Routing Table Report 04:00 +10GMT Tue 01 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 380060
Prefixes after maximum aggregation: 166306
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 186471
Total ASes present in the Internet Routing Table: 39183
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 32350
Origin ASes announcing only one prefix: 15491
Transit ASes present in the Internet Routing Table: 5263
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1581
Unregistered ASNs in the Routing Table: 844
Number of 32-bit ASNs allocated by the RIRs: 1918
Number of 32-bit ASNs visible in the Routing Table: 1570
Prefixes from 32-bit ASNs in the Routing Table: 3632
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2489386624
Equivalent to 148 /8s, 97 /16s and 6 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 160081
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94832
Total APNIC prefixes after maximum aggregation: 30996
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91274
Unique aggregates announced from the APNIC address blocks: 38092
APNIC Region origin ASes present in the Internet Routing Table: 4589
APNIC Prefixes per ASN: 19.89
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 718
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 99
Number of APNIC addresses announced to Internet: 629464160
Equivalent to 37 /8s, 132 /16s and 220 /24s
Percentage of available APNIC address space announced: 79.8
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: 145857
Total ARIN prefixes after maximum aggregation: 74461
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117786
Unique aggregates announced from the ARIN address blocks: 48180
ARIN Region origin ASes present in the Internet Routing Table: 14727
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5648
ARIN Region transit ASes present in the Internet Routing Table: 1557
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: 804702720
Equivalent to 47 /8s, 246 /16s and 202 /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: 91204
Total RIPE prefixes after maximum aggregation: 50845
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 83862
Unique aggregates announced from the RIPE address blocks: 54307
RIPE Region origin ASes present in the Internet Routing Table: 16078
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7974
RIPE Region transit ASes present in the Internet Routing Table: 2529
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1094
Number of RIPE addresses announced to Internet: 491287488
Equivalent to 29 /8s, 72 /16s and 115 /24s
Percentage of available RIPE address space announced: 79.1
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: 35795
Total LACNIC prefixes after maximum aggregation: 7894
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 35228
Unique aggregates announced from the LACNIC address blocks: 18484
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 22.85
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 281
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: 361
Number of LACNIC addresses announced to Internet: 92658368
Equivalent to 5 /8s, 133 /16s and 218 /24s
Percentage of available LACNIC address space announced: 61.4
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: 8572
Total AfriNIC prefixes after maximum aggregation: 2034
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6675
Unique aggregates announced from the AfriNIC address blocks: 1996
AfriNIC Region origin ASes present in the Internet Routing Table: 498
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27930368
Equivalent to 1 /8s, 170 /16s and 47 /24s
Percentage of available AfriNIC address space announced: 41.6
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 2513 11129 973 Korea Telecom (KIX)
17974 1831 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1613 303 86 TPG Internet Pty Ltd
4755 1540 637 174 TATA Communications formerly
7552 1393 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1091 80 499 Sify Limited
4808 1090 2103 312 CNCGROUP IP network: China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 954 166 150 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 3543 3814 220 bellsouth.net, inc.
7029 2332 1016 197 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1840 680 122 PaeTec Communications, Inc.
4323 1622 1078 388 Time Warner Telecom
20115 1597 1547 622 Charter Communications
22773 1460 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1395 253 668 Mediacom Communications Corp
7018 1313 7029 858 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 1523 416 14 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 590 108 180 BILISIM TELEKOM
20940 529 177 414 Akamai Technologies European
3320 507 8169 387 Deutsche Telekom AG
12479 479 596 9 Uni2 Autonomous System
3292 478 2074 405 TDC Tele Danmark
8866 461 133 26 Bulgarian Telecommunication C
8551 403 354 44 Bezeq International
31148 403 22 112 FreeNet ISP
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 1699 314 156 TVCABLE BOGOTA
28573 1473 1042 72 NET Servicos de Comunicao S.A
8151 1422 2929 353 UniNet S.A. de C.V.
