IPv4 R&E Routing Table Report 20:15 GMT Fri 01 Aug, 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: 281010 Prefixes after maximum aggregation (per Origin AS): 120746 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143802 Number of IPv4 prefixes with a valid ROA: 131015 Number of IPv4 prefixes with an invalid ROA: 212 Number of IPv4 prefixes with no ROA: 149783 Total ASes present in the Internet Routing Table: 20812 Prefixes per ASN: 13.50 Origin-only ASes present in the Internet Routing Table: 17915 Origin ASes announcing only one prefix: 8004 Transit ASes present in the Internet Routing Table: 2897 Transit-only ASes present in the Internet Routing Table: 725 Paths with bogon ASNs present in the IPv4 Routing Table: 13 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: 337 Number of instances of unregistered ASNs: 369 Number of 32-bit ASNs allocated by the RIRs: 47020 Number of 32-bit ASNs visible in the Routing Table: 8257 Prefixes from 32-bit ASNs in the Routing Table: 33844 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 96 Number of addresses announced to Internet: 1645661445 Equivalent to 98 /8s, 22 /16s and 205 /24s Percentage of available address space announced: 44.5 Percentage of allocated address space announced: 44.5 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: 89571 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35398 Total APNIC prefixes after maximum aggregation: 7524 APNIC Deaggregation factor: 4.70 Prefixes being announced from the APNIC address blocks: 34401 Unique aggregates announced from the APNIC address blocks: 7894 APNIC Region origin ASes present in the Internet Routing Table: 1197 APNIC Prefixes per ASN: 28.74 APNIC Region origin ASes announcing only one prefix: 474 APNIC Region transit ASes present in the Internet Routing Table: 191 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 562 Number of APNIC addresses announced to Internet: 173878124 Equivalent to 10 /8s, 93 /16s and 43 /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: 126947 Total ARIN prefixes after maximum aggregation: 66716 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125393 Unique aggregates announced from the ARIN address blocks: 68367 ARIN Region origin ASes present in the Internet Routing Table: 9362 ARIN Prefixes per ASN: 13.39 ARIN Region origin ASes announcing only one prefix: 3896 ARIN Region transit ASes present in the Internet Routing Table: 886 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: 2213 Number of ARIN addresses announced to Internet: 1028435465 Equivalent to 61 /8s, 76 /16s and 174 /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: 50856 Total RIPE prefixes after maximum aggregation: 27398 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 52325 Unique aggregates announced from the RIPE address blocks: 38284 RIPE Region origin ASes present in the Internet Routing Table: 4688 RIPE Prefixes per ASN: 11.16 RIPE Region origin ASes announcing only one prefix: 1965 RIPE Region transit ASes present in the Internet Routing Table: 705 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1933 Number of RIPE addresses announced to Internet: 287660880 Equivalent to 17 /8s, 37 /16s and 91 /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: 56077 Total LACNIC prefixes after maximum aggregation: 16463 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54330 Unique aggregates announced from the LACNIC address blocks: 24586 LACNIC Region origin ASes present in the Internet Routing Table: 4426 LACNIC Prefixes per ASN: 12.28 LACNIC Region origin ASes announcing only one prefix: 1571 LACNIC Region transit ASes present in the Internet Routing Table: 893 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: 3404 Number of LACNIC addresses announced to Internet: 109120576 Equivalent to 6 /8s, 129 /16s and 12 /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: 11395 Total AfriNIC prefixes after maximum aggregation: 2392 AfriNIC Deaggregation factor: 4.76 Prefixes being announced from the AfriNIC address blocks: 14465 Unique aggregates announced from the AfriNIC address blocks: 4578 AfriNIC Region origin ASes present in the Internet Routing Table: 285 AfriNIC Prefixes per ASN: 50.75 AfriNIC Region origin ASes announcing only one prefix: 98 AfriNIC Region transit ASes present in the Internet Routing Table: 80 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 145 Number of AfriNIC addresses announced to Internet: 46447360 Equivalent to 2 /8s, 196 /16s and 187 /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 12188 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2827 811 189 CMNET-JIANGSU-AP China Mobile communicati 56047 1660 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1643 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 866 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 612 