IPv4 R&E Routing Table Report 23:00 GMT Sat 21 Feb, 2026 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 1033103 Prefixes after maximum aggregation (per Origin AS): 397010 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510173 Number of IPv4 prefixes with a valid ROA: 620576 Number of IPv4 prefixes with an invalid ROA: 791 Number of IPv4 prefixes with no ROA: 411736 Total ASes present in the Internet Routing Table: 77909 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66761 Origin ASes announcing only one prefix: 27253 Transit ASes present in the Internet Routing Table: 11148 Transit-only ASes present in the Internet Routing Table: 573 Paths with bogon ASNs present in the IPv4 Routing Table: 43 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 68 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1116 Number of instances of unregistered ASNs: 1146 Number of 32-bit ASNs allocated by the RIRs: 48811 Number of 32-bit ASNs visible in the Routing Table: 39878 Prefixes from 32-bit ASNs in the Routing Table: 223508 Number of bogon 32-bit ASNs visible in the Routing Table: 80 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 441 Number of addresses announced to Internet: 3112325632 Equivalent to 185 /8s, 130 /16s and 82 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 336165 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281653 Total APNIC prefixes after maximum aggregation: 82018 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 268178 Unique aggregates announced from the APNIC address blocks: 107281 APNIC Region origin ASes present in the Internet Routing Table: 15019 APNIC Prefixes per ASN: 17.86 APNIC Region origin ASes announcing only one prefix: 4576 APNIC Region transit ASes present in the Internet Routing Table: 2021 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10601 Number of APNIC addresses announced to Internet: 752260352 Equivalent to 44 /8s, 214 /16s and 149 /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: 303037 Total ARIN prefixes after maximum aggregation: 136338 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301797 Unique aggregates announced from the ARIN address blocks: 146886 ARIN Region origin ASes present in the Internet Routing Table: 19375 ARIN Prefixes per ASN: 15.58 ARIN Region origin ASes announcing only one prefix: 7092 ARIN Region transit ASes present in the Internet Routing Table: 1929 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5479 Number of ARIN addresses announced to Internet: 1351797504 Equivalent to 80 /8s, 146 /16s and 203 /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: 284404 Total RIPE prefixes after maximum aggregation: 140700 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287068 Unique aggregates announced from the RIPE address blocks: 186364 RIPE Region origin ASes present in the Internet Routing Table: 29257 RIPE Prefixes per ASN: 9.81 RIPE Region origin ASes announcing only one prefix: 12163 RIPE Region transit ASes present in the Internet Routing Table: 4054 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13066 Number of RIPE addresses announced to Internet: 732940544 Equivalent to 43 /8s, 175 /16s and 201 /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: 126152 Total LACNIC prefixes after maximum aggregation: 30308 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 121913 Unique aggregates announced from the LACNIC address blocks: 49640 LACNIC Region origin ASes present in the Internet Routing Table: 11339 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2679 LACNIC Region transit ASes present in the Internet Routing Table: 2554 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9349 Number of LACNIC addresses announced to Internet: 170779136 Equivalent to 10 /8s, 45 /16s and 226 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 36741 Total AfriNIC prefixes after maximum aggregation: 6925 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 53706 Unique aggregates announced from the AfriNIC address blocks: 19618 AfriNIC Region origin ASes present in the Internet Routing Table: 2015 AfriNIC Prefixes per ASN: 26.65 AfriNIC Region origin ASes announcing only one prefix: 743 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 52 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1383 Number of AfriNIC addresses announced to Internet: 103300096 Equivalent to 6 /8s, 40 /16s and 60 /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 13725 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5995 831 546 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4789 546 333 BBIL-AP BHARTI Airtel Ltd., IN 18403 4540 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4071 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3682 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3469 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3326 1868 99 VNPT-AS-VN VNPT Corp, VN 17561 3140 197 582 LCS-AS-AP LARUS Limited, HK 24560 2981 864 503 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14332 41156 5579 AMAZON-02 - Amazon.com, Inc., US 