* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Mon 11 Jun, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 405949
Prefixes after maximum aggregation: 172848
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 201750
Total ASes present in the Internet Routing Table: 38646
Prefixes per ASN: 10.50
Origin-only ASes present in the Internet Routing Table: 33320
Origin ASes announcing only one prefix: 15700
Transit ASes present in the Internet Routing Table: 5326
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1193
Unregistered ASNs in the Routing Table: 231
Number of 32-bit ASNs allocated by the RIRs: 2823
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6218
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 156
Number of addresses announced to Internet: 2581476096
Equivalent to 153 /8s, 222 /16s and 51 /24s
Percentage of available address space announced: 69.6
Percentage of allocated address space announced: 69.7
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 92.8
Total number of prefixes smaller than registry allocations: 166944
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94875
Total APNIC prefixes after maximum aggregation: 31086
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 92377
Unique aggregates announced from the APNIC address blocks: 40339
APNIC Region origin ASes present in the Internet Routing Table: 4660
APNIC Prefixes per ASN: 19.82
APNIC Region origin ASes announcing only one prefix: 1279
APNIC Region transit ASes present in the Internet Routing Table: 716
Average APNIC Region AS path length visible: 4.1
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: 646490368
Equivalent to 38 /8s, 136 /16s and 169 /24s
Percentage of available APNIC address space announced: 82.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 150331
Total ARIN prefixes after maximum aggregation: 76690
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120968
Unique aggregates announced from the ARIN address blocks: 51360
ARIN Region origin ASes present in the Internet Routing Table: 15098
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5752
ARIN Region transit ASes present in the Internet Routing Table: 1522
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 816477696
Equivalent to 48 /8s, 170 /16s and 118 /24s
Percentage of available ARIN address space announced: 65.1
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: 103123
Total RIPE prefixes after maximum aggregation: 54683
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 95170
Unique aggregates announced from the RIPE address blocks: 59870
RIPE Region origin ASes present in the Internet Routing Table: 16604
RIPE Prefixes per ASN: 5.73
RIPE Region origin ASes announcing only one prefix: 8067
RIPE Region transit ASes present in the Internet Routing Table: 2604
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 515760384
Equivalent to 30 /8s, 189 /16s and 225 /24s
Percentage of available RIPE address space announced: 83.1
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
59392-61439, 196608-199679
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: 41276
Total LACNIC prefixes after maximum aggregation: 8163
LACNIC Deaggregation factor: 5.06
Prefixes being announced from the LACNIC address blocks: 41649
Unique aggregates announced from the LACNIC address blocks: 20649
LACNIC Region origin ASes present in the Internet Routing Table: 1589
LACNIC Prefixes per ASN: 26.21
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 297
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: 101871616
Equivalent to 6 /8s, 18 /16s and 112 /24s
Percentage of available LACNIC address space announced: 67.5
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: 9283
Total AfriNIC prefixes after maximum aggregation: 2162
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 7318
Unique aggregates announced from the AfriNIC address blocks: 2190
AfriNIC Region origin ASes present in the Internet Routing Table: 540
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 121
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31834112
Equivalent to 1 /8s, 229 /16s and 192 /24s
Percentage of available AfriNIC address space announced: 47.4
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 1982 11104 732 Korea Telecom (KIX)
17974 1841 530 81 PT Telekomunikasi Indonesia
7545 1680 301 87 TPG Internet Pty Ltd
4755 1567 384 152 TATA Communications formerly
9829 1303 1085 28 National Internet Backbone
9583 1175 87 502 Sify Limited
7552 1133 1062 11 Vietel Corporation
24560 1028 385 163 Bharti Airtel Ltd., Telemedia
9498 966 291 64 BHARTI Airtel Ltd.
4808 950 1938 283 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 3409 3791 196 BellSouth.net Inc.
7029 3286 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
1785 1919 681 131 PaeTec Communications, Inc.
20115 1645 1570 616 Charter Communications
22773 1643 2911 121 Cox Communications Inc.
4323 1570 1059 384 tw telecom holdings, inc.
30036 1425 265 753 Mediacom Communications Corp
7018 1230 10062 830 AT&T Services, Inc.
11492 1189 216 356 CABLE ONE, INC.
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
8402 1591 544 16 Corbina telecom
2118 1226 97 14 EUnet/RELCOM Autonomous Syste
12479 714 699 84 France Telecom Espana SA
34984 705 188 171 BILISIM TELEKOM
31148 684 37 9 FreeNet ISP
6830 655 2217 424 UPC Broadband
20940 655 218 520 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
8551 504 364 61 Bezeq International
3320 489 8442 402 Deutsche Telekom AG
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 1932 342 205 Types of queries are: POCs, o
28573 1922 1184 48 Types of queries are: POCs, o
6503 1524 418 67 Axtel, S.A.B. de C.V.
