IPv4 R&E Routing Table Report 23:00 GMT Mon 12 Oct, 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: 1077759 Prefixes after maximum aggregation (per Origin AS): 414943 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 536075 Number of IPv4 prefixes with a valid ROA: 761038 Number of IPv4 prefixes with an invalid ROA: 383 Number of IPv4 prefixes with no ROA: 316338 Total ASes present in the Internet Routing Table: 79395 Prefixes per ASN: 13.57 Origin-only ASes present in the Internet Routing Table: 67925 Origin ASes announcing only one prefix: 27864 Transit ASes present in the Internet Routing Table: 11470 Transit-only ASes present in the Internet Routing Table: 621 Paths with bogon ASNs present in the IPv4 Routing Table: 33 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: 1130 Number of instances of unregistered ASNs: 1152 Number of 32-bit ASNs allocated by the RIRs: 51644 Number of 32-bit ASNs visible in the Routing Table: 41874 Prefixes from 32-bit ASNs in the Routing Table: 243838 Number of bogon 32-bit ASNs visible in the Routing Table: 50 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 592 Number of addresses announced to Internet: 3125957632 Equivalent to 186 /8s, 82 /16s and 84 /24s Percentage of available address space announced: 84.4 Percentage of allocated address space announced: 84.4 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: 355178 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 291139 Total APNIC prefixes after maximum aggregation: 85546 APNIC Deaggregation factor: 3.40 Prefixes being announced from the APNIC address blocks: 279097 Unique aggregates announced from the APNIC address blocks: 110871 APNIC Region origin ASes present in the Internet Routing Table: 15392 APNIC Prefixes per ASN: 18.13 APNIC Region origin ASes announcing only one prefix: 4743 APNIC Region transit ASes present in the Internet Routing Table: 2080 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 11017 Number of APNIC addresses announced to Internet: 748984576 Equivalent to 44 /8s, 164 /16s and 153 /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: 314496 Total ARIN prefixes after maximum aggregation: 140068 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 311626 Unique aggregates announced from the ARIN address blocks: 153303 ARIN Region origin ASes present in the Internet Routing Table: 19504 ARIN Prefixes per ASN: 15.98 ARIN Region origin ASes announcing only one prefix: 7216 ARIN Region transit ASes present in the Internet Routing Table: 1982 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: 5832 Number of ARIN addresses announced to Internet: 1355248896 Equivalent to 80 /8s, 199 /16s and 117 /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: 300722 Total RIPE prefixes after maximum aggregation: 149739 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 306875 Unique aggregates announced from the RIPE address blocks: 201098 RIPE Region origin ASes present in the Internet Routing Table: 29901 RIPE Prefixes per ASN: 10.26 RIPE Region origin ASes announcing only one prefix: 12374 RIPE Region transit ASes present in the Internet Routing Table: 4190 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 54 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13969 Number of RIPE addresses announced to Internet: 750419456 Equivalent to 44 /8s, 186 /16s and 126 /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 196608-219547 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: 131765 Total LACNIC prefixes after maximum aggregation: 31806 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 125411 Unique aggregates announced from the LACNIC address blocks: 51586 LACNIC Region origin ASes present in the Internet Routing Table: 11527 LACNIC Prefixes per ASN: 10.88 LACNIC Region origin ASes announcing only one prefix: 2768 LACNIC Region transit ASes present in the Internet Routing Table: 2632 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9604 Number of LACNIC addresses announced to Internet: 167337984 Equivalent to 9 /8s, 249 /16s and 96 /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: 38507 Total AfriNIC prefixes after maximum aggregation: 7095 AfriNIC Deaggregation factor: 5.43 Prefixes being announced from the AfriNIC address blocks: 54158 Unique aggregates announced from the AfriNIC address blocks: 18733 AfriNIC Region origin ASes present in the Internet Routing Table: 2087 AfriNIC Prefixes per ASN: 25.95 AfriNIC Region origin ASes announcing only one prefix: 763 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 69 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1452 Number of AfriNIC addresses announced to Internet: 103656704 Equivalent to 6 /8s, 45 /16s and 173 /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 14024 8737 135 CHINAMOBILE-CN - China Mobile Communicati 9498 5102 560 328 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4705 347 24 FPT-VN - FPT Telecom Company, VN 7545 4641 833 275 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4085 1331 24 VIETEL-AS-AP - Viettel Group, VN 56046 3625 887 179 CMNET-Jiangsu-AP - China Mobile communica 7713 3443 1043 69 telkomnet-as-ap - PT Telekomunikasi Indon 45899 3408 1868 98 VNPT-AS-VN - VNPT Corp, VN 140292 3086 316 1814 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 24560 2384 538 663 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 18368 42593 5611 AMAZON-02 - Amazon.com, Inc., US 22773 4920 3320 458 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4628 307 1096 CABLEONE - CABLE ONE, INC., US 7155 4337 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3836 1305 73 SHAW - Shaw Communications, CA 396982 3545 5380 598 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3284 244 1154 AS-COLOCROSSING - HostPapa, US 749 3133 54647 2384 DNIC-AS-00749 - United States Department 7029 2909 2589 919 WINDSTREAM - Windstream Communications LL 31898 2817 1396 1180 ORACLE-BMC-31898 - Oracle Corporation, 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 6940 1709 149 UNI2-AS - Orange Espagne SA, ES 39891 5044 311 77 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4374 390 2675 M247 - M247 Europe SRL, RO 20940 3806 3388 106 AKAMAI-ASN1 - Akamai International B.V., 212238 3658 263 2779 CDNEXT - Datacamp Limited, GB 12389 3098 2329 860 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2523 155 28 KCELL-AS - Kcell JSC, KZ 34984 2518 370 614 TELLCOM-AS - Superonline Iletisim Hizmetl 3257 1743 2082 981 GTT-BACKBONE - GTT Communications Inc., U 8452 1731 1852 14 TE-AS - IDDQD-AS, EG 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 13271 3296 617 AS8151 - UNINET, MX 10620 3399 442 1122 AS10620 - Telmex Colombia S.A., CO 13999 2222 493 324 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1860 369 65 AS11830 - Instituto Costarricense de Elec 11664 1509 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1388 2433 268 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1267 762 225 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1148 361 57 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1098 73 384 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1078 75 54 AS27715 - Locaweb Servicos de Internet S/ 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 1972 481 26 Vodafone Data - Vodafone Data, EG 36992 1943 1543 326 ETISALAT MISR - ETISALAT MISR, EG 24863 1458 389 20 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1352 588 110 Office National des Postes et Telecommuni 36935 1295 523 49 Vodafone Data - Vodafone Data, EG 37069 1128 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 15399 806 57 60 Wananchi Group (Kenya) Limited - Wananchi 20011 562 162 174 Dimension Data - Dimension Data, ZA 36914 550 82 3 Kenya Education Network - Kenya Education 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 18368 42593 5611 AMAZON-02 - Amazon.com, Inc., US 9808 14024 8737 135 CHINAMOBILE-CN - China Mobile Communicati 8151 13271 3296 617 AS8151 - UNINET, MX 12479 6940 1709 149 UNI2-AS - Orange Espagne SA, ES 9498 5102 560 328 BBIL-AP - BHARTI Airtel Ltd., IN 39891 5044 311 77 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4920 3320 458 