Routing Table Report 00:00 GMT Fri 23 Dec, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 391547
Prefixes after maximum aggregation: 169424
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 183864
Total ASes present in the Internet Routing Table: 39694
Prefixes per ASN: 9.86
Origin-only ASes present in the Internet Routing Table: 32600
Origin ASes announcing only one prefix: 15551
Transit ASes present in the Internet Routing Table: 5318
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 30
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 6303
Unregistered ASNs in the Routing Table: 1039
Number of 32-bit ASNs allocated by the RIRs: 2116
Number of 32-bit ASNs visible in the Routing Table: 1776
Prefixes from 32-bit ASNs in the Routing Table: 4247
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2333215974
Equivalent to 139 /8s, 18 /16s and 12 /24s
Percentage of available address space announced: 63.0
Percentage of allocated address space announced: 63.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 164027
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94035
Total APNIC prefixes after maximum aggregation: 30271
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90463
Unique aggregates announced from the APNIC address blocks: 37215
APNIC Region origin ASes present in the Internet Routing Table: 4603
APNIC Prefixes per ASN: 19.65
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 745
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 123
Number of APNIC addresses announced to Internet: 615694080
Equivalent to 36 /8s, 178 /16s and 191 /24s
Percentage of available APNIC address space announced: 78.1
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: 149409
Total ARIN prefixes after maximum aggregation: 77049
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121353
Unique aggregates announced from the ARIN address blocks: 45959
ARIN Region origin ASes present in the Internet Routing Table: 14831
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5664
ARIN Region transit ASes present in the Internet Routing Table: 1523
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 666650632
Equivalent to 39 /8s, 188 /16s and 72 /24s
Percentage of available ARIN address space announced: 53.0
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: 97622
Total RIPE prefixes after maximum aggregation: 51898
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 88870
Unique aggregates announced from the RIPE address blocks: 53784
RIPE Region origin ASes present in the Internet Routing Table: 16237
RIPE Prefixes per ASN: 5.47
RIPE Region origin ASes announcing only one prefix: 8007
RIPE Region transit ASes present in the Internet Routing Table: 2582
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1237
Number of RIPE addresses announced to Internet: 478821772
Equivalent to 28 /8s, 138 /16s and 61 /24s
Percentage of available RIPE address space announced: 77.1
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: 37416
Total LACNIC prefixes after maximum aggregation: 8040
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 36827
Unique aggregates announced from the LACNIC address blocks: 18914
LACNIC Region origin ASes present in the Internet Routing Table: 1559
LACNIC Prefixes per ASN: 23.62
LACNIC Region origin ASes announcing only one prefix: 456
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 398
Number of LACNIC addresses announced to Internet: 94953480
Equivalent to 5 /8s, 168 /16s and 224 /24s
Percentage of available LACNIC address space announced: 62.9
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: 8566
Total AfriNIC prefixes after maximum aggregation: 2088
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6614
Unique aggregates announced from the AfriNIC address blocks: 2089
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 13.15
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30856960
Equivalent to 1 /8s, 214 /16s and 215 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1925 11097 659 Korea Telecom (KIX)
17974 1719 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4755 1513 385 155 Videsh Sanchar Nigam Ltd. Aut
7552 1420 1064 7 Vietel Corporation
9829 1168 989 28 BSNL National Internet Backbo
9583 1101 81 494 Sify Limited
24560 1009 385 167 Bharti Airtel Ltd.
4808 981 1944 276 CNCGROUP IP network: China169
18101 974 131 157 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3472 3814 220 bellsouth.net, inc.
7029 2959 1046 214 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1860 680 122 AppliedTheory Corporation
4323 1616 1081 385 Time Warner Telecom
20115 1611 1549 622 Charter Communications
22773 1515 2909 107 Cox Communications, Inc.
30036 1466 260 686 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1306 7013 858 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1578 480 15 Corbina telecom
2118 1352 99 14 EUnet/RELCOM Autonomous Syste
286 1096 806 197 KPNQwest Backbone AS
15557 1092 2161 64 LDCOM NETWORKS
6830 650 1928 414 UPC Distribution Services
34984 627 132 198 Tellcom Iletisim Hizmetleri
20940 558 179 446 Akamai Technologies European
12479 551 636 53 Uni2 Autonomous System
9116 541 326 32 Goldenlines main autonomous s
3292 531 2106 407 TDC Tele Danmark
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1719 318 157 TVCABLE BOGOTA
28573 1559 1063 81 Types of queries are: POCs, o
8151 1495 2962 349 Uninet S.A. de C.V.
