IPv4 R&E Routing Table Report 23:00 GMT Wed 11 Mar, 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: 1033947 Prefixes after maximum aggregation (per Origin AS): 397460 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510793 Number of IPv4 prefixes with a valid ROA: 622708 Number of IPv4 prefixes with an invalid ROA: 468 Number of IPv4 prefixes with no ROA: 410771 Total ASes present in the Internet Routing Table: 78012 Prefixes per ASN: 13.25 Origin-only ASes present in the Internet Routing Table: 66828 Origin ASes announcing only one prefix: 27265 Transit ASes present in the Internet Routing Table: 11184 Transit-only ASes present in the Internet Routing Table: 588 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1105 Number of instances of unregistered ASNs: 1134 Number of 32-bit ASNs allocated by the RIRs: 48954 Number of 32-bit ASNs visible in the Routing Table: 40043 Prefixes from 32-bit ASNs in the Routing Table: 224568 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 455 Number of addresses announced to Internet: 3110307584 Equivalent to 185 /8s, 99 /16s and 135 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 336906 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281067 Total APNIC prefixes after maximum aggregation: 81711 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 268281 Unique aggregates announced from the APNIC address blocks: 107150 APNIC Region origin ASes present in the Internet Routing Table: 15091 APNIC Prefixes per ASN: 17.78 APNIC Region origin ASes announcing only one prefix: 4606 APNIC Region transit ASes present in the Internet Routing Table: 2044 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: 10664 Number of APNIC addresses announced to Internet: 751996160 Equivalent to 44 /8s, 210 /16s and 141 /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: 303155 Total ARIN prefixes after maximum aggregation: 136903 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301740 Unique aggregates announced from the ARIN address blocks: 146916 ARIN Region origin ASes present in the Internet Routing Table: 19366 ARIN Prefixes per ASN: 15.58 ARIN Region origin ASes announcing only one prefix: 7086 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: 5504 Number of ARIN addresses announced to Internet: 1350766336 Equivalent to 80 /8s, 131 /16s and 15 /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: 284726 Total RIPE prefixes after maximum aggregation: 140833 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287332 Unique aggregates announced from the RIPE address blocks: 187095 RIPE Region origin ASes present in the Internet Routing Table: 29275 RIPE Prefixes per ASN: 9.81 RIPE Region origin ASes announcing only one prefix: 12158 RIPE Region transit ASes present in the Internet Routing Table: 4058 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13125 Number of RIPE addresses announced to Internet: 733367552 Equivalent to 43 /8s, 182 /16s and 77 /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: 127030 Total LACNIC prefixes after maximum aggregation: 30364 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 122746 Unique aggregates announced from the LACNIC address blocks: 49752 LACNIC Region origin ASes present in the Internet Routing Table: 11354 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2681 LACNIC Region transit ASes present in the Internet Routing Table: 2565 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: 9371 Number of LACNIC addresses announced to Internet: 170926336 Equivalent to 10 /8s, 48 /16s and 33 /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: 36864 Total AfriNIC prefixes after maximum aggregation: 6942 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 53393 Unique aggregates announced from the AfriNIC address blocks: 19478 AfriNIC Region origin ASes present in the Internet Routing Table: 2010 AfriNIC Prefixes per ASN: 26.56 AfriNIC Region origin ASes announcing only one prefix: 734 AfriNIC Region transit ASes present in the Internet Routing Table: 386 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1379 Number of AfriNIC addresses announced to Internet: 103040512 Equivalent to 6 /8s, 36 /16s and 70 /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 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5974 830 524 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4842 548 320 BBIL-AP BHARTI Airtel Ltd., IN 18403 4574 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4004 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3671 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3468 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3336 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 3000 865 513 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2820 177 550 LCS-AS-AP LARUS Limited, HK 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 14436 41229 5542 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3101 