Routing Table Report 04:00 +10GMT Fri 23 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 373804
Prefixes after maximum aggregation: 168215
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184959
Total ASes present in the Internet Routing Table: 38851
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 32216
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5214
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1359
Unregistered ASNs in the Routing Table: 761
Number of 32-bit ASNs allocated by the RIRs: 1757
Number of 32-bit ASNs visible in the Routing Table: 1421
Prefixes from 32-bit ASNs in the Routing Table: 3265
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 100
Number of addresses announced to Internet: 2479420416
Equivalent to 147 /8s, 200 /16s and 244 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 156034
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94121
Total APNIC prefixes after maximum aggregation: 30762
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 90651
Unique aggregates announced from the APNIC address blocks: 38197
APNIC Region origin ASes present in the Internet Routing Table: 4573
APNIC Prefixes per ASN: 19.82
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 88
Number of APNIC addresses announced to Internet: 627919200
Equivalent to 37 /8s, 109 /16s and 73 /24s
Percentage of available APNIC address space announced: 79.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 143867
Total ARIN prefixes after maximum aggregation: 73808
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115950
Unique aggregates announced from the ARIN address blocks: 47999
ARIN Region origin ASes present in the Internet Routing Table: 14676
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5653
ARIN Region transit ASes present in the Internet Routing Table: 1561
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804910336
Equivalent to 47 /8s, 249 /16s and 245 /24s
Percentage of available ARIN address space announced: 64.0
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: 89111
Total RIPE prefixes after maximum aggregation: 50283
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81884
Unique aggregates announced from the RIPE address blocks: 53960
RIPE Region origin ASes present in the Internet Routing Table: 15987
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7977
RIPE Region transit ASes present in the Internet Routing Table: 2502
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1011
Number of RIPE addresses announced to Internet: 489661056
Equivalent to 29 /8s, 47 /16s and 162 /24s
Percentage of available RIPE address space announced: 78.9
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: 34863
Total LACNIC prefixes after maximum aggregation: 7761
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34155
Unique aggregates announced from the LACNIC address blocks: 17903
LACNIC Region origin ASes present in the Internet Routing Table: 1522
LACNIC Prefixes per ASN: 22.44
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 307
Number of LACNIC addresses announced to Internet: 89191552
Equivalent to 5 /8s, 80 /16s and 244 /24s
Percentage of available LACNIC address space announced: 59.1
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: 8408
Total AfriNIC prefixes after maximum aggregation: 1993
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6512
Unique aggregates announced from the AfriNIC address blocks: 1979
AfriNIC Region origin ASes present in the Internet Routing Table: 486
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 3
Number of AfriNIC addresses announced to Internet: 27335424
Equivalent to 1 /8s, 161 /16s and 27 /24s
Percentage of available AfriNIC address space announced: 40.7
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 2505 11048 956 Korea Telecom (KIX)
17974 1991 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1599 303 86 TPG Internet Pty Ltd
4755 1555 639 169 TATA Communications formerly
7552 1416 1064 7 Vietel Corporation
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 BSNL National Internet Backbo
9583 1084 80 501 Sify Limited
4808 1071 2096 302 CNCGROUP IP network: China169
18101 952 118 141 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3561 3817 226 bellsouth.net, inc.
18566 1913 365 238 Covad Communications
1785 1825 680 123 PaeTec Communications, Inc.
7029 1705 1008 194 Windstream Communications Inc
4323 1626 1085 394 Time Warner Telecom
20115 1596 1543 633 Charter Communications
22773 1462 2907 99 Cox Communications, Inc.
30036 1418 263 679 Mediacom Communications Corp
19262 1396 4728 400 Verizon Global Networks
7018 1333 7050 870 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 789 352 13 Corbina telecom
34984 566 108 181 BILISIM TELEKOM
20940 542 181 420 Akamai Technologies European
6830 533 1813 325 UPC Distribution Services
3320 493 8167 381 Deutsche Telekom AG
3292 477 2082 407 TDC Tele Danmark
12479 474 594 8 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
3301 404 1904 353 TeliaNet Sweden
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1679 309 156 TVCABLE BOGOTA
8151 1415 2806 347 UniNet S.A. de C.V.
28573 1358 1013 76 NET Servicos de Comunicao S.A
7303 1156 678 170 Telecom Argentina Stet-France
14420 734 58 88 CORPORACION NACIONAL DE TELEC
6503 582 450 69 AVANTEL, S.A.
