AfriNIC address blocks: 4820 AfriNIC Region origin ASes present in the Internet Routing Table: 293 AfriNIC Prefixes per ASN: 47.98 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 73 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: 157 Number of AfriNIC addresses announced to Internet: 46561536 Equivalent to 2 /8s, 198 /16s and 121 /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 12722 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2929 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1690 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 828 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 610 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 551 898 140 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 14337 40863 5388 AMAZON-02, US 22773 3946 3047 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 2983 232 1742 USDA-1, US 36352 2513 206 1167 AS-COLOCROSSING, US 367 2359 2620 1108 DNIC-ASBLK-00306-00371, US 6167 1931 3987 518 CELLCO-PART, US 11776 1901 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 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 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1195 94 974 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 807 1301 130 SAUDINETSTC-AS, SA 8452 773 1841 16 TE-AS TE-AS, EG 212238 691 50 615 CDNEXT, GB 34984 645 109 505 TELLCOM-AS, TR 8376 593 53 26 Jordan Data Communications, JO 35819 578 576 71 MOBILY-AS Etihad Etisalat Company Mobily, 51167 567 113 248 CONTABO, DE 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 7233 1994 800 UNINET, MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 22 Telefonica del Peru S.A.A., PE 26615 1012 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 804 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 22884 694 43 421 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1320 572 23 RAYA-AS, EG 24863 996 389 23 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36935 640 522 42 Vodafone-, EG 36914 577 82 3 KENET-AS, KE 20011 576 154 212 INTERNET-SOLUTIONS, ZA 29571 574 98 71 ORANGE-COTE-IVOIRE, CI 36992 496 1097 223 ETISALAT-MISR, EG 36903 454 203 332 MT-MPLS, MA 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 14337 40863 5388 AMAZON-02, US 9808 12722 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7233 1994 800 UNINET, MX 22773 3946 3047 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 2983 232 1742 USDA-1, US 56046 2929 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1167 AS-COLOCROSSING, US 367 2359 2620 1108 DNIC-ASBLK-00306-00371, US 11830 1986 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 12722 12608 CHINAMOBILE-CN China Mobile Communications Grou 8151 7233 6433 UNINET, MX 22773 3946 3632 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2929 2739 CMNET-JIANGSU-AP China Mobile communications co 11830 1986 1922 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1686 ATLANTICBB-JOHNSTOWN, US 56047 1690 1640 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1931 1413 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 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 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 /12:157 /13:214 /14:585 /15:1108 /16:7590 /17:3425 /18:4106 /19:7625 /20:13092 /21:15667 /22:28194 /23:29127 /24:165618 /25:67 /26:82 /27:53 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3895 7233 UNINET, MX 22773 2503 3946 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2422 14337 AMAZON-02, US 11830 1690 1986 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1038 1393 BRIGHTSPEED, US 36352 998 2513 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:457 3:929 4:5 5:753 6:145 7:5 8:641 9:3 11:171 12:891 13:505 14:127 15:337 16:264 17:3 18:896 20:192 21:4 22:188 23:2531 24:685 27:32 29:19 31:483 32:12 34:10 35:180 36:3084 37:811 38:2421 39:635 40:93 41:1004 42:21 43:199 44:28 45:4368 46:930 47:118 49:21 50:474 51:383 52:1440 54:360 55:1104 56:11 57:24 58:17 59:33 60:31 61:55 62:524 63:770 64:1966 65:1095 66:1591 67:1071 68:361 69:1218 70:446 71:184 72:696 74:958 75:324 76:250 77:413 78:325 79:230 80:298 81:362 82:698 83:207 84:299 85:558 86:249 87:211 88:298 89:662 90:105 91:930 92:678 93:433 94:951 95:639 96:255 97:53 98:489 99:238 100:28 101:24 102:369 103:1074 104:1655 105:187 106:40 107:1551 108:520 109:391 110:54 111:2253 112:867 113:30 114:50 115:16 116:53 117:1215 118:67 119:68 120:1505 121:44 122:60 123:132 124:74 125:24 126:1 128:543 129:398 130:637 131:1087 132:568 133:220 134:480 135:122 136:678 137:496 138:1021 139:438 140:688 141:359 142:955 143:846 144:399 145:163 146:665 147:480 148:1020 149:705 150:200 151:777 152:501 153:181 154:1129 155:912 156:1240 157:436 158:582 159:724 160:628 161:682 162:1005 163:440 164:753 165:634 166:800 167:695 168:1527 169:162 170:1871 171:100 172:1307 173:808 174:361 175:91 176:463 177:923 178:583 179:902 180:39 181:2326 182:25 183:1166 184:451 185:3224 186:3127 187:1813 188:792 189:1871 190:6320 191:564 192:5136 193:1802 194:1141 195:930 196:731 197:1150 198:2711 199:5164 200:4435 201:3605 202:984 203:702 204:2189 205:1826 206:1594 207:1589 208:1557 209:1968 210:345 211:476 212:896 213:719 214:958 215:39 216:2492 217:461 218:596 219:18 220:32 221:452 222:24 223:1249 End of report