7303 1249 752 174 Telecom Argentina Stet-France
27947 632 73 94 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 90 COLOMBIA TELECOMUNICACIONES S
6503 548 434 69 AVANTEL, S.A.
10481 547 429 25 Prima S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1036 958 13 TEDATA
24863 788 146 34 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3472 3814 220 bellsouth.net, inc.
7029 2959 1046 214 Windstream Communications Inc
18566 2094 383 177 Covad Communications
4766 1925 11097 659 Korea Telecom (KIX)
1785 1860 680 122 AppliedTheory Corporation
10620 1719 318 157 TVCABLE BOGOTA
17974 1719 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1626 303 86 TPG Internet Pty Ltd
4323 1616 1081 385 Time Warner Telecom
20115 1611 1549 622 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2959 2745 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1860 1738 AppliedTheory Corporation
17974 1719 1681 PT TELEKOMUNIKASI INDONESIA
8402 1578 1563 Corbina telecom
10620 1719 1562 TVCABLE BOGOTA
7545 1626 1540 TPG Internet Pty Ltd
28573 1559 1478 Types of queries are: POCs, o
7552 1420 1413 Vietel Corporation
22773 1515 1408 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54325 UNALLOCATED 8.12.54.0/24 3356 Level 3 Communicatio
54325 UNALLOCATED 8.12.57.0/24 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
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,
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
37.19.8.0/21 49964 VERIXI
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
64.21.192.0/20 11610 Internet Nebraska
64.21.212.0/22 11610 Internet Nebraska
64.21.216.0/21 11610 Internet Nebraska
66.129.0.0/19 3901 Higher Technology Services, I
66.175.222.0/23 30058 FDCservers.net LLC
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:81 /12:237
/13:465 /14:818 /15:1476 /16:12212 /17:6384 /18:10480
/19:20658 /20:29150 /21:28586 /22:38669 /23:36415 /24:204102
/25:69 /26:84 /27:111 /28:291 /29:114 /30:547
/31:52 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2567 2959 Windstream Communications Inc
6389 2116 3472 bellsouth.net, inc.
18566 2043 2094 Covad Communications
10620 1614 1719 TVCABLE BOGOTA
8402 1557 1578 Corbina telecom
30036 1426 1466 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1063 1860 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
15557 1042 1092 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:470 2:438 4:19 5:1 6:3 8:361
12:1946 13:1 14:580 15:11 16:3 17:7
20:9 23:78 24:1718 27:1131 31:735 32:122
33:2 34:2 36:4 37:6 38:776 39:1
40:114 41:3021 42:78 43:1 44:3 46:1147
47:3 49:282 50:473 52:13 55:6 56:2
57:52 58:929 59:487 60:344 61:1182 62:934
63:1980 64:4145 65:2306 66:4397 67:2021 68:1353
69:3243 70:972 71:408 72:1815 73:1 74:2694
75:444 76:332 77:947 78:872 79:481 80:1184
81:853 82:539 83:534 84:579 85:1168 86:750
87:906 88:355 89:1606 90:249 91:4380 92:542
93:1519 94:1350 95:1048 96:401 97:284 98:793
99:38 100:2 101:253 103:589 106:11 107:118
108:103 109:1432 110:699 111:826 112:423 113:516
114:603 115:719 116:909 117:732 118:901 119:1265
120:356 121:696 122:1570 123:1035 124:1359 125:1348
128:542 129:182 130:187 131:583 132:161 133:21
134:225 135:54 136:213 137:151 138:285 139:137
140:490 141:256 142:384 143:387 144:501 145:67
146:477 147:233 148:686 149:269 150:164 151:192
152:445 153:170 154:7 155:400 156:210 157:367
158:154 159:504 160:355 161:221 162:333 163:186
164:521 165:413 166:542 167:455 168:815 169:147
170:828 171:95 172:4 173:1817 174:607 175:440
176:323 177:425 178:1148 180:1233 181:39 182:679
183:263 184:407 185:1 186:1407 187:778 188:983
189:1171 190:5325 192:6002 193:5469 194:4322 195:3430
196:1299 197:174 198:3635 199:4243 200:5537 201:1691
202:8607 203:8552 204:4351 205:2420 206:2707 207:2837
208:4025 209:3601 210:2756 211:1481 212:1985 213:1807
214:803 215:93 216:4958 217:1513 218:573 219:337
220:1262 221:527 222:324 223:267
End of report
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