22047 580 322 17 VTR PUNTO NET S.A.
27947 568 55 81 Telconet S.A
3816 535 232 98 Empresa Nacional de Telecomun
11172 516 85 91 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 812 147 43 LINKdotNET AS number
8452 708 445 11 TEDATA
15475 451 74 8 Nile Online
36992 293 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 198 28 58 Vodacom Internet Company
29571 190 17 11 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3561 3817 226 bellsouth.net, inc.
23456 3265 773 1761 32-bit ASN transition
4766 2505 11048 956 Korea Telecom (KIX)
17974 1991 516 31 PT TELEKOMUNIKASI INDONESIA
18566 1913 365 238 Covad Communications
1785 1825 680 123 PaeTec Communications, Inc.
7029 1705 1008 194 Windstream Communications Inc
10620 1679 309 156 TVCABLE BOGOTA
4323 1626 1085 394 Time Warner Telecom
7545 1599 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1991 1960 PT TELEKOMUNIKASI INDONESIA
1785 1825 1702 PaeTec Communications, Inc.
18566 1913 1675 Covad Communications
4766 2505 1549 Korea Telecom (KIX)
10620 1679 1523 TVCABLE BOGOTA
7545 1599 1513 TPG Internet Pty Ltd
7029 1705 1511 Windstream Communications Inc
23456 3265 1504 32-bit ASN transition
7552 1416 1409 Vietel Corporation
4755 1555 1386 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 32-bit ASN transition
50.115.224.0/20 27257 Webair Internet Development I
Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:12 /10:27 /11:81 /12:235
/13:464 /14:801 /15:1415 /16:11979 /17:5987 /18:10027
/19:19826 /20:27090 /21:27091 /22:36573 /23:34926 /24:193866
/25:1119 /26:1331 /27:759 /28:167 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2198 3561 bellsouth.net, inc.
18566 1869 1913 Covad Communications
10620 1574 1679 TVCABLE BOGOTA
23456 1559 3265 32-bit ASN transition
7029 1402 1705 Windstream Communications Inc
30036 1375 1418 Mediacom Communications Corp
11492 1113 1151 Cable One
7011 1058 1183 Citizens Utilities
1785 1053 1825 PaeTec Communications, Inc.
22773 951 1462 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:383 2:212 4:15 5:1 6:3 8:352
12:1957 13:1 14:543 15:13 16:3 17:7
20:10 23:36 24:1681 27:945 31:541 32:64
33:4 34:2 36:4 38:742 40:108 41:2553
42:48 44:3 46:990 47:3 49:251 50:421
52:13 54:2 55:6 56:2 57:35 58:876
59:493 60:376 61:1175 62:1092 63:1938 64:4057
65:2305 66:3976 67:1947 68:1114 69:3187 70:815
71:377 72:1858 74:2460 75:349 76:341 77:869
78:751 79:477 80:1113 81:839 82:505 83:520
84:622 85:1087 86:406 87:869 88:351 89:1554
90:267 91:4113 92:532 93:1246 94:1322 95:860
96:437 97:275 98:931 99:37 101:209 103:313
106:70 107:52 108:77 109:1028 110:667 111:781
112:322 113:441 114:565 115:697 116:890 117:710
118:890 119:1212 120:332 121:686 122:1604 123:1003
124:1359 125:1392 128:240 129:179 130:164 131:579
132:120 133:21 134:216 135:53 136:212 137:139
138:288 139:109 140:493 141:279 142:388 143:410
144:482 145:60 146:471 147:215 148:641 149:258
150:153 151:191 152:448 153:177 154:6 155:394
156:203 157:359 158:145 159:462 160:325 161:207
162:339 163:177 164:507 165:373 166:535 167:433
168:751 169:146 170:860 171:84 172:1 173:1652
174:645 175:398 176:204 177:274 178:1014 180:1082
181:30 182:625 183:215 184:380 185:1 186:1443
187:672 188:943 189:852 190:5161 192:5912 193:5012
194:3525 195:3061 196:1230 197:167 198:3586 199:4123
200:5517 201:1621 202:8555 203:8503 204:4257 205:2337
206:2674 207:2826 208:4028 209:3465 210:2706 211:1467
212:2083 213:1774 214:781 215:76 216:4879 217:1606
218:552 219:339 220:1228 221:513 222:342 223:264
End of report
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