IPv4 R&E Routing Table Report 20:15 GMT Tue 20 May, 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: 263959 Prefixes after maximum aggregation (per Origin AS): 115979 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135455 Number of IPv4 prefixes with a valid ROA: 118778 Number of IPv4 prefixes with an invalid ROA: 29 Number of IPv4 prefixes with no ROA: 145152 Total ASes present in the Internet Routing Table: 19825 Prefixes per ASN: 13.31 Origin-only ASes present in the Internet Routing Table: 17136 Origin ASes announcing only one prefix: 7804 Transit ASes present in the Internet Routing Table: 2689 Transit-only ASes present in the Internet Routing Table: 728 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 314 Number of instances of unregistered ASNs: 318 Number of 32-bit ASNs allocated by the RIRs: 46463 Number of 32-bit ASNs visible in the Routing Table: 7483 Prefixes from 32-bit ASNs in the Routing Table: 27970 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 115 Number of addresses announced to Internet: 1558831069 Equivalent to 92 /8s, 233 /16s and 223 /24s Percentage of available address space announced: 42.1 Percentage of allocated address space announced: 42.1 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: 83061 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32549 Total APNIC prefixes after maximum aggregation: 7530 APNIC Deaggregation factor: 4.32 Prefixes being announced from the APNIC address blocks: 30993 Unique aggregates announced from the APNIC address blocks: 7623 APNIC Region origin ASes present in the Internet Routing Table: 1204 APNIC Prefixes per ASN: 25.74 APNIC Region origin ASes announcing only one prefix: 479 APNIC Region transit ASes present in the Internet Routing Table: 206 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 558 Number of APNIC addresses announced to Internet: 167619180 Equivalent to 9 /8s, 253 /16s and 170 /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: 125662 Total ARIN prefixes after maximum aggregation: 65785 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 122690 Unique aggregates announced from the ARIN address blocks: 66229 ARIN Region origin ASes present in the Internet Routing Table: 9364 ARIN Prefixes per ASN: 13.10 ARIN Region origin ASes announcing only one prefix: 3913 ARIN Region transit ASes present in the Internet Routing Table: 864 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2194 Number of ARIN addresses announced to Internet: 960841185 Equivalent to 57 /8s, 69 /16s and 69 /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: 49589 Total RIPE prefixes after maximum aggregation: 26634 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 51269 Unique aggregates announced from the RIPE address blocks: 37220 RIPE Region origin ASes present in the Internet Routing Table: 4593 RIPE Prefixes per ASN: 11.16 RIPE Region origin ASes announcing only one prefix: 1945 RIPE Region transit ASes present in the Internet Routing Table: 692 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1883 Number of RIPE addresses announced to Internet: 286019152 Equivalent to 17 /8s, 12 /16s and 78 /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: 44766 Total LACNIC prefixes after maximum aggregation: 13468 LACNIC Deaggregation factor: 3.32 Prefixes being announced from the LACNIC address blocks: 43882 Unique aggregates announced from the LACNIC address blocks: 20048 LACNIC Region origin ASes present in the Internet Routing Table: 3524 LACNIC Prefixes per ASN: 12.45 LACNIC Region origin ASes announcing only one prefix: 1359 LACNIC Region transit ASes present in the Internet Routing Table: 708 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2699 Number of LACNIC addresses announced to Internet: 97359424 Equivalent to 5 /8s, 205 /16s and 150 /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: 11079 Total AfriNIC prefixes after maximum aggregation: 2349 AfriNIC Deaggregation factor: 4.72 Prefixes being announced from the AfriNIC address blocks: 15010 Unique aggregates announced from the AfriNIC address blocks: 4221 AfriNIC Region origin ASes present in the Internet Routing Table: 284 AfriNIC Prefixes per ASN: 52.85 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 80 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: 149 Number of AfriNIC addresses announced to Internet: 46941440 Equivalent to 2 /8s, 204 /16s and 69 /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 10907 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1837 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1586 715 80 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 842 53 393 LCS-AS-AP LARUS Limited, HK 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 603 2169 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 514 848 137 ALIBABA-CN-NET Alibaba US