7303 1437 901 193 Telecom Argentina S.A.
8151 1341 3049 332 Uninet S.A. de C.V.
26615 903 760 32 Tim Celular S.A.
27947 676 73 94 Telconet S.A
11172 645 107 74 Alestra, S. de R.L. de C.V.
3816 587 247 89 Types of queries are: POCs, o
22047 583 326 15 Types of queries are: POCs, o
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
8452 1327 958 13 TEDATA
24863 852 274 32 LINKdotNET AS number
6713 497 649 18 Itissalat Al-MAGHRIB
24835 321 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
33776 210 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
16637 159 664 88 MTN Network Solutions
29571 157 15 16 Ci Telecom Autonomous system
36923 157 20 4 Swift Networks Limited
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 3409 3791 196 BellSouth.net Inc.
7029 3286 1016 171 Windstream Communications Inc
18566 2092 382 181 Covad Communications Co.
4766 1982 11104 732 Korea Telecom (KIX)
10620 1932 342 205 Types of queries are: POCs, o
28573 1922 1184 48 Types of queries are: POCs, o
1785 1919 681 131 PaeTec Communications, Inc.
17974 1841 530 81 PT Telekomunikasi Indonesia
7545 1680 301 87 TPG Internet Pty Ltd
20115 1645 1570 616 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3286 3115 Windstream Communications Inc
18566 2092 1911 Covad Communications Co.
28573 1922 1874 Types of queries are: POCs, o
1785 1919 1788 PaeTec Communications, Inc.
17974 1841 1760 PT Telekomunikasi Indonesia
10620 1932 1727 Types of queries are: POCs, o
7545 1680 1593 TPG Internet Pty Ltd
8402 1591 1575 Corbina telecom
22773 1643 1522 Cox Communications Inc.
6503 1524 1457 Axtel, S.A.B. de C.V.
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.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
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.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
19577 UNALLOCATED 12.41.188.0/24 7832 WW/Precision Communi
13317 UNALLOCATED 12.44.10.0/24 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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
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 0 *
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
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
41.188.64.0/18 29544 Mauritanian Telecommunication
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 /8:20 /9:13 /10:29 /11:82 /12:236
/13:459 /14:826 /15:1500 /16:12244 /17:6267 /18:10538
/19:20661 /20:29437 /21:30721 /22:40251 /23:38081 /24:214007
/25:11 /26:21 /27:19 /28:152 /29:151 /30:81
/31:0 /32:142
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2927 3286 Windstream Communications Inc
6389 2128 3409 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1570 1591 Corbina telecom
30036 1365 1425 Mediacom Communications Corp
6503 1213 1524 Axtel, S.A.B. de C.V.
11492 1152 1189 CABLE ONE, INC.
8452 1122 1327 TEDATA
22773 1088 1643 Cox Communications Inc.
7011 1073 1188 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:553 2:644 3:1 4:13 5:50 6:3
8:425 12:1980 13:1 14:605 15:12 16:3
17:5 20:23 23:177 24:1773 27:1304 31:1003
32:51 33:2 34:2 36:9 37:694 38:807
40:127 41:3157 42:135 44:3 46:1422 47:2
49:399 50:557 52:13 54:12 55:5 56:1
57:27 58:910 59:492 60:253 61:1105 62:1004
63:2001 64:4227 65:2246 66:4441 67:2029 68:1158
69:3170 70:949 71:507 72:1823 74:2592 75:472
76:327 77:948 78:975 79:488 80:1219 81:940
82:671 83:543 84:508 85:1177 86:440 87:924
88:337 89:1722 90:293 91:4921 92:557 93:1352
94:1567 95:1210 96:362 97:315 98:896 99:35
100:8 101:257 103:1110 106:95 107:185 108:312
109:1364 110:761 111:918 112:408 113:596 114:622
115:838 116:934 117:703 118:907 119:1191 120:351
121:677 122:1632 123:1100 124:1324 125:1258 128:530
129:196 130:244 131:630 132:280 133:22 134:231
135:61 136:214 137:236 138:357 139:185 140:467
141:251 142:396 143:368 144:527 145:72 146:498
147:293 148:750 149:311 150:158 151:179 152:467
153:174 154:13 155:462 156:218 157:336 158:188
159:508 160:345 161:243 162:346 163:179 164:630
165:400 166:588 167:472 168:859 169:126 170:879
171:138 172:4 173:1764 174:604 175:425 176:542
177:813 178:1395 180:1219 181:91 182:1023 183:227
184:531 185:1 186:2321 187:1120 188:1340 189:1838
190:5612 192:5963 193:5521 194:4532 195:3379 196:1222
197:142 198:3600