2169 462 SINET-AS Research Organization of Informa 132525 550 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 537 893 139 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 13694 41055 5279 AMAZON-02, US 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2893 219 1732 USDA-1, US 36352 2559 210 1141 AS-COLOCROSSING, US 367 2443 2964 1141 DNIC-ASBLK-00306-00371, US 6167 1942 4030 519 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4888 264 CENTURYLINK-US-LEGACY-QWEST, US 7018 1602 22828 1200 ATT-INTERNET4, 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 1192 93 970 AKAMAI-ASN1, NL 3257 1051 2083 815 GTT-BACKBONE GTT, US 34984 940 118 606 TELLCOM-AS, TR 3215 888 4818 292 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 25019 802 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 8376 570 52 24 Jordan Data Communications, JO 51167 564 113 248 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 7262 2013 884 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1691 242 1219 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 26615 1015 2487 55 TIM SA, BR 18881 885 1127 31 TELEFONICA BRASIL S.A, BR 11172 722 122 78 Alestra, S. de R.L. de C.V., MX 27651 651 92 46 ENTEL CHILE S.A., CL 28006 643 76 296 CORPORACION NACIONAL DE TELECOMUNICACIONE 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 1435 572 23 RAYA-AS, EG 29571 1155 99 104 ORANGE-COTE-IVOIRE, CI 24863 1009 388 20 LINKdotNET-AS, EG 37069 961 1112 11 MOBINIL, EG 36914 578 82 3 KENET-AS, KE 36935 576 518 29 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 509 1092 217 ETISALAT-MISR, EG 36903 456 204 330 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 13694 41055 5279 AMAZON-02, US 9808 12188 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7262 2013 884 UNINET, MX 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2893 219 1732 USDA-1, US 56046 2827 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2559 210 1141 AS-COLOCROSSING, US 367 2443 2964 1141 DNIC-ASBLK-00306-00371, US 11830 1987 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 12188 12073 CHINAMOBILE-CN China Mobile Communications Grou 8151 7262 6378 UNINET, MX 22773 3337 3174 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2827 2638 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1660 1610 CMNET-HUNAN-AP China Mobile communications corp 56041 1643 1565 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1942 1423 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 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 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 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, US 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 /10:31 /11:51 /12:159 /13:216 /14:591 /15:1120 /16:7772 /17:3494 /18:4274 /19:7827 /20:13352 /21:16078 /22:28710 /23:29477 /24:167580 /25:67 /26:85 /27:52 /28:18 /29:13 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3770 7262 UNINET, MX 22773 2492 3337 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2362 13694 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1028 1356 BRSPD-PUBLIC, US 36352 1017 2559 AS-COLOCROSSING, US 10620 997 1691 Telmex Colombia S.A., CO 209 962 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:28 2:453 3:858 4:5 5:837 6:145 7:5 8:657 11:171 12:956 13:400 14:112 15:310 16:247 17:3 18:892 20:191 21:4 22:188 23:2653 24:679 27:28 29:19 31:477 32:18 33:1 34:10 35:175 36:2838 37:753 38:2635 39:592 40:83 41:1122 42:21 43:225 44:31 45:4242 46:1012 47:111 49:25 50:478 51:385 52:1383 54:319 55:1099 56:11 57:23 58:17 59:34 60:31 61:60 62:516 63:787 64:1956 65:1132 66:1632 67:1098 68:376 69:1271 70:454 71:189 72:701 74:966 75:320 76:265 77:480 78:367 79:243 80:309 81:376 82:762 83:250 84:343 85:487 86:248 87:219 88:302 89:671 90:108 91:1008 92:705 93:475 94:1028 95:644 96:259 97:53 98:499 99:191 100:40 101:30 102:419 103:1273 104:1693 105:186 106:40 107:1558 108:532 109:439 110:48 111:2104 112:750 113:39 114:54 115:31 116:52 117:1162 118:86 119:108 120:1470 121:50 122:60 123:138 124:64 125:25 126:1 128:534 129:401 130:676 131:1028 132:568 133:212 134:477 135:127 136:675 137:524 138:1030 139:455 140:762 141:377 142:1034 143:830 144:432 145:155 146:684 147:510 148:1024 149:736 150:213 151:818 152:632 153:131 154:1213 155:899 156:954 157:410 158:575 159:723 160:860 161:713 162:1084 163:441 164:739 165:656 166:814 167:697 168:1572 169:165 170:1747 171:104 172:1334 173:854 174:359 175:90 176:822 177:1053 178:618 179:845 180:42 181:2264 182:30 183:1112 184:457 185:3448 186:2861 187:1499 188:840 189:1976 190:5982 191:548 192:5279 193:1837 194:1204 195:956 196:721 197:1194 198:2770 199:5090 200:4629 201:3820 202:991 203:707 204:2239 205:1823 206:1612 207:1629 208:1531 209:1980 210:357 211:469 212:944 213:791 214:943 215:37 216:2644 217:471 218:564 219:18 220:33 221:469 222:24 223:1165 End of report