This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 10 Jan, 2026 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1043088 Prefixes after maximum aggregation (per Origin AS): 395938 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 506392 Number of IPv4 prefixes with a valid ROA: 617144 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 425925 Total ASes present in the Internet Routing Table: 77829 Prefixes per ASN: 13.40 Origin-only ASes present in the Internet Routing Table: 66622 Origin ASes announcing only one prefix: 27101 Transit ASes present in the Internet Routing Table: 11207 Transit-only ASes present in the Internet Routing Table: 564 Paths with bogon ASNs present in the IPv4 Routing Table: 76 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 212 Max AS path prepend of ASN (214570) 200 Prefixes from unregistered ASNs in the Routing Table: 1029 Number of instances of unregistered ASNs: 1078 Number of 32-bit ASNs allocated by the RIRs: 48334 Number of 32-bit ASNs visible in the Routing Table: 39651 Prefixes from 32-bit ASNs in the Routing Table: 222271 Number of bogon 32-bit ASNs visible in the Routing Table: 110 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 474 Number of addresses announced to Internet: 3110181285 Equivalent to 185 /8s, 97 /16s and 153 /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: 338117 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 288885 Total APNIC prefixes after maximum aggregation: 82267 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 275774 Unique aggregates announced from the APNIC address blocks: 106842 APNIC Region origin ASes present in the Internet Routing Table: 15068 APNIC Prefixes per ASN: 18.30 APNIC Region origin ASes announcing only one prefix: 4576 APNIC Region transit ASes present in the Internet Routing Table: 2031 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10580 Number of APNIC addresses announced to Internet: 758658624 Equivalent to 45 /8s, 56 /16s and 54 /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: 303705 Total ARIN prefixes after maximum aggregation: 135000 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 303541 Unique aggregates announced from the ARIN address blocks: 145764 ARIN Region origin ASes present in the Internet Routing Table: 19389 ARIN Prefixes per ASN: 15.66 ARIN Region origin ASes announcing only one prefix: 7068 ARIN Region transit ASes present in the Internet Routing Table: 1982 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5446 Number of ARIN addresses announced to Internet: 1343690496 Equivalent to 80 /8s, 23 /16s and 23 /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: 284312 Total RIPE prefixes after maximum aggregation: 140158 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 285473 Unique aggregates announced from the RIPE address blocks: 184192 RIPE Region origin ASes present in the Internet Routing Table: 29146 RIPE Prefixes per ASN: 9.79 RIPE Region origin ASes announcing only one prefix: 12078 RIPE Region transit ASes present in the Internet Routing Table: 4037 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 212 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12925 Number of RIPE addresses announced to Internet: 733823745 Equivalent to 43 /8s, 189 /16s and 67 /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: 128066 Total LACNIC prefixes after maximum aggregation: 30895 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 123768 Unique aggregates announced from the LACNIC address blocks: 49776 LACNIC Region origin ASes present in the Internet Routing Table: 11338 LACNIC Prefixes per ASN: 10.92 LACNIC Region origin ASes announcing only one prefix: 2662 LACNIC Region transit ASes present in the Internet Routing Table: 2565 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9336 Number of LACNIC addresses announced to Internet: 170528352 Equivalent to 10 /8s, 42 /16s and 14 /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: 37091 Total AfriNIC prefixes after maximum aggregation: 6927 AfriNIC Deaggregation factor: 5.35 Prefixes being announced from the AfriNIC address blocks: 54057 Unique aggregates announced from the AfriNIC address blocks: 19439 AfriNIC Region origin ASes present in the Internet Routing Table: 1998 AfriNIC Prefixes per ASN: 27.06 AfriNIC Region origin ASes announcing only one prefix: 717 AfriNIC Region transit ASes present in the Internet Routing Table: 397 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 44 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1364 Number of AfriNIC addresses announced to Internet: 103176704 Equivalent to 6 /8s, 38 /16s and 90 /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 13578 9087 159 CHINAMOBILE-CN China Mobile Communication 7545 6026 833 572 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4841 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4671 543 337 BBIL-AP BHARTI Airtel Ltd., IN 45899 4408 1873 52 VNPT-AS-VN VNPT Corp, VN 18403 4329 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4059 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3730 