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4645 308 1018 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3708 1321 75 SHAW - Shaw Communications, CA 174 3461 8767 852 COGENT-174 - Cogent Communications, LLC, 396982 3292 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2702 222 891 AS-COLOCROSSING - HostPapa, US 16625 2690 1172 2089 AKAMAI-AS - Akamai Technologies, Inc., 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 7235 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3826 355 2245 M247, RO 20940 3822 3393 112 AKAMAI-ASN1, NL 12389 3143 2319 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2669 193 1956 CDNEXT, GB 34984 2462 366 575 TELLCOM-AS, TR 8452 1699 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1604 243 787 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 12730 3299 604 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2454 506 346 Mega Cable, S.A. de C.V., MX 11830 1956 369 65 Instituto Costarricense de Electricidad y 11664 1453 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1371 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1249 371 22 INTEGRATEL PERU S.A.A., PE 26615 1060 2475 94 TIM SA, BR 22884 1059 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2044 648 34 RAYA-AS, EG 36992 1848 1532 339 ETISALAT-MISR, EG 24863 1289 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1109 1100 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 555 82 3 KENET-AS, KE 328608 549 46 163 Africa-on-Cloud-AS, ZA 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 14436 41229 5542 AMAZON-02 - Amazon.com, Inc., US 9808 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12730 3299 604 UNINET, MX 12479 7235 1711 149 UNI2-AS, ES 7545 5974 830 524 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4842 548 320 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 3101 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4645 308 1018 CABLEONE - CABLE ONE, INC., US 18403 4574 347 25 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 13726 13606 CHINAMOBILE-CN China Mobile Communications Grou 8151 12730 12126 UNINET, MX 12479 7235 7086 UNI2-AS, ES 7545 5974 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4574 4549 FPT-AS-AP FPT Telecom Company, VN 9498 4842 4522 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4004 3975 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 55002 DEFENSE-NET - F5, Inc., 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 /12:298 /13:581 /14:1196 /15:2100 /16:13641 /17:8237 /18:13328 /19:25294 /20:45491 /21:52164 /22:113385 /23:106853 /24:651214 /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 6900 12730 UNINET, MX 12479 6172 7235 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3505 4645 CABLEONE - CABLE ONE, INC., US 6327 3488 3708 SHAW - Shaw Communications, CA 22773 3047 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2580 14436 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2664 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3453 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) ---------------------------------------------- 1:2494 2:1583 3:989 4:5 5:5184 6:196 7:6 8:1498 9:29 11:172 12:1195 13:650 14:2662 15:459 16:167 17:397 18:913 20:603 21:4 22:188 23:8176 24:2743 25:2 27:2819 28:1 29:19 31:3410 32:30 34:90 35:290 36:4638 37:4451 38:10118 39:1267 40:270 41:4550 42:2076 43:3033 44:445 45:19949 46:4897 47:410 48:89 49:2191 50:2076 51:602 52:1310 54:280 55:1119 56:11 57:316 58:2367 59:1364 60:1174 61:3108 62:3114 63:1754 64:6232 65:2116 66:6024 67:3262 68:1498 69:4231 70:1044 71:612 72:3104 74:2976 75:1496 76:591 77:2839 78:1907 79:1794 80:2331 81:2214 82:3985 83:1443 84:2041 85:3817 86:1103 87:2262 88:1353 89:4694 90:811 91:8414 92:2841 93:3008 94:4294 95:4596 96:1442 97:312 98:948 99:805 100:67 101:1607 102:4467 103:33003 104:5475 105:781 106:921 107:2854 108:1199 109:4225 110:2298 111:4062 112:3149 113:1976 114:2179 115:2284 116:2182 117:3429 118:3001 119:2061 120:2682 121:1507 122:2975 123:2248 124:1690 125:3009 126:125 128:1660 129:944 130:1587 131:2428 132:794 133:463 134:1643 135:586 136:1596 137:1354 138:3147 139:1646 140:1783 141:1585 142:2514 143:2137 144:1738 145:629 146:2194 147:2150 148:2781 149:3047 150:1343 151:2696 152:2279 153:945 154:9610 155:2322 156:4421 157:2266 158:1504 159:2763 160:3838 161:1946 162:4013 163:2385 164:2034 165:2627 166:1299 167:2253 168:3982 169:889 170:5559 171:1105 172:4571 173:3450 174:884 175:1366 176:3820 177:4995 178:4338 179:2298 180:3141 181:4450 182:4008 183:2821 184:2015 185:21749 186:5715 187:4970 188:4561 189:4507 190:9751 191:1585 192:11421 193:9591 194:7834 195:5708 196:3307 197:3313 198:6084 199:6108 200:8065 201:6385 202:10650 203:10619 204:4728 205:3716 206:4475 207:3870 208:4373 209:5372 210:4726 211:2686 212:4997 213:4084 214:1048 215:46 216:7261 217:3543 218:1678 219:420 220:2199 221:1312 222:937 223:3329 End of report