IPv4 R&E Routing Table Report 20:15 GMT Thu 04 Dec, 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: 287024 Prefixes after maximum aggregation (per Origin AS): 118758 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 148692 Number of IPv4 prefixes with a valid ROA: 141810 Number of IPv4 prefixes with an invalid ROA: 206 Number of IPv4 prefixes with no ROA: 145008 Total ASes present in the Internet Routing Table: 20567 Prefixes per ASN: 13.96 Origin-only ASes present in the Internet Routing Table: 17716 Origin ASes announcing only one prefix: 7990 Transit ASes present in the Internet Routing Table: 2851 Transit-only ASes present in the Internet Routing Table: 735 Paths with bogon ASNs present in the IPv4 Routing Table: 11 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: 264 Number of instances of unregistered ASNs: 293 Number of 32-bit ASNs allocated by the RIRs: 48129 Number of 32-bit ASNs visible in the Routing Table: 8298 Prefixes from 32-bit ASNs in the Routing Table: 34107 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 87 Number of addresses announced to Internet: 1613308093 Equivalent to 96 /8s, 41 /16s and 32 /24s Percentage of available address space announced: 43.6 Percentage of allocated address space announced: 43.6 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: 92569 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 41909 Total APNIC prefixes after maximum aggregation: 8702 APNIC Deaggregation factor: 4.82 Prefixes being announced from the APNIC address blocks: 38471 Unique aggregates announced from the APNIC address blocks: 8630 APNIC Region origin ASes present in the Internet Routing Table: 1243 APNIC Prefixes per ASN: 30.95 APNIC Region origin ASes announcing only one prefix: 505 APNIC Region transit ASes present in the Internet Routing Table: 209 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 596 Number of APNIC addresses announced to Internet: 167627364 Equivalent to 9 /8s, 253 /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: 126585 Total ARIN prefixes after maximum aggregation: 65156 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 123864 Unique aggregates announced from the ARIN address blocks: 70872 ARIN Region origin ASes present in the Internet Routing Table: 9206 ARIN Prefixes per ASN: 13.45 ARIN Region origin ASes announcing only one prefix: 3842 ARIN Region transit ASes present in the Internet Routing Table: 852 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 21 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2195 Number of ARIN addresses announced to Internet: 1007189801 Equivalent to 60 /8s, 8 /16s and 127 /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: 50813 Total RIPE prefixes after maximum aggregation: 25466 RIPE Deaggregation factor: 2.00 Prefixes being announced from the RIPE address blocks: 53375 Unique aggregates announced from the RIPE address blocks: 36699 RIPE Region origin ASes present in the Internet Routing Table: 4504 RIPE Prefixes per ASN: 11.85 RIPE Region origin ASes announcing only one prefix: 1929 RIPE Region transit ASes present in the Internet Routing Table: 692 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1879 Number of RIPE addresses announced to Internet: 285065936 Equivalent to 16 /8s, 253 /16s and 194 /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: 56892 Total LACNIC prefixes after maximum aggregation: 16711 LACNIC Deaggregation factor: 3.40 Prefixes being announced from the LACNIC address blocks: 54753 Unique aggregates announced from the LACNIC address blocks: 24397 LACNIC Region origin ASes present in the Internet Routing Table: 4470 LACNIC Prefixes per ASN: 12.25 LACNIC Region origin ASes announcing only one prefix: 1594 LACNIC Region transit ASes present in the Internet Routing Table: 888 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 27 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3465 Number of LACNIC addresses announced to Internet: 107872864 Equivalent to 6 /8s, 110 /16s and 2 /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: 10561 Total AfriNIC prefixes after maximum aggregation: 2507 AfriNIC Deaggregation factor: 4.21 Prefixes being announced from the AfriNIC address blocks: 16474 Unique aggregates announced from the AfriNIC address blocks: 8008 AfriNIC Region origin ASes present in the Internet Routing Table: 294 AfriNIC Prefixes per ASN: 56.03 AfriNIC Region origin ASes announcing only one prefix: 120 AfriNIC Region transit ASes present in the Internet Routing Table: 83 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 163 Number of AfriNIC addresses announced to Internet: 45450496 Equivalent to 2 /8s, 181 /16s and 133 /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 13115 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3276 828 194 CMNET-JIANGSU-AP China Mobile communicati 17561 2386 150 558 LCS-AS-AP LARUS Limited, HK 56041 1741 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1720 192 50 CMNET-HUNAN-AP China Mobile communication 24444 982 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 884 480 53 CMNET-JIANGXI-AP China Mobile communicati 24547 880 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 726 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 602 2169 463 SINET-AS Research Organization of Informa 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 14271 37209 5400 AMAZON-02, US 22773 4774 3099 370 