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3555 853 235 CMNET-JIANGSU-AP China Mobile communicati 17561 3170 199 622 LCS-AS-AP LARUS Limited, HK Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14163 38629 5446 AMAZON-02, US 174 4905 8769 846 COGENT-174, US 22773 4774 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4634 308 1032 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3696 1321 70 SHAW, CA 396982 3323 4867 491 GOOGLE-CLOUD-PLATFORM, US 749 3143 54729 2394 DNIC-AS-00749, US 16625 2865 1234 2142 AKAMAI-AS, US 36352 2702 222 890 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7266 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3921 367 2244 M247, RO 20940 3866 3394 124 AKAMAI-ASN1, NL 12389 3184 2317 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2573 183 1870 CDNEXT, GB 34984 2424 372 576 TELLCOM-AS, TR 8452 1708 1852 14 TE-AS TE-AS, EG 203020 1622 243 799 HOSTROYALE, IN 13188 1603 100 42 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12701 3307 595 UNINET, MX 10620 3433 457 1107 Telmex Colombia S.A., CO 13999 2485 507 353 Mega Cable, S.A. de C.V., MX 11830 1990 369 65 Instituto Costarricense de Electricidad y 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1257 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 TIM SA, BR 18881 903 1127 31 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1982 638 33 RAYA-AS, EG 36992 1849 1534 341 ETISALAT-MISR, EG 24863 1264 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1110 524 47 Vodafone-, EG 37069 1099 1084 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 566 48 164 Africa-on-Cloud-AS, ZA 36914 563 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14163 38629 5446 AMAZON-02, US 9808 13578 9087 159 CHINAMOBILE-CN China Mobile Communication 8151 12701 3307 595 UNINET, MX 12479 7266 1711 149 UNI2-AS, ES 7545 6026 833 572 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 174 4905 8769 846 COGENT-174, US 4538 4841 4192 76 ERX-CERNET-BKB China Education and Resear 22773 4774 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4671 543 337 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13578 13419 CHINAMOBILE-CN China Mobile Communications Grou 8151 12701 12106 UNINET, MX 12479 7266 7117 UNI2-AS, ES 7545 6026 5454 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 4538 4841 4765 ERX-CERNET-BKB China Education and Research Net 22773 4774 4410 ASN-CXA-ALL-CCI-22773-RDC, US 45899 4408 4356 VNPT-AS-VN VNPT Corp, VN 9498 4671 4334 BBIL-AP BHARTI Airtel Ltd., IN 18403 4329 4305 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Guam/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, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 10.2.3.8/30 21996 GUAMCELL, US 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /11:93 /12:303 /13:583 /14:1203 /15:2107 /16:13814 /17:8431 /18:14147 /19:25609 /20:46770 /21:53386 /22:114750 /23:108354 /24:652686 /25:150 /26:111 /27:115 /28:40 /29:66 /30:10 /31:3 /32:287 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6878 12701 UNINET, MX 12479 6197 7266 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4634 CABLEONE, US 6327 3478 3696 SHAW, CA 22773 3047 4774 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2504 14163 AMAZON-02, US 30036 2308 2649 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3433 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2541 2:1506 3:990 4:11 5:5001 6:187 7:6 8:1542 9:14 11:172 12:1234 13:615 14:2698 15:418 16:275 17:392 18:917 20:603 21:4 22:188 23:8161 24:2672 25:2 27:2860 29:19 31:3404 32:35 34:85 35:292 36:4632 37:4504 38:11044 39:1240 40:437 41:4611 42:1938 43:3064 44:410 45:19803 46:5091 47:416 49:2193 50:2058 51:598 52:1258 54:233 55:1113 56:11 57:316 58:2402 59:1415 60:1175 61:3265 62:3132 63:1781 64:6142 65:2142 66:6025 67:3269 68:1502 69:4296 70:1023 71:625 72:3038 74:2984 75:1525 76:599 77:2761 78:1924 79:1798 80:2323 81:2110 82:3995 83:1480 84:2037 85:3679 86:1105 87:2375 88:1362 89:4638 90:828 91:8450 92:2835 93:3027 94:4307 95:4538 96:1475 97:312 98:955 99:787 100:69 101:1598 102:4517 103:32713 104:5461 105:1038 106:925 107:2816 108:1219 109:4272 110:2314 111:4088 112:2997 113:1984 114:2184 115:2339 116:2202 117:3277 118:3026 119:2194 120:2494 121:1591 122:3001 123:2413 124:1749 125:3003 126:125 128:1591 129:966 130:1573 131:2299 132:769 133:461 134:1643 135:537 136:1613 137:1247 138:3026 139:1676 140:1796 141:1563 142:2446 143:2108 144:1430 145:628 146:2204 147:2176 148:2795 149:2968 150:1326 151:2599 152:2258 153:922 154:9861 155:2332 156:4628 157:2268 158:1490 159:2739 160:3755 161:1994 162:4005 163:2331 164:1974 165:2662 166:1307 167:2204 168:3977 169:815 170:5476 171:1117 172:4566 173:3433 174:893 175:1378 176:3780 177:4852 178:4260 179:2359 180:3063 181:4474 182:3901 183:2705 184:2060 185:21766 186:5783 187:4850 188:4628 189:4547 190:9791 191:1542 192:11490 193:9518 194:7919 195:5774 196:3282 197:3192 198:6110 199:6109 200:8231 201:6474 202:11085 203:10886 204:4671 205:3708 206:4454 207:3856 208:4397 209:5463 210:5131 211:2868 212:4978 213:4060 214:1061 215:54 216:7178 217:3464 218:1689 219:624 220:2199 221:1307 222:1119 223:3285 End of report