IPv4 R&E Routing Table Report 20:15 GMT Wed 28 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: 263666 Prefixes after maximum aggregation (per Origin AS): 115885 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135358 Number of IPv4 prefixes with a valid ROA: 119002 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 144621 Total ASes present in the Internet Routing Table: 19794 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 17100 Origin ASes announcing only one prefix: 7783 Transit ASes present in the Internet Routing Table: 2694 Transit-only ASes present in the Internet Routing Table: 725 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: 300 Number of instances of unregistered ASNs: 304 Number of 32-bit ASNs allocated by the RIRs: 46523 Number of 32-bit ASNs visible in the Routing Table: 7478 Prefixes from 32-bit ASNs in the Routing Table: 27943 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: 1557139677 Equivalent to 92 /8s, 208 /16s and 16 /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: 83018 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32648 Total APNIC prefixes after maximum aggregation: 7507 APNIC Deaggregation factor: 4.35 Prefixes being announced from the APNIC address blocks: 31049 Unique aggregates announced from the APNIC address blocks: 7580 APNIC Region origin ASes present in the Internet Routing Table: 1227 APNIC Prefixes per ASN: 25.30 APNIC Region origin ASes announcing only one prefix: 483 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: 568 Number of APNIC addresses announced to Internet: 166650476 Equivalent to 9 /8s, 238 /16s and 226 /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: 125772 Total ARIN prefixes after maximum aggregation: 65998 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 122854 Unique aggregates announced from the ARIN address blocks: 66240 ARIN Region origin ASes present in the Internet Routing Table: 9332 ARIN Prefixes per ASN: 13.16 ARIN Region origin ASes announcing only one prefix: 3902 ARIN Region transit ASes present in the Internet Routing Table: 863 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: 2186 Number of ARIN addresses announced to Internet: 960957153 Equivalent to 57 /8s, 71 /16s and 10 /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: 49273 Total RIPE prefixes after maximum aggregation: 26426 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 51124 Unique aggregates announced from the RIPE address blocks: 37140 RIPE Region origin ASes present in the Internet Routing Table: 4594 RIPE Prefixes per ASN: 11.13 RIPE Region origin ASes announcing only one prefix: 1946 RIPE Region transit ASes present in the Internet Routing Table: 698 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: 1891 Number of RIPE addresses announced to Internet: 285357904 Equivalent to 17 /8s, 2 /16s and 55 /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: 44703 Total LACNIC prefixes after maximum aggregation: 13387 LACNIC Deaggregation factor: 3.34 Prefixes being announced from the LACNIC address blocks: 43826 Unique aggregates announced from the LACNIC address blocks: 19986 LACNIC Region origin ASes present in the Internet Routing Table: 3494 LACNIC Prefixes per ASN: 12.54 LACNIC Region origin ASes announcing only one prefix: 1337 LACNIC Region transit ASes present in the Internet Routing Table: 720 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: 2677 Number of LACNIC addresses announced to Internet: 97270080 Equivalent to 5 /8s, 204 /16s and 57 /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: 10970 Total AfriNIC prefixes after maximum aggregation: 2364 AfriNIC Deaggregation factor: 4.64 Prefixes being announced from the AfriNIC address blocks: 14698 Unique aggregates announced from the AfriNIC address blocks: 4298 AfriNIC Region origin ASes present in the Internet Routing Table: 294 AfriNIC Prefixes per ASN: 49.99 AfriNIC Region origin ASes announcing only one prefix: 115 AfriNIC Region transit ASes present in the Internet Routing Table: 79 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: 156 Number of AfriNIC addresses announced to Internet: 46853376 Equivalent to 2 /8s, 202 /16s and 237 /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 10863 8756 96 CHINAMOBILE-CN China Mobile Communication 56046 1924 811 187 CMNET-JIANGSU-AP China Mobile communicati 56041 1586 715 80 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 801 51 374 LCS-AS-AP