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 36352 2536 209 1165 AS-COLOCROSSING, US 6167 1968 4170 530 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1840 1970 846 DNIC-ASBLK-00306-00371, US 209 1644 4884 265 CENTURYLINK-US-LEGACY-QWEST, US 19901 1456 711 723 BRIGHTSPEED, US 20057 1436 1001 112 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 4833 298 66 ALJAWWALSTC-AS, SA 20940 1202 93 987 AKAMAI-ASN1, NL 25019 1128 1335 138 SAUDINETSTC-AS, SA 8452 983 1841 16 TE-AS TE-AS, EG 3215 895 4819 296 France Telecom - Orange, FR 212238 683 48 600 CDNEXT, GB 58224 589 266 416 TCI, IR 51167 565 113 248 CONTABO, DE 8376 563 53 25 Jordan Data Communications, JO 5511 535 130 452 OPENTRANSIT, FR 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 7407 1968 777 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1615 230 1175 Telmex Colombia S.A., CO 11664 1353 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1345 778 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1265 371 22 Telefonica del Peru S.A.A., PE 26615 1006 2486 56 TIM SA, BR 18881 916 1127 31 TELEFONICA BRASIL S.A, BR 52468 668 42 198 UFINET PANAMA S.A., PA 12252 658 164 24 America Movil Peru S.A.C., PE 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 1417 339 74 RAYA-AS, EG 24863 1050 389 22 LINKdotNET-AS, EG 37069 897 1096 13 MOBINIL, EG 36992 664 1124 323 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 36935 502 128 132 Vodafone-, EG 36903 470 211 336 MT-MPLS, MA 29571 426 94 22 ORANGE-COTE-IVOIRE, CI 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 14271 37209 5400 AMAZON-02, US 9808 13115 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7407 1968 777 UNINET, MX 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4774 3099 370 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3276 828 194 CMNET-JIANGSU-AP China Mobile communicati 749 3217 54766 2468 DNIC-AS-00749, US 36352 2536 209 1165 AS-COLOCROSSING, US 17561 2386 150 558 LCS-AS-AP LARUS Limited, HK 11830 1992 369 65 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 13115 12995 CHINAMOBILE-CN China Mobile Communications Grou 8151 7407 6630 UNINET, MX 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4774 4404 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3276 3082 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 17561 2386 1828 LCS-AS-AP LARUS Limited, HK 11776 1908 1692 ATLANTICBB-JOHNSTOWN, US 56047 1720 1670 CMNET-HUNAN-AP China Mobile communications corp 56041 1741 1662 CMNET-ZHEJIANG-AP China Mobile communications c 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 1782 UNALLOCATED 8.42.19.0/24 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 26295 UNALLOCATED 12.110.210.0/23 7018 ATT-INTERNET4, US 12114 UNALLOCATED 12.129.100.0/24 7018 ATT-INTERNET4, US 22538 UNALLOCATED 12.131.3.0/24 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 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.155.185.0/24 Origin: 401541 OSIE, US 23.155.185.0/24 Transit: 397423 TIER-NET, US 23.178.24.0/24 Origin: 53850 GORILLASERVERS, US 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, 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 /10:32 /11:51 /12:156 /13:214 /14:582 /15:1066 /16:7473 /17:3454 /18:4163 /19:7696 /20:12974 /21:16316 /22:28899 /23:29539 /24:174147 /25:61 /26:83 /27:50 /28:18 /29:6 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4055 7407 UNINET, MX 39891 3521 4833 ALJAWWALSTC-AS, SA 22773 3052 4774 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2429 14271 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1062 1456 BRIGHTSPEED, US 11664 1029 1353 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1008 2536 AS-COLOCROSSING, US 209 957 1644 CENTURYLINK-US-LEGACY-QWEST, US 10620 955 1615 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:31 2:490 3:972 4:5 5:1163 6:175 7:5 8:622 9:5 11:171 12:886 13:513 14:177 15:356 16:278 17:3 18:906 20:201 21:4 22:188 23:2773 24:606 27:63 29:19 31:468 32:13 34:6 35:182 36:3316 37:698 38:2467 39:776 40:268 41:1034 42:28 43:225 44:26 45:4454 46:954 47:161 49:19 50:489 51:518 52:1394 54:282 55:1101 56:11 57:32 58:19 59:42 60:74 61:59 62:592 63:728 64:2134 65:1021 66:2427 67:1115 68:489 69:1215 70:435 71:160 72:718 74:987 75:305 76:239 77:449 78:552 79:260 80:357 81:417 82:810 83:190 84:351 85:594 86:238 87:191 88:275 89:640 90:103 91:925 92:633 93:960 94:940 95:1303 96:308 97:52 98:402 99:262 100:21 101:21 102:460 103:1189 104:1724 105:193 107:1685 108:525 109:369 110:91 111:2613 112:1187 113:31 114:34 115:56 116:66 117:1456 118:72 119:88 120:1723 121:36 122:75 123:112 124:67 125:49 128:558 129:384 130:688 131:1110 132:552 133:221 134:519 135:132 136:687 137:500 138:1013 139:441 140:710 141:372 142:1330 143:899 144:413 145:194 146:683 147:509 148:1002 149:726 150:281 151:870 152:765 153:244 154:2371 155:1066 156:2153 157:452 158:634 159:810 160:627 161:710 162:1002 163:425 164:765 165:624 166:576 167:698 168:1493 169:171 170:1941 171:102 172:1558 173:789 174:275 175:97 176:533 177:927 178:593 179:895 180:44 181:2437 182:29 183:1535 184:438 185:3434 186:3161 187:1696 188:895 189:1920 190:6385 191:585 192:5072 193:1705 194:1120 195:883 196:776 197:1080 198:2702 199:2484 200:4375 201:3700 202:1065 203:802 204:2179 205:1840 206:1509 207:1723 208:1572 209:1945 210:406 211:500 212:1020 213:746 214:944 215:39 216:2446 217:537 218:635 219:29 220:79 221:517 222:29 223:1591 End of report