7303 1232 749 178 Telecom Argentina Stet-France
27947 589 72 83 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 568 434 67 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 537 233 95 Empresa Nacional de Telecomun
11172 525 86 96 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 801 146 36 LINKdotNET AS number
8452 653 446 12 TEDATA
15475 443 74 8 Nile Online
36992 296 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
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 3543 3814 220 bellsouth.net, inc.
4766 2513 11129 973 Korea Telecom (KIX)
7029 2332 1016 197 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1840 680 122 PaeTec Communications, Inc.
17974 1831 519 33 PT TELEKOMUNIKASI INDONESIA
10620 1699 314 156 TVCABLE BOGOTA
4323 1622 1078 388 Time Warner Telecom
7545 1613 303 86 TPG Internet Pty Ltd
20115 1597 1547 622 Charter Communications
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2332 2135 Windstream Communications Inc
18566 2094 1917 Covad Communications
17974 1831 1798 PT TELEKOMUNIKASI INDONESIA
1785 1840 1718 PaeTec Communications, Inc.
10620 1699 1543 TVCABLE BOGOTA
4766 2513 1540 Korea Telecom (KIX)
7545 1613 1527 TPG Internet Pty Ltd
8402 1523 1509 Corbina telecom
28573 1473 1401 NET Servicos de Comunicao S.A
7552 1393 1385 Vietel Corporation
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.0.0/16 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /12:236
/13:465 /14:810 /15:1425 /16:12029 /17:6076 /18:10086
/19:19946 /20:27545 /21:27549 /22:37190 /23:35202 /24:197921
/25:1162 /26:1351 /27:758 /28:161 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2183 3543 bellsouth.net, inc.
18566 2043 2094 Covad Communications
7029 2002 2332 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1498 1523 Corbina telecom
30036 1356 1395 Mediacom Communications Corp
11492 1117 1155 Cable One
1785 1055 1840 PaeTec Communications, Inc.
7011 1050 1168 Citizens Utilities
22773 948 1460 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:412 2:493 4:15 5:1 6:3 8:360
12:1947 13:1 14:543 15:11 16:3 17:7
20:9 23:60 24:1666 27:974 31:654 32:61
33:2 34:2 36:4 38:757 40:110 41:2697
42:53 44:3 46:1022 47:3 49:298 50:442
52:13 55:6 56:2 57:46 58:892 59:491
60:361 61:1174 62:1089 63:1960 64:4061 65:2301
66:4280 67:1991 68:1155 69:3202 70:882 71:383
72:1802 73:64 74:2606 75:393 76:318 77:879
78:866 79:473 80:1137 81:826 82:521 83:526
84:620 85:1145 86:402 87:920 88:354 89:1600
90:237 91:4244 92:530 93:1537 94:1304 95:1083
96:434 97:284 98:927 99:37 101:222 103:417
106:70 107:79 108:72 109:1050 110:659 111:795
112:334 113:484 114:614 115:708 116:881 117:721
118:904 119:1255 120:339 121:694 122:1563 123:1016
124:1352 125:1351 128:244 129:189 130:159 131:626
132:148 133:21 134:220 135:54 136:160 137:140
138:286 139:123 140:489 141:312 142:389 143:415
144:491 145:63 146:462 147:218 148:642 149:267
150:165 151:194 152:445 153:178 154:7 155:389
156:208 157:359 158:154 159:484 160:333 161:214
162:371 163:173 164:511 165:369 166:539 167:438
168:743 169:146 170:874 171:86 172:4 173:1714
174:674 175:422 176:282 177:364 178:1088 180:1127
181:36 182:652 183:221 184:381 185:1 186:1303
187:776 188:950 189:1122 190:5146 192:5925 193:5047
194:3561 195:3112 196:1236 197:166 198:3618 199:4163
200:5525 201:1681 202:8576 203:8489 204:4296 205:2362
206:2672 207:2829 208:4029 209:3575 210:2724 211:1462
212:2078 213:1779 214:802 215:96 216:4922 217:1603
218:564 219:341 220:1254 221:515 222:343 223:264
End of report