Routing Table Report 00:00 GMT Tue 17 Apr, 2012
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: 410581
Prefixes after maximum aggregation: 173878
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 197169
Total ASes present in the Internet Routing Table: 40763
Prefixes per ASN: 10.07
Origin-only ASes present in the Internet Routing Table: 33009
Origin ASes announcing only one prefix: 15620
Transit ASes present in the Internet Routing Table: 5515
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 30
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 6009
Unregistered ASNs in the Routing Table: 150
Number of 32-bit ASNs allocated by the RIRs: 2584
Number of 32-bit ASNs visible in the Routing Table: 2239
Prefixes from 32-bit ASNs in the Routing Table: 5574
Special use prefixes present in the Routing Table: 86
Prefixes being announced from unallocated address space: 112
Number of addresses announced to Internet: 2537511260
Equivalent to 151 /8s, 63 /16s and 89 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 174001
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97670
Total APNIC prefixes after maximum aggregation: 31191
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 94212
Unique aggregates announced from the APNIC address blocks: 39572
APNIC Region origin ASes present in the Internet Routing Table: 4664
APNIC Prefixes per ASN: 20.20
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 745
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 184
Number of APNIC addresses announced to Internet: 643435528
Equivalent to 38 /8s, 90 /16s and 12 /24s
Percentage of available APNIC address space announced: 81.6
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: 152621
Total ARIN prefixes after maximum aggregation: 78374
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123670
Unique aggregates announced from the ARIN address blocks: 50250
ARIN Region origin ASes present in the Internet Routing Table: 15053
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5718
ARIN Region transit ASes present in the Internet Routing Table: 1588
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807216128
Equivalent to 48 /8s, 29 /16s and 36 /24s
Percentage of available ARIN address space announced: 64.2
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: 103670
Total RIPE prefixes after maximum aggregation: 53781
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 94715
Unique aggregates announced from the RIPE address blocks: 58140
RIPE Region origin ASes present in the Internet Routing Table: 16510
RIPE Prefixes per ASN: 5.74
RIPE Region origin ASes announcing only one prefix: 8044
RIPE Region transit ASes present in the Internet Routing Table: 2661
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1507
Number of RIPE addresses announced to Internet: 509583500
Equivalent to 30 /8s, 95 /16s and 160 /24s
Percentage of available RIPE address space announced: 82.1
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: 41262
Total LACNIC prefixes after maximum aggregation: 8310
LACNIC Deaggregation factor: 4.97
Prefixes being announced from the LACNIC address blocks: 41038
Unique aggregates announced from the LACNIC address blocks: 20097
LACNIC Region origin ASes present in the Internet Routing Table: 1582
LACNIC Prefixes per ASN: 25.94
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 296
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 526
Number of LACNIC addresses announced to Internet: 99335432
Equivalent to 5 /8s, 235 /16s and 189 /24s
Percentage of available LACNIC address space announced: 65.8
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: 9569
Total AfriNIC prefixes after maximum aggregation: 2153
AfriNIC Deaggregation factor: 4.44
Prefixes being announced from the AfriNIC address blocks: 7608
Unique aggregates announced from the AfriNIC address blocks: 2176
AfriNIC Region origin ASes present in the Internet Routing Table: 537
AfriNIC Prefixes per ASN: 14.17
AfriNIC Region origin ASes announcing only one prefix: 169
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31694080
Equivalent to 1 /8s, 227 /16s and 157 /24s
Percentage of available AfriNIC address space announced: 47.2
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 1922 11108 694 Korea Telecom (KIX)
17974 1801 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1662 301 88 TPG Internet Pty Ltd
4755 1590 388 166 Videsh Sanchar Nigam Ltd. Aut
9583 1243 94 540 Sify Limited
9829 1235 1041 30 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
4808 1069 2026 312 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd.
18101 947 131 160 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 3428 3807 195 bellsouth.net, inc.
7029 3428 1020 170 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1903 680 129 AppliedTheory Corporation
20115 1644 1565 620 Charter Communications
4323 1597 1060 381 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1429 261 750 Mediacom Communications Corp
7018 1283 13886 831 AT&T WorldNet Services
11492 1186 216 364 Cable One
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 1727 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
286 1059 853 198 KPNQwest Backbone AS
34984 681 188 175 Tellcom Iletisim Hizmetleri
31148 679 37 9 FreeNet ISP
12479 658 661 62 Uni2 Autonomous System
6830 640 1943 411 UPC Distribution Services
20940 634 205 499 Akamai Technologies European
8551 598 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1809 327 176 TVCABLE BOGOTA
28573 1779 1107 59 Types of queries are: POCs, o
6503 1543 418 67 AVANTEL, S.A.
