IPv4 R&E Routing Table Report 23:00 GMT Thu 07 May, 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: 1043534 Prefixes after maximum aggregation (per Origin AS): 400723 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 516467 Number of IPv4 prefixes with a valid ROA: 641496 Number of IPv4 prefixes with an invalid ROA: 519 Number of IPv4 prefixes with no ROA: 401519 Total ASes present in the Internet Routing Table: 78379 Prefixes per ASN: 13.31 Origin-only ASes present in the Internet Routing Table: 67185 Origin ASes announcing only one prefix: 27397 Transit ASes present in the Internet Routing Table: 11194 Transit-only ASes present in the Internet Routing Table: 596 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 988 Number of instances of unregistered ASNs: 1017 Number of 32-bit ASNs allocated by the RIRs: 49667 Number of 32-bit ASNs visible in the Routing Table: 40548 Prefixes from 32-bit ASNs in the Routing Table: 229380 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 422 Number of addresses announced to Internet: 3102958848 Equivalent to 184 /8s, 243 /16s and 101 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 341029 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 284939 Total APNIC prefixes after maximum aggregation: 82740 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 271625 Unique aggregates announced from the APNIC address blocks: 107928 APNIC Region origin ASes present in the Internet Routing Table: 15167 APNIC Prefixes per ASN: 17.91 APNIC Region origin ASes announcing only one prefix: 4595 APNIC Region transit ASes present in the Internet Routing Table: 2057 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10767 Number of APNIC addresses announced to Internet: 747671552 Equivalent to 44 /8s, 144 /16s and 144 /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: 301816 Total ARIN prefixes after maximum aggregation: 136342 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301159 Unique aggregates announced from the ARIN address blocks: 147555 ARIN Region origin ASes present in the Internet Routing Table: 19417 ARIN Prefixes per ASN: 15.51 ARIN Region origin ASes announcing only one prefix: 7128 ARIN Region transit ASes present in the Internet Routing Table: 1892 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5565 Number of ARIN addresses announced to Internet: 1347902720 Equivalent to 80 /8s, 87 /16s and 93 /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, 393216-404380 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: 289911 Total RIPE prefixes after maximum aggregation: 143230 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 293110 Unique aggregates announced from the RIPE address blocks: 191241 RIPE Region origin ASes present in the Internet Routing Table: 29457 RIPE Prefixes per ASN: 9.95 RIPE Region origin ASes announcing only one prefix: 12213 RIPE Region transit ASes present in the Internet Routing Table: 4085 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13389 Number of RIPE addresses announced to Internet: 733283584 Equivalent to 43 /8s, 181 /16s and 5 /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: 128712 Total LACNIC prefixes after maximum aggregation: 30852 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 123088 Unique aggregates announced from the LACNIC address blocks: 50285 LACNIC Region origin ASes present in the Internet Routing Table: 11396 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2728 LACNIC Region transit ASes present in the Internet Routing Table: 2583 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: 9442 Number of LACNIC addresses announced to Internet: 169706752 Equivalent to 10 /8s, 29 /16s and 133 /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: 37168 Total AfriNIC prefixes after maximum aggregation: 6953 AfriNIC Deaggregation factor: 5.35 Prefixes being announced from the AfriNIC address blocks: 54130 Unique aggregates announced from the AfriNIC address blocks: 19093 AfriNIC Region origin ASes present in the Internet Routing Table: 2016 AfriNIC Prefixes per ASN: 26.85 AfriNIC Region origin ASes announcing only one prefix: 733 AfriNIC Region transit ASes present in the Internet Routing Table: 381 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1385 Number of AfriNIC addresses announced to Internet: 104199168 Equivalent to 6 /8s, 53 /16s and 244 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13870 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5884 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4936 552 322 BBIL-AP BHARTI Airtel Ltd., IN 18403 4527 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4061 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3717 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3538 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3365 1868 100 VNPT-AS-VN VNPT Corp, VN 17561 3069 193 546 LCS-AS-AP LARUS Limited, HK 24560 2832 785 696 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 14935 41294 