IPv4 R&E Routing Table Report 20:15 GMT Wed 21 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: 265048 Prefixes after maximum aggregation (per Origin AS): 116367 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135955 Number of IPv4 prefixes with a valid ROA: 119480 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 145527 Total ASes present in the Internet Routing Table: 19984 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 17272 Origin ASes announcing only one prefix: 7833 Transit ASes present in the Internet Routing Table: 2712 Transit-only ASes present in the Internet Routing Table: 718 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: 321 Number of instances of unregistered ASNs: 325 Number of 32-bit ASNs allocated by the RIRs: 46478 Number of 32-bit ASNs visible in the Routing Table: 7624 Prefixes from 32-bit ASNs in the Routing Table: 28399 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: 1559440861 Equivalent to 92 /8s, 243 /16s and 45 /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: 83620 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32728 Total APNIC prefixes after maximum aggregation: 7570 APNIC Deaggregation factor: 4.32 Prefixes being announced from the APNIC address blocks: 31167 Unique aggregates announced from the APNIC address blocks: 7677 APNIC Region origin ASes present in the Internet Routing Table: 1220 APNIC Prefixes per ASN: 25.55 APNIC Region origin ASes announcing only one prefix: 477 APNIC Region transit ASes present in the Internet Routing Table: 202 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: 562 Number of APNIC addresses announced to Internet: 167835500 Equivalent to 10 /8s, 0 /16s and 247 /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: 125755 Total ARIN prefixes after maximum aggregation: 65869 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 122737 Unique aggregates announced from the ARIN address blocks: 66219 ARIN Region origin ASes present in the Internet Routing Table: 9353 ARIN Prefixes per ASN: 13.12 ARIN Region origin ASes announcing only one prefix: 3902 ARIN Region transit ASes present in the Internet Routing Table: 867 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: 2189 Number of ARIN addresses announced to Internet: 961080801 Equivalent to 57 /8s, 72 /16s and 237 /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: 49717 Total RIPE prefixes after maximum aggregation: 26682 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 51397 Unique aggregates announced from the RIPE address blocks: 37344 RIPE Region origin ASes present in the Internet Routing Table: 4609 RIPE Prefixes per ASN: 11.15 RIPE Region origin ASes announcing only one prefix: 1955 RIPE Region transit ASes present in the Internet Routing Table: 691 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: 1891 Number of RIPE addresses announced to Internet: 285998160 Equivalent to 17 /8s, 11 /16s and 252 /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: 45455 Total LACNIC prefixes after maximum aggregation: 13661 LACNIC Deaggregation factor: 3.33 Prefixes being announced from the LACNIC address blocks: 44652 Unique aggregates announced from the LACNIC address blocks: 20367 LACNIC Region origin ASes present in the Internet Routing Table: 3663 LACNIC Prefixes per ASN: 12.19 LACNIC Region origin ASes announcing only one prefix: 1387 LACNIC Region transit ASes present in the Internet Routing Table: 743 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: 2828 Number of LACNIC addresses announced to Internet: 97531456 Equivalent to 5 /8s, 208 /16s and 54 /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: 11072 Total AfriNIC prefixes after maximum aggregation: 2370 AfriNIC Deaggregation factor: 4.67 Prefixes being announced from the AfriNIC address blocks: 14980 Unique aggregates announced from the AfriNIC address blocks: 4234 AfriNIC Region origin ASes present in the Internet Routing Table: 292 AfriNIC Prefixes per ASN: 51.30 AfriNIC Region origin ASes announcing only one prefix: 112 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: 154 Number