8151 1459 3002 328 Uninet S.A. de C.V.
7303 1357 827 190 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 689 74 98 Telconet S.A
11172 638 107 74 Alestra
22047 582 326 15 Types of queries are: POCs, o
3816 572 242 100 COLOMBIA TELECOMUNICACIONES S
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 1303 958 13 TEDATA
24863 846 274 33 LINKdotNET AS number
16284 543 4 13 GST-N Autonomous System
6713 491 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 YEBO-AS
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
29571 161 15 16 Ci Telecom Autonomous system
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 3428 3807 195 bellsouth.net, inc.
7029 3428 1020 170 Windstream Communications Inc
18566 2091 382 179 Covad Communications
4766 1922 11108 694 Korea Telecom (KIX)
1785 1903 680 129 AppliedTheory Corporation
10620 1809 327 176 TVCABLE BOGOTA
17974 1801 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1779 1107 59 Types of queries are: POCs, o
8402 1727 544 16 Corbina telecom
7545 1662 301 88 TPG Internet Pty Ltd
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 3428 3258 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1903 1774 AppliedTheory Corporation
17974 1801 1738 PT TELEKOMUNIKASI INDONESIA
28573 1779 1720 Types of queries are: POCs, o
8402 1727 1711 Corbina telecom
10620 1809 1633 TVCABLE BOGOTA
7545 1662 1574 TPG Internet Pty Ltd
6503 1543 1476 AVANTEL, S.A.
22773 1576 1465 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
23456 UNALLOCATED 8.10.2.0/24 3257 Tiscali Intl Network
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 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 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
10.29.245.27/32 286 KPNQwest Backbone AS
10.29.245.28/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
41.222.79.0/24 36938 >>UNKNOWN<<
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 /8:19 /9:12 /10:28 /11:81 /12:235
/13:460 /14:838 /15:1521 /16:12358 /17:6549 /18:10912
/19:21202 /20:30078 /21:30305 /22:41004 /23:38367 /24:214545
/25:92 /26:101 /27:113 /28:291 /29:255 /30:726
/31:20 /32:469
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3066 3428 Windstream Communications Inc
6389 2146 3428 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1704 1727 Corbina telecom
10620 1695 1809 TVCABLE BOGOTA
30036 1375 1429 Mediacom Communications Corp
6503 1300 1543 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1111 1303 TEDATA
1785 1069 1903 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:537 2:678 4:18 6:3 8:403 12:2004
13:1 14:604 15:12 16:3 17:7 20:8
23:159 24:1777 27:1271 31:1006 32:119 33:2
34:2 36:8 37:351 38:799 39:4 40:120
41:3194 42:136 44:3 46:1501 47:3 49:388
50:538 52:13 54:7 55:10 56:3 57:39
58:965 59:519 60:281 61:1276 62:991 63:2005
64:4186 65:2255 66:4522 67:2051 68:1337 69:3269
70:953 71:476 72:1848 73:1 74:2649 75:508
76:331 77:972 78:1009 79:504 80:1219 81:915
82:677 83:552 84:501 85:1215 86:431 87:932
88:354 89:1655 90:297 91:4744 92:525 93:1419
94:1481 95:1156 96:363 97:319 98:928 99:37
100:7 101:178 103:1000 106:105 107:185 108:231
109:1314 110:765 111:925 112:456 113:597 114:632
115:876 116:909 117:717 118:916 119:1225 120:353
121:830 122:1672 123:1097 124:1377 125:1266 128:562
129:197 130:255 131:596 132:173 133:21 134:246
135:62 136:212 137:177 138:355 139:160 140:491
141:244 142:388 143:406 144:516 145:69 146:499
147:289 148:805 149:301 150:160 151:176 152:464
153:172 154:8 155:446 156:215 157:382 158:177
159:523 160:338 161:259 162:353 163:190 164:572
165:412 166:571 167:464 168:819 169:128 170:859
171:127 172:4 173:1763 174:600 175:442 176:488
177:661 178:1340 180:1207 181:73 182:808 183:286
184:457 185:1 186:2213 187:1036 188:1191 189:1798
190:5551 192:6035 193:5575 194:4667 195:3627 196:1297
197:126 198:3652 199:4514 200:5814 201:1932 202:8543
203:8650 204:4350 205:2499 206:2776 207:2822 208:4077
209:3617 210:2786 211:1491 212:2062 213:1916 214:840
215:104 216:5112 217:1549 218:547 219:358 220:1237
221:557 222:329 223:334
End of report
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