IPv4 R&E Routing Table Report 23:05 GMT Thu 25 Aug, 2022 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: 892355 Prefixes after maximum aggregation (per Origin AS): 339275 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 438256 Number of IPv4 prefixes with a valid ROA: 347287 Number of IPv4 prefixes with an invalid ROA: 1418 Number of IPv4 prefixes with no ROA: 543650 Total ASes present in the Internet Routing Table: 73397 Prefixes per ASN: 12.16 Origin-only ASes present in the Internet Routing Table: 63016 Origin ASes announcing only one prefix: 25947 Transit ASes present in the Internet Routing Table: 10381 Transit-only ASes present in the Internet Routing Table: 401 Paths with bogon ASNs present in the IPv4 Routing Table: 29 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 60 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 943 Number of instances of unregistered ASNs: 943 Number of 32-bit ASNs allocated by the RIRs: 40050 Number of 32-bit ASNs visible in the Routing Table: 33195 Prefixes from 32-bit ASNs in the Routing Table: 158439 Number of bogon 32-bit ASNs visible in the Routing Table: 4 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 509 Number of addresses announced to Internet: 3068203776 Equivalent to 182 /8s, 225 /16s and 19 /24s Percentage of available address space announced: 82.9 Percentage of allocated address space announced: 82.9 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: 299972 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 230801 Total APNIC prefixes after maximum aggregation: 66752 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 225995 Unique aggregates announced from the APNIC address blocks: 96177 APNIC Region origin ASes present in the Internet Routing Table: 12818 APNIC Prefixes per ASN: 17.63 APNIC Region origin ASes announcing only one prefix: 3701 APNIC Region transit ASes present in the Internet Routing Table: 1752 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8114 Number of APNIC addresses announced to Internet: 772646144 Equivalent to 46 /8s, 13 /16s and 165 /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, 131072-151865 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: 263400 Total ARIN prefixes after maximum aggregation: 120476 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 263791 Unique aggregates announced from the ARIN address blocks: 127614 ARIN Region origin ASes present in the Internet Routing Table: 18981 ARIN Prefixes per ASN: 13.90 ARIN Region origin ASes announcing only one prefix: 6920 ARIN Region transit ASes present in the Internet Routing Table: 1858 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4578 Number of ARIN addresses announced to Internet: 1293624832 Equivalent to 77 /8s, 27 /16s and 38 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 252529 Total RIPE prefixes after maximum aggregation: 118081 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 249749 Unique aggregates announced from the RIPE address blocks: 153173 RIPE Region origin ASes present in the Internet Routing Table: 28174 RIPE Prefixes per ASN: 8.86 RIPE Region origin ASes announcing only one prefix: 12061 RIPE Region transit ASes present in the Internet Routing Table: 4023 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 40 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10788 Number of RIPE addresses announced to Internet: 717512448 Equivalent to 42 /8s, 196 /16s and 95 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 116349 Total LACNIC prefixes after maximum aggregation: 27669 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 115981 Unique aggregates announced from the LACNIC address blocks: 48964 LACNIC Region origin ASes present in the Internet Routing Table: 10972 LACNIC Prefixes per ASN: 10.57 LACNIC Region origin ASes announcing only one prefix: 2675 LACNIC Region transit ASes present in the Internet Routing Table: 2241 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8705 Number of LACNIC addresses announced to Internet: 176300032 Equivalent to 10 /8s, 130 /16s and 32 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 28333 Total AfriNIC prefixes after maximum aggregation: 5568 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 36330 Unique aggregates announced from the AfriNIC address blocks: 11894 AfriNIC Region origin ASes present in the Internet Routing Table: 1678 AfriNIC Prefixes per ASN: 21.65 AfriNIC Region origin ASes announcing only one prefix: 590 AfriNIC Region transit ASes present in the Internet Routing Table: 327 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 60 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1010 Number of AfriNIC addresses announced to Internet: 107833088 Equivalent to 6 /8s, 109 /16s and 103 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9112 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5922 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3583 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3518 1042 61 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3377 1877 67 VNPT-AS-VN VNPT Corp, VN 9498 2425 499 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2260 11124 597 KIXS-AS-KR Korea Telecom, KR 24560 2189 851 407 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 45090 2143 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2126 425 216 TATACOMM-AS TATA Communications formerl 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 6877 10407 