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4705 347 24 FPT-VN - FPT Telecom Company, VN 7545 4641 833 275 TPG-INTERNET-AP - TPG Telecom Limited, AU 11492 4628 307 1096 CABLEONE - CABLE ONE, INC., US 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 14024 13889 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13271 12654 AS8151 - UNINET, MX 12479 6940 6791 UNI2-AS - Orange Espagne SA, ES 39891 5044 4967 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5102 4774 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4705 4681 FPT-VN - FPT Telecom Company, VN 22773 4920 4462 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4641 4366 TPG-INTERNET-AP - TPG Telecom Limited, AU 7155 4337 4250 VIASAT-SP-BACKBONE - ViaSat,Inc., US 7552 4085 4061 VIETEL-AS-AP - Viettel Group, VN 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 4593 UNALLOCATED 2.26.176.0/24 10122 NETSTAR-AS-AP - NETSTAR 4593 UNALLOCATED 2.26.216.0/24 10122 NETSTAR-AS-AP - NETSTAR 4593 UNALLOCATED 2.26.219.0/24 10122 NETSTAR-AS-AP - NETSTAR 394928 UNALLOCATED 8.2.70.0/24 6461 ZAYO-6461 - Zayo Bandwi 23338 UNALLOCATED 8.14.84.0/22 400043 IBRIDGE-01 - IBRIDGE CL 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 8.33.224.0/24 174 COGENT-174 - Cogent Com 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.100.0/24 Origin: 401541 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.133.212.0/24 Origin: 18604 UNASSIGNED 23.133.212.0/24 Transit: 394625 WHITELABELIT - WhiteLabel IT Solutions C 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, 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 /11:97 /12:299 /13:588 /14:1190 /15:2131 /16:13707 /17:8246 /18:13251 /19:25488 /20:45633 /21:53379 /22:113682 /23:110957 /24:689042 /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 7426 13271 AS8151 - UNINET, MX 12479 5859 6940 UNI2-AS - Orange Espagne SA, ES 39891 3727 5044 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3602 3836 SHAW - Shaw Communications, CA 16509 3568 18368 AMAZON-02 - Amazon.com, Inc., US 11492 3509 4628 CABLEONE - CABLE ONE, INC., US 7155 3268 4337 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 3134 4920 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2234 3399 AS10620 - Telmex Colombia S.A., CO 30036 2178 2524 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2740 2:2912 3:1694 4:6 5:5568 6:211 7:6 8:1501 9:321 11:172 12:1085 13:1476 14:2716 15:489 16:326 17:469 18:1602 20:599 21:4 22:189 23:8605 24:2816 25:2 27:2939 28:8 29:19 31:3997 32:34 34:94 35:306 36:4931 37:4444 38:10571 39:1445 40:455 41:4605 42:2269 43:3527 44:531 45:20071 46:4992 47:475 48:171 49:2473 50:2021 51:1029 52:1488 54:474 55:1154 56:11 57:332 58:2893 59:1497 60:1190 61:3280 62:3188 63:1676 64:6675 65:2278 66:6292 67:3326 68:1349 69:4155 70:1086 71:597 72:3359 74:3141 75:1756 76:600 77:2932 78:2166 79:1991 80:2396 81:2307 82:4447 83:1523 84:2166 85:3921 86:1150 87:2950 88:1379 89:4957 90:784 91:8545 92:2783 93:3076 94:4662 95:4764 96:1454 97:304 98:970 99:1162 100:65 101:1617 102:4752 103:33141 104:5807 105:961 106:970 107:3008 108:1680 109:4006 110:2240 111:4237 112:3210 113:1982 114:2627 115:2325 116:2114 117:3899 118:2990 119:2149 120:2852 121:1834 122:3065 123:2205 124:1982 125:3027 126:175 128:1590 129:994 130:1768 131:2621 132:957 133:483 134:1832 135:676 136:1585 137:1415 138:3431 139:1830 140:1894 141:1908 142:2736 143:2369 144:1931 145:720 146:2250 147:2431 148:2898 149:3581 150:1528 151:3158 152:2698 153:2221 154:8921 155:2373 156:4166 157:2581 158:1658 159:2990 160:4181 161:2169 162:4248 163:2755 164:2512 165:2801 166:1260 167:2416 168:4265 169:988 170:5595 171:1142 172:4951 173:3475 174:894 175:1436 176:4073 177:5629 178:4662 179:2840 180:3496 181:4710 182:4114 183:2888 184:2200 185:22071 186:6564 187:6068 188:4933 189:5008 190:10007 191:2007 192:11959 193:9617 194:8017 195:6016 196:3479 197:3277 198:6312 199:6170 200:8324 201:6950 202:10656 203:10724 204:4788 205:3726 206:4478 207:3876 208:4335 209:5453 210:4746 211:2724 212:5272 213:4137 214:1031 215:50 216:7329 217:3937 218:1926 219:414 220:2232 221:1469 222:981 223:3663 End of report