Technology Co., 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 13420 40824 5071 AMAZON-02, US 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3230 54783 2481 DNIC-AS-00749, US 4155 2738 208 1693 USDA-1, US 36352 2560 210 1132 AS-COLOCROSSING, US 367 2434 2908 1166 DNIC-ASBLK-00306-00371, US 7018 2089 22887 1538 ATT-INTERNET4, US 11776 1896 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1865 3790 491 CELLCO-PART, US 209 1661 4889 271 CENTURYLINK-US-LEGACY-QWEST, 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 1177 92 965 AKAMAI-ASN1, NL 3257 930 2076 747 GTT-BACKBONE GTT, US 3215 895 4818 289 France Telecom - Orange, FR 25019 820 1301 129 SAUDINETSTC-AS, SA 8452 778 1841 16 TE-AS TE-AS, EG 34984 689 77 411 TELLCOM-AS, TR 212238 621 44 547 CDNEXT, GB 58224 606 345 429 TCI, IR 203214 576 42 381 HULUMTELE, IQ 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 7251 1991 996 UNINET, MX 11830 1996 369 64 Instituto Costarricense de Electricidad y 10620 1902 280 1293 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1199 371 22 Telefonica del Peru S.A.A., PE 26615 1027 2503 52 TIM SA, BR 18881 882 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 552 2884 69 TELEFONICA BRASIL S.A, BR 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 1495 389 16 LINKdotNET-AS, EG 24835 1024 523 36 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 979 100 74 ORANGE-COTE-IVOIRE, CI 36992 603 1228 124 ETISALAT-MISR, EG 36935 586 125 165 Vodafone-, EG 36914 555 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 457 205 331 MT-MPLS, MA 2018 372 318 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 13420 40824 5071 AMAZON-02, US 9808 10907 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7251 1991 996 UNINET, MX 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3230 54783 2481 DNIC-AS-00749, US 4155 2738 208 1693 USDA-1, US 36352 2560 210 1132 AS-COLOCROSSING, US 367 2434 2908 1166 DNIC-ASBLK-00306-00371, US 7018 2089 22887 1538 ATT-INTERNET4, US 11830 1996 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 10907 10812 CHINAMOBILE-CN China Mobile Communications Grou 8151 7251 6255 UNINET, MX 22773 3345 3181 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1996 1932 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1896 1680 ATLANTICBB-JOHNSTOWN, US 56046 1837 1651 CMNET-JIANGSU-AP China Mobile communications co 56041 1586 1506 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1495 1479 LINKdotNET-AS, EG 56047 1485 1432 CMNET-HUNAN-AP China Mobile communications corp 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, 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 /8:13 /9:10 /10:30 /11:41 /12:150 /13:209 /14:574 /15:1100 /16:7641 /17:3451 /18:4217 /19:7651 /20:12486 /21:15308 /22:27515 /23:27795 /24:155546 /25:62 /26:81 /27:35 /28:13 /29:15 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3791 7251 UNINET, MX 22773 2499 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2312 13420 AMAZON-02, US 11830 1697 1996 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1041 2560 AS-COLOCROSSING, US 19901 979 1266 BRSPD-PUBLIC, US 209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1896 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:19 2:479 3:762 4:5 5:800 6:156 7:5 8:678 11:171 12:996 13:366 14:115 15:301 16:246 17:6 18:884 20:181 21:4 22:188 23:2599 24:640 27:23 29:19 31:515 32:9 33:1 34:10 35:133 36:1771 37:975 38:1945 39:555 40:62 41:986 42:21 43:204 44:36 45:3622 46:958 47:93 49:18 50:366 51:386 52:1392 54:313 55:1089 56:11 57:18 58:17 59:15 60:16 61:75 62:546 63:752 64:1926 65:1092 66:1536 67:960 68:398 69:1115 70:413 71:199 72:730 74:939 75:325 76:249 77:479 78:349 79:234 80:315 81:384 82:723 83:231 84:338 85:433 86:231 87:208 88:292 89:863 90:104 91:926 92:621 93:485 94:923 95:683 96:289 97:60 98:457 99:175 100:35 101:18 102:366 103:1208 104:1626 105:222 106:16 107:1525 108:548 109:394 110:35 111:1966 112:478 113:40 114:40 115:22 116:62 117:1047 118:29 119:124 120:1241 121:44 122:58 123:76 124:57 125:25 128:492 129:432 130:690 131:909 132:565 133:211 134:496 135:113 136:610 137:502 138:860 139:424 140:699 141:456 142:1022 143:677 144:436 145:135 146:674 147:491 148:884 149:762 150:351 151:642 152:479 153:130 154:1790 155:859 156:1409 157:384 158:554 159:736 160:816 161:665 162:984 163:430 164:718 165:776 166:783 167:633 168:1123 169:154 170:1543 171:121 172:1372 173:845 174:253 175:62 176:787 177:811 178:510 179:696 180:49 181:1817 182:29 183:956 184:448 185:3471 186:2040 187:1409 188:819 189:1766 190:4236 191:443 192:5144 193:1881 194:1234 195:937 196:735 197:1584 198:2735 199:4911 200:3603 201:3271 202:994 203:731 204:2150 205:1952 206:1536 207:1511 208:1425 209:1937 210:292 211:436 212:1030 213:787 214:981 215:42 216:2544 217:429 218:525 219:19 220:29 221:349 222:31 223:802 End of report