22773 4782 3099 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1021 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 174 3760 8769 863 COGENT-174 - Cogent Communications, LLC, 6327 3699 1321 71 SHAW - Shaw Communications, CA 396982 3324 4856 493 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3143 54728 2394 DNIC-AS-00749 - United States Department 16625 2778 1200 2115 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2695 221 892 AS-COLOCROSSING - HostPapa, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7236 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3829 3393 112 AKAMAI-ASN1, NL 9009 3799 354 2225 M247, RO 12389 3142 2316 868 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2633 190 1929 CDNEXT, GB 34984 2442 364 573 TELLCOM-AS, TR 8452 1673 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1602 243 781 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12712 3309 604 UNINET, MX 10620 3448 457 1103 Telmex Colombia S.A., CO 13999 2465 506 349 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 11664 1415 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1254 371 22 INTEGRATEL PERU S.A.A., PE 22884 1058 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1055 2475 94 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1984 648 34 RAYA-AS, EG 36992 1845 1532 339 ETISALAT-MISR, EG 24863 1283 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1199 523 46 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 561 47 172 Africa-on-Cloud-AS, ZA 15399 553 57 59 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14332 41156 5579 AMAZON-02 - Amazon.com, Inc., US 9808 13725 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12712 3309 604 UNINET, MX 12479 7236 1711 149 UNI2-AS, ES 7545 5995 831 546 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4789 546 333 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3099 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1021 CABLEONE - CABLE ONE, INC., US 18403 4540 347 24 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13725 13605 CHINAMOBILE-CN China Mobile Communications Grou 8151 12712 12108 UNINET, MX 12479 7236 7087 UNI2-AS, ES 7545 5995 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4540 4516 FPT-AS-AP FPT Telecom Company, VN 9498 4789 4456 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 4418 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4071 4042 VIETEL-AS-AP Viettel Group, VN 7155 3861 3776 VIASAT-SP-BACKBONE - ViaSat,Inc., US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 13450 UNALLOCATED 8.29.117.0/24 18712 EVERFAST-KC - Everfast 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:14 /10:40 /11:95 /12:299 /13:579 /14:1196 /15:2102 /16:13638 /17:8207 /18:13478 /19:25315 /20:45200 /21:52188 /22:113337 /23:106748 /24:650651 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6875 12712 UNINET, MX 12479 6164 7236 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4637 CABLEONE - CABLE ONE, INC., US 6327 3479 3699 SHAW - Shaw Communications, CA 22773 3053 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2604 14332 AMAZON-02 - Amazon.com, Inc., US 30036 2310 2655 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2228 3448 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2512 2:1551 3:981 4:9 5:5153 6:191 7:6 8:1498 9:26 11:172 12:1224 13:641 14:2659 15:454 16:174 17:399 18:917 20:600 21:4 22:188 23:8164 24:2631 25:2 27:2823 29:19 31:3467 32:31 34:84 35:290 36:4647 37:4445 38:10532 39:1267 40:443 41:4540 42:2016 43:3014 44:431 45:19926 46:4924 47:403 48:38 49:2208 50:2074 51:599 52:1280 54:260 55:1124 56:11 57:313 58:2362 59:1357 60:1173 61:3145 62:3123 63:1762 64:6234 65:2121 66:6024 67:3254 68:1492 69:4231 70:1043 71:611 72:3116 74:2946 75:1503 76:587 77:2830 78:1914 79:1790 80:2339 81:2218 82:4010 83:1465 84:2041 85:3824 86:1105 87:2258 88:1340 89:4701 90:810 91:8437 92:2840 93:3009 94:4318 95:4566 96:1449 97:313 98:952 99:792 100:69 101:1592 102:4431 103:32937 104:5513 105:791 106:923 107:2852 108:1213 109:4227 110:2303 111:4103 112:3150 113:1979 114:2176 115:2252 116:2189 117:3469 118:3029 119:2082 120:2676 121:1508 122:2964 123:2331 124:1679 125:3001 126:125 128:1658 129:947 130:1579 131:2346 132:778 133:461 134:1637 135:563 136:1622 137:1334 138:3093 139:1626 140:1787 141:1579 142:2483 143:2170 144:1712 145:628 146:2197 147:2197 148:2778 149:3000 150:1331 151:2698 152:2287 153:924 154:9797 155:2288 156:4649 157:2253 158:1496 159:2759 160:3728 161:1966 162:4022 163:2387 164:2021 165:2622 166:1282 167:2242 168:3945 169:885 170:5488 171:1121 172:4565 173:3445 174:890 175:1371 176:3803 177:4716 178:4366 179:2291 180:3188 181:4410 182:3964 183:2840 184:2004 185:21736 186:5624 187:4875 188:4557 189:4470 190:9733 191:1529 192:11404 193:9579 194:7835 195:5687 196:3266 197:3308 198:6079 199:6135 200:8049 201:6383 202:10593 203:10607 204:4718 205:3720 206:4439 207:3832 208:4353 209:5418 210:4737 211:2683 212:4983 213:4086 214:1068 215:54 216:7194 217:3514 218:1676 219:421 220:2195 221:1315 222:930 223:3313 End of report