Routing Table Report 08:00 +10GMT Sun 07 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 359773
Prefixes after maximum aggregation: 163882
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182134
Total ASes present in the Internet Routing Table: 36860
Prefixes per ASN: 9.76
Origin-only ASes present in the Internet Routing Table: 31787
Origin ASes announcing only one prefix: 15321
Transit ASes present in the Internet Routing Table: 5073
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2409
Unregistered ASNs in the Routing Table: 672
Number of 32-bit ASNs allocated by the RIRs: 1625
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3027
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2506123520
Equivalent to 149 /8s, 96 /16s and 105 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 149028
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86221
Total APNIC prefixes after maximum aggregation: 28844
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 83628
Unique aggregates announced from the APNIC address blocks: 37618
APNIC Region origin ASes present in the Internet Routing Table: 4414
APNIC Prefixes per ASN: 18.95
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 671
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 622113792
Equivalent to 37 /8s, 20 /16s and 180 /24s
Percentage of available APNIC address space announced: 78.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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, 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: 140608
Total ARIN prefixes after maximum aggregation: 72611
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112775
Unique aggregates announced from the ARIN address blocks: 46857
ARIN Region origin ASes present in the Internet Routing Table: 14460
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5566
ARIN Region transit ASes present in the Internet Routing Table: 1466
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803287808
Equivalent to 47 /8s, 225 /16s and 51 /24s
Percentage of available ARIN address space announced: 63.8
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 87663
Total RIPE prefixes after maximum aggregation: 49510
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80926
Unique aggregates announced from the RIPE address blocks: 53250
RIPE Region origin ASes present in the Internet Routing Table: 15840
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7909
RIPE Region transit ASes present in the Internet Routing Table: 2490
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 484933120
Equivalent to 28 /8s, 231 /16s and 126 /24s
Percentage of available RIPE address space announced: 78.1
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 33331
Total LACNIC prefixes after maximum aggregation: 7518
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32774
Unique aggregates announced from the LACNIC address blocks: 17239
LACNIC Region origin ASes present in the Internet Routing Table: 1483
LACNIC Prefixes per ASN: 22.10
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 266
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 87339776
Equivalent to 5 /8s, 52 /16s and 179 /24s
Percentage of available LACNIC address space announced: 57.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8227
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 3.99
Prefixes being announced from the AfriNIC address blocks: 6507
Unique aggregates announced from the AfriNIC address blocks: 2410
AfriNIC Region origin ASes present in the Internet Routing Table: 480
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 26839808
Equivalent to 1 /8s, 153 /16s and 139 /24s
Percentage of available AfriNIC address space announced: 40.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1926 11036 641 Korea Telecom (KIX)
7545 1558 301 84 TPG Internet Pty Ltd
17974 1556 516 31 PT Telekomunikasi Indonesia
4755 1514 375 167 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1113 929 42 National Internet Backbone
9583 1070 78 491 Sify Limited
7552 999 1062 11 Vietel Corporation
17488 978 188 123 Hathway IP Over Cable Interne
4808 954 2008 275 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3570 3818 232 BellSouth.net Inc.
18566 1911 364 238 Covad Communications Co.
1785 1818 681 121 PaeTec Communications, Inc.
7029 1645 1031 210 Windstream Communications Inc
4323 1616 1098 401 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
19262 1413 4792 392 Verizon Online LLC
22773 1404 2900 90 Cox Communications Inc.
7018 1364 7084 892 AT&T Services, Inc.
2386 1251 520 900 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 BILISIM TELEKOM
6830 510 1788 316 UPC Broadband
20940 471 134 364 Akamai Technologies European
3292 470 2080 405 TDC Data Networks
12479 456 593 7 France Telecom Espana SA
8866 454 133 26 Bulgarian Telecommunication C
29049 433 32 54 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
8551 405 355 38 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1566 289 164 Types of queries are: POCs, o
28573 1266 996 67 Types of queries are: POCs, o
8151 1255 2748 351 Uninet S.A. de C.V.
7303 1044 577 163 Telecom Argentina S.A.
6503 757 450 76 Axtel, S.A.B. de C.V.