LARUS Limited, HK 24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 605 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 517 848 138 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 13552 40827 5186 AMAZON-02, US 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2759 210 1695 USDA-1, US 36352 2560 210 1126 AS-COLOCROSSING, US 367 2442 2895 1174 DNIC-ASBLK-00306-00371, US 7018 2073 22882 1526 ATT-INTERNET4, US 11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US 6167 1885 3865 497 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 1176 92 961 AKAMAI-ASN1, NL 3257 951 2078 765 GTT-BACKBONE GTT, US 3215 894 4818 289 France Telecom - Orange, FR 25019 812 1300 125 SAUDINETSTC-AS, SA 8452 779 1841 16 TE-AS TE-AS, EG 34984 675 74 405 TELLCOM-AS, TR 212238 637 46 563 CDNEXT, GB 203214 584 43 379 HULUMTELE, IQ 8376 575 53 21 Jordan Data Communications, JO 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 7334 1993 978 UNINET, MX 11830 1990 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 1198 371 22 Telefonica del Peru S.A.A., PE 26615 1041 2503 52 TIM SA, BR 18881 883 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 1481 389 16 LINKdotNET-AS, EG 24835 1053 535 35 RAYA-AS, EG 29571 989 100 74 ORANGE-COTE-IVOIRE, CI 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 604 1228 124 ETISALAT-MISR, EG 36914 555 82 3 KENET-AS, KE 36935 546 117 156 Vodafone-, EG 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 13552 40827 5186 AMAZON-02, US 9808 10863 8756 96 CHINAMOBILE-CN China Mobile Communication 8151 7334 1993 978 UNINET, MX 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2759 210 1695 USDA-1, US 36352 2560 210 1126 AS-COLOCROSSING, US 367 2442 2895 1174 DNIC-ASBLK-00306-00371, US 7018 2073 22882 1526 ATT-INTERNET4, US 11830 1990 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 10863 10767 CHINAMOBILE-CN China Mobile Communications Grou 8151 7334 6356 UNINET, MX 22773 3345 3181 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 56046 1924 1737 CMNET-JIANGSU-AP China Mobile communications co 11776 1900 1689 ATLANTICBB-JOHNSTOWN, US 56041 1586 1506 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1481 1465 LINKdotNET-AS, EG 36352 2560 1434 AS-COLOCROSSING, 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 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 /14:573 /15:1100 /16:7633 /17:3426 /18:4219 /19:7633 /20:12478 /21:15185 /22:27389 /23:27935 /24:155417 /25:62 /26:82 /27:36 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3943 7334 UNINET, MX 22773 2498 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2384 13552 AMAZON-02, US 11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1038 2560 AS-COLOCROSSING, US 19901 981 1271 BRSPD-PUBLIC, US 209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1900 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 2:472 3:789 4:5 5:794 6:155 7:5 8:675 11:171 12:992 13:382 14:115 15:303 16:247 17:6 18:888 20:185 21:4 22:188 23:2578 24:640 27:22 29:19 31:509 32:9 33:1 34:10 35:140 36:1783 37:1008 38:1920 39:551 40:62 41:993 42:21 43:206 44:34 45:3577 46:942 47:91 49:20 50:364 51:386 52:1395 54:316 55:1097 56:11 57:20 58:16 59:31 60:16 61:73 62:539 63:753 64:1881 65:1091 66:1538 67:962 68:398 69:1116 70:416 71:201 72:730 74:943 75:319 76:248 77:483 78:349 79:235 80:310 81:377 82:713 83:236 84:337 85:421 86:231 87:207 88:291 89:852 90:104 91:927 92:638 93:483 94:935 95:685 96:274 97:60 98:455 99:182 100:36 101:23 102:358 103:1223 104:1616 105:214 106:3 107:1525 108:550 109:395 110:35 111:1920 112:499 113:39 114:40 115:24 116:62 117:1043 118:71 119:89 120:1255 121:43 122:66 123:78 124:57 125:25 128:495 129:392 130:694 131:929 132:571 133:211 134:494 135:112 136:607 137:507 138:907 139:429 140:703 141:466 142:1026 143:690 144:441 145:132 146:671 147:515 148:874 149:759 150:353 151:633 152:489 153:129 154:1682 155:864 156:1354 157:386 158:555 159:730 160:812 161:636 162:1001 163:429 164:718 165:781 166:791 167:648 168:1105 169:156 170:1539 171:121 172:1341 173:851 174:253 175:60 176:779 177:797 178:502 179:687 180:45 181:1819 182:29 183:958 184:452 185:3494 186:2081 187:1431 188:826 189:1727 190:4225 191:447 192:5183 193:1868 194:1228 195:927 196:681 197:1570 198:2739 199:4921 200:3678 201:3278 202:1007 203:748 204:2165 205:1948 206:1534 207:1517 208:1418 209:1906 210:297 211:421 212:1029 213:779 214:982 215:42 216:2533 217:426 218:525 219:18 220:28 221:360 222:31 223:824 End of report