2730 AMAZON-02, US 11492 4537 301 574 CABLEONE, US 7155 3906 265 32 VIASAT-SP-BACKBONE, US 22773 3816 3064 350 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3471 1790 2503 AKAMAI-AS, US 6327 3451 1319 63 SHAW, CA 749 3036 50728 2294 DNIC-AS-00749, US 30036 2609 370 237 MEDIACOM-ENTERPRISE-BUSINESS, US 396982 2529 3387 364 GOOGLE-CLOUD-PLATFORM, US 209 2366 4936 406 CENTURYLINK-US-LEGACY-QWEST, 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 6885 1730 144 UNI2-AS, ES 20940 4057 3359 194 AKAMAI-ASN1, NL 39891 4006 234 46 ALJAWWALSTC-AS, SA 8551 3997 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2888 2290 909 ROSTELECOM-AS, RU 6849 2759 355 21 UKRTELNET, UA 9009 2582 251 1324 M247, GB 34984 2250 358 631 TELLCOM-AS, TR 58224 1768 927 523 TCI, IR 13188 1610 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 10878 3394 558 Uninet S.A. de C.V., MX 10620 3507 516 779 Telmex Colombia S.A., CO 11830 2339 369 64 Instituto Costarricense de Electricidad 13999 1973 320 512 Mega Cable, S.A. de C.V., MX 28573 1358 2327 267 Claro NXT Telecomunicacoes Ltda, BR 6503 1289 338 521 Axtel, S.A.B. de C.V., MX 3816 1272 699 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1129 369 21 Telefonica del Peru S.A.A., PE 11664 1054 180 468 Techtel LMDS Comunicaciones Interactiva 26615 979 2466 43 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 24863 1602 393 21 LINKdotNET-AS, EG 24835 1546 521 31 RAYA-AS, EG 36992 1324 1519 268 ETISALAT-MISR, EG 36903 1268 550 99 MT-MPLS, MA 29571 990 67 42 ORANGE-COTE-IVOIRE, CI 36935 810 520 42 Vodafone-, EG 6713 611 1863 34 IAM-AS, MA 15399 520 52 39 WANANCHI-, KE 37342 481 32 1 MOVITEL, MZ 23889 400 232 16 MauritiusTelecom, MU 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 8151 10878 3394 558 Uninet S.A. de C.V., MX 9808 9112 8883 47 CHINAMOBILE-CN China Mobile Communicati 12479 6885 1730 144 UNI2-AS, ES 16509 6877 10407 2730 AMAZON-02, US 7545 5922 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4537 301 574 CABLEONE, US 20940 4057 3359 194 AKAMAI-ASN1, NL 39891 4006 234 46 ALJAWWALSTC-AS, SA 8551 3997 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 7155 3906 265 32 VIASAT-SP-BACKBONE, 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 9112 9065 CHINAMOBILE-CN China Mobile Communications Grou 12479 6885 6741 UNI2-AS, ES 7545 5922 5226 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 6877 4147 AMAZON-02, US 11492 4537 3963 CABLEONE, US 39891 4006 3960 ALJAWWALSTC-AS, SA 8551 3997 3958 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3906 3874 VIASAT-SP-BACKBONE, US 20940 4057 3863 AKAMAI-ASN1, NL 7552 3583 3563 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 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, US 394856 UNALLOCATED 8.40.216.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.128.80.0/24 Origin: 397372 UNASSIGNED 23.128.80.0/24 Transit: 174 COGENT-174, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 37204 TELONE, ZW 41.57.124.0/23 Origin: 37442 UNASSIGNED 41.57.124.0/23 Transit: 37204 TELONE, ZW 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 /9:13 /10:38 /11:101 /12:299 /13:592 /14:1204 /15:2098 /16:13479 /17:8271 /18:13823 /19:24777 /20:43155 /21:50817 /22:107759 /23:95913 /24:529994 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5873 6885 UNI2-AS, ES 8151 4606 10878 Uninet S.A. de C.V., MX 8551 3455 3997 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3453 4537 CABLEONE, US 6327 3261 3451 SHAW, CA 39891 3189 4006 ALJAWWALSTC-AS, SA 7155 2995 3906 VIASAT-SP-BACKBONE, US 22773 2832 3816 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2616 2759 UKRTELNET, UA 30036 2265 2609 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1952 2:1023 3:157 4:5 5:3861 6:114 7:6 8:1551 9:1 11:172 12:1647 13:336 14:2355 15:245 16:47 17:377 18:195 20:243 21:4 22:188 23:5884 24:2401 25:6 27:2633 29:19 31:2414 32:92 34:7 35:87 36:1872 37:4478 38:3447 39:723 40:149 41:3927 42:1132 43:2214 44:292 45:16114 46:4149 47:301 49:1721 50:1947 51:239 52:1461 54:385 55:842 56:8 57:61 58:1725 59:1111 60:975 61:2286 62:2541 63:1920 64:5526 65:2357 66:4834 67:2961 68:1205 69:4142 70:1313 71:681 72:3022 74:2632 75:1403 76:585 77:2253 78:1907 79:3125 80:2025 81:1638 82:1483 83:1209 84:1368 85:2982 86:738 87:1905 88:1179 89:3391 90:548 91:7627 92:2037 93:2534 94:3517 95:3879 96:1298 97:350 98:1025 99:722 100:77 101:1290 102:2276 103:29761 104:4547 105:469 106:887 107:2548 108:873 109:4323 110:2000 111:3295 112:2051 113:1473 114:1480 115:1983 116:1886 117:2479 118:2325 119:1839 120:1763 121:1025 122:2515 123:2068 124:1538 125:2074 128:1168 129:1029 130:1004 131:2044 132:807 133:378 134:1931 135:300 136:857 137:876 138:2500 139:1509 140:936 141:1439 142:1317 143:1409 144:1199 145:341 146:1842 147:1507 148:2207 149:1773 150:859 151:1080 152:1882 153:465 154:3611 155:1451 156:1688 157:1274 158:1042 159:2200 160:2512 161:1324 162:3496 163:1374 164:1628 165:1640 166:774 167:1782 168:3777 169:881 170:4511 171:841 172:3332 173:3126 174:1020 175:1154 176:3614 177:4739 178:3573 179:2206 180:2374 181:3236 182:3192 183:1935 184:2375 185:19631 186:4533 187:3849 188:3974 189:3420 190:9007 191:1454 192:10960 193:8685 194:7080 195:5046 196:3045 197:2428 198:5951 199:6010 200:7555 201:5796 202:10111 203:9952 204:4516 205:3444 206:3687 207:3393 208:4046 209:4687 210:4142 211:2296 212:4005 213:3466 214:1125 215:66 216:6372 217:2637 218:1269 219:406 220:1750 221:949 222:655 223:1967 End of report