14420 703 56 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 232 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 512 101 91 Alestra, S. de R.L. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 785 130 130 LINKdotNET AS number
8452 770 445 11 TEDATA
15475 512 74 8 Nile Online
36992 305 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
33776 229 13 8 Starcomms Nigeria Limited
15706 226 32 6 Sudatel Internet Exchange Aut
24835 176 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3570 3818 232 BellSouth.net Inc.
23456 3027 729 1625 32-bit ASN transition
4766 1926 11036 641 Korea Telecom (KIX)
18566 1911 364 238 Covad Communications Co.
1785 1818 681 121 PaeTec Communications, Inc.
7029 1645 1031 210 Windstream Communications Inc
4323 1616 1098 401 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
10620 1566 289 164 Types of queries are: POCs, o
7545 1558 301 84 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1818 1697 PaeTec Communications, Inc.
18566 1911 1673 Covad Communications Co.
17974 1556 1525 PT Telekomunikasi Indonesia
7545 1558 1474 TPG Internet Pty Ltd
7029 1645 1435 Windstream Communications Inc
23456 3027 1402 32-bit ASN transition
10620 1566 1402 Types of queries are: POCs, o
4755 1514 1347 TATA Communications formerly
22773 1404 1314 Cox Communications Inc.
4766 1926 1285 Korea Telecom (KIX)
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 65535 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.192.96.0/21 44611 Talk Internet
31.209.136.0/21 51896 Hringdu ehf
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/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 /8:21 /9:12 /10:27 /11:80 /12:234
/13:465 /14:799 /15:1410 /16:12014 /17:5880 /18:9860
/19:19606 /20:26319 /21:26283 /22:34683 /23:33664 /24:187903
/25:12 /26:20 /27:23 /28:158 /29:110 /30:59
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2206 3570 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
23456 1490 3027 32-bit ASN transition
10620 1461 1566 Types of queries are: POCs, o
7029 1324 1645 Windstream Communications Inc
11492 1095 1141 CABLE ONE, INC.
7011 1058 1160 Frontier Communications of Am
1785 1053 1818 PaeTec Communications, Inc.
6478 935 963 AT&T Services, Inc.
22773 903 1404 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:348 2:43 4:15 5:1 6:3 8:338
12:1958 13:1 14:486 15:15 16:3 17:5
20:10 23:19 24:1672 27:850 31:516 32:59
33:4 34:2 36:4 38:722 40:106 41:2566
42:38 44:3 46:1070 47:3 49:206 50:386
52:13 54:2 55:5 56:2 57:34 58:809
59:483 60:376 61:1007 62:1058 63:1922 64:3972
65:2291 66:3898 67:1892 68:1092 69:3037 70:771
71:372 72:1864 74:2423 75:327 76:341 77:861
78:704 79:477 80:1122 81:838 82:507 83:468
84:683 85:1074 86:517 87:834 88:335 89:1532
90:224 91:4001 92:527 93:1122 94:1334 95:870
96:415 97:265 98:890 99:37 100:1 101:74
103:182 106:79 107:30 108:72 109:1048 110:614
111:719 112:296 113:404 114:533 115:636 116:955
117:647 118:788 119:1149 120:200 121:653 122:1564
123:960 124:1335 125:1283 128:208 129:166 130:165
131:575 132:94 133:21 134:206 135:52 136:213
137:132 138:296 139:113 140:460 141:271 142:364
143:422 144:470 145:58 146:450 147:214 148:613
149:251 150:149 151:190 152:345 153:182 154:4
155:400 156:196 157:324 158:139 159:391 160:317
161:197 162:307 163:151 164:515 165:364 166:531
167:431 168:740 169:151 170:830 171:81 172:1
173:1626 174:617 175:378 176:148 177:199 178:1014
180:794 181:26 182:463 183:237 184:359 185:1
186:1341 187:733 188:915 189:970 190:5088 192:5865
193:4979 194:3506 195:3057 196:1194 197:113 198:3530
199:3972 200:5463 201:1473 202:8068 203:8310 204:4178
205:2288 206:2586 207:2729 208:3988 209:3386 210:2605
211:1400 212:2104 213:1749 214:773 215:70 216:4865
217:1626 218:518 219:343 220:1191 221:464 222:312
223:237
End of report
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