of AfriNIC addresses announced to Internet: 46944256 Equivalent to 2 /8s, 204 /16s and 80 /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 843 53 394 LCS-AS-AP LARUS Limited, HK 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 604 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 519 852 138 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 13432 40825 5084 AMAZON-02, US 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2738 208 1677 USDA-1, US 36352 2565 210 1129 AS-COLOCROSSING, US 367 2444 2912 1174 DNIC-ASBLK-00306-00371, US 7018 2088 22887 1537 ATT-INTERNET4, US 11776 1896 258 216 ATLANTICBB-JOHNSTOWN, US 6167 1866 3794 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 1174 92 963 AKAMAI-ASN1, NL 3257 930 2076 747 GTT-BACKBONE GTT, US 3215 894 4818 289 France Telecom - Orange, FR 25019 818 1301 129 SAUDINETSTC-AS, SA 8452 779 1841 16 TE-AS TE-AS, EG 34984 688 76 410 TELLCOM-AS, TR 212238 621 44 547 CDNEXT, GB 203214 592 43 384 HULUMTELE, IQ 8376 569 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 7444 2007 992 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 1198 371 22 Telefonica del Peru S.A.A., PE 26615 1029 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 1495 389 16 LINKdotNET-AS, EG 24835 1023 523 36 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 980 100 74 ORANGE-COTE-IVOIRE, CI 36992 603 1228 124 ETISALAT-MISR, EG 36935 588 125 165 Vodafone-, EG 36914 543 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 457 205 331 MT-MPLS, MA 2018 373 318 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 13432 40825 5084 AMAZON-02, US 9808 10907 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7444 2007 992 UNINET, MX 22773 3345 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2738 208 1677 USDA-1, US 36352 2565 210 1129 AS-COLOCROSSING, US 367 2444 2912 1174 DNIC-ASBLK-00306-00371, US 7018 2088 22887 1537 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 7444 6452 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 36352 2565 1436 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 /14:574 /15:1101 /16:7640 /17:3453 /18:4236 /19:7666 /20:12481 /21:15327 /22:27691 /23:28069 /24:156134 /25:62 /26:81 /27:35 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3985 7444 UNINET, MX 22773 2499 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2319 13432 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 1044 2565 AS-COLOCROSSING, US 19901 980 1269 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 2:475 3:765 4:5 5:799 6:156 7:5 8:677 11:171 12:995 13:374 14:113 15:301 16:246 17:6 18:886 20:181 21:4 22:188 23:2586 24:641 27:23 29:19 31:525 32:9 33:1 34:10 35:136 36:1772 37:979 38:1888 39:554 40:62 41:982 42:21 43:211 44:37 45:3694 46:968 47:92 49:20 50:373 51:386 52:1390 54:309 55:1097 56:11 57:18 58:17 59:31 60:16 61:76 62:542 63:751 64:1923 65:1093 66:1542 67:966 68:398 69:1109 70:415 71:202 72:730 74:939 75:325 76:249 77:476 78:353 79:234 80:311 81:385 82:723 83:232 84:335 85:429 86:231 87:206 88:291 89:865 90:104 91:933 92:620 93:482 94:942 95:687 96:289 97:60 98:459 99:179 100:35 101:18 102:350 103:1238 104:1624 105:218 106:18 107:1525 108:548 109:400 110:35 111:1966 112:478 113:40 114:40 115:23 116:62 117:1047 118:61 119:132 120:1241 121:44 122:66 123:76 124:57 125:25 128:493 129:434 130:694 131:922 132:562 133:211 134:495 135:113 136:610 137:506 138:860 139:425 140:699 141:457 142:1022 143:679 144:435 145:135 146:675 147:491 148:885 149:766 150:357 151:647 152:479 153:129 154:1792 155:860 156:1415 157:371 158:551 159:738 160:818 161:669 162:984 163:430 164:717 165:774 166:784 167:635 168:1117 169:154 170:1562 171:120 172:1372 173:853 174:252 175:65 176:787 177:849 178:507 179:707 180:49 181:1843 182:29 183:956 184:448 185:3508 186:2048 187:1553 188:827 189:1790 190:4232 191:446 192:5143 193:1886 194:1243 195:934 196:723 197:1581 198:2729 199:4915 200:3607 201:3300 202:1012 203:744 204:2147 205:1935 206:1540 207:1512 208:1427 209:1960 210:297 211:436 212:1036 213:785 214:980 215:42 216:2549 217:426 218:525 219:19 220:29 221:349 222:31 223:802 End of report