5695 AMAZON-02 - Amazon.com, Inc., US 22773 4785 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4650 308 1048 CABLEONE - CABLE ONE, INC., US 7155 3867 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3718 1305 75 SHAW - Shaw Communications, CA 396982 3336 4864 505 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2721 222 905 AS-COLOCROSSING - HostPapa, US 7029 2636 2560 918 WINDSTREAM - Windstream Communications LL 30036 2612 359 455 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7183 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3877 357 2289 M247, RO 20940 3795 3389 110 AKAMAI-ASN1, NL 12389 3143 2321 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2770 202 2042 CDNEXT, GB 34984 2499 368 586 TELLCOM-AS, TR 8452 1709 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12765 3266 636 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2422 506 351 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1374 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1228 379 23 INTEGRATEL PERU S.A.A., PE 22884 1073 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1071 2392 100 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 2027 649 36 RAYA-AS, EG 36992 1860 1533 334 ETISALAT-MISR, EG 24863 1272 389 16 LINKdotNET-AS, EG 36935 1238 521 42 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1070 70 18 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 328608 563 53 157 Africa-on-Cloud-AS, ZA 36914 555 82 3 KENET-AS, 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 14935 41294 5695 AMAZON-02 - Amazon.com, Inc., US 9808 13870 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12765 3266 636 UNINET, MX 12479 7183 1711 149 UNI2-AS, ES 7545 5884 826 483 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4936 552 322 BBIL-AP BHARTI Airtel Ltd., IN 22773 4785 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4650 308 1048 CABLEONE - CABLE ONE, INC., US 18403 4527 347 26 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 13870 13749 CHINAMOBILE-CN China Mobile Communications Grou 8151 12765 12129 UNINET, MX 12479 7183 7034 UNI2-AS, ES 7545 5884 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4936 4614 BBIL-AP BHARTI Airtel Ltd., IN 18403 4527 4501 FPT-AS-AP FPT Telecom Company, VN 22773 4785 4420 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4061 4033 VIETEL-AS-AP Viettel Group, VN 7155 3867 3777 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 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 395476 UNALLOCATED 12.36.194.0/24 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 /10:39 /11:95 /12:297 /13:581 /14:1185 /15:2097 /16:13575 /17:8248 /18:13272 /19:25406 /20:45709 /21:52312 /22:113542 /23:107718 /24:659428 /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 6972 12765 UNINET, MX 12479 6120 7183 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 11492 3516 4650 CABLEONE - CABLE ONE, INC., US 6327 3499 3718 SHAW - Shaw Communications, CA 22773 3057 4785 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2822 3867 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2692 14935 AMAZON-02 - Amazon.com, Inc., US 30036 2265 2612 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2485 2:2018 3:1002 4:5 5:5175 6:200 7:6 8:1469 9:43 11:172 12:1179 13:714 14:2707 15:464 16:208 17:442 18:921 20:590 21:4 22:188 23:8261 24:2780 25:2 27:2805 28:1 29:19 31:3536 32:36 34:90 35:284 36:4760 37:4435 38:9638 39:1295 40:439 41:4578 42:2158 43:3165 44:451 45:19839 46:4882 47:439 48:127 49:2348 50:2010 51:678 52:1317 54:282 55:995 56:11 57:324 58:2362 59:1382 60:1175 61:3179 62:3122 63:1687 64:6376 65:2146 66:6103 67:3260 68:1503 69:4217 70:1060 71:607 72:3183 74:3051 75:1499 76:597 77:2959 78:2025 79:1791 80:2350 81:2241 82:4181 83:1453 84:2146 85:3840 86:1092 87:2490 88:1336 89:4777 90:812 91:8467 92:2791 93:3035 94:4392 95:4740 96:1452 97:309 98:945 99:830 100:70 101:1626 102:4529 103:33039 104:5347 105:856 106:900 107:2888 108:1268 109:4248 110:2292 111:4130 112:3174 113:1975 114:2282 115:2304 116:2159 117:3492 118:3035 119:2082 120:2711 121:1542 122:2989 123:2283 124:1708 125:3033 126:126 128:1566 129:962 130:1646 131:2473 132:888 133:486 134:1684 135:607 136:1538 137:1361 138:3349 139:1617 140:1770 141:1743 142:2564 143:2098 144:1778 145:638 146:2183 147:2254 148:2813 149:3107 150:1373 151:2911 152:2559 153:1550 154:9433 155:2305 156:4846 157:2397 158:1573 159:2873 160:3836 161:1966 162:4061 163:2545 164:2434 165:2672 166:1279 167:2311 168:4014 169:865 170:5611 171:1137 172:4739 173:3460 174:883 175:1366 176:3917 177:4849 178:4404 179:2348 180:3188 181:4563 182:4032 183:2829 184:2007 185:21882 186:6095 187:5000 188:4590 189:4533 190:9808 191:1686 192:11445 193:9626 194:7887 195:5798 196:3357 197:3314 198:6104 199:6066 200:8114 201:6396 202:10667 203:10656 204:4747 205:3691 206:4460 207:3818 208:4350 209:5408 210:4735 211:2688 212:5090 213:4096 214:1043 215:47 216:7294 217:3611 218:1704 219:416 220:2191 221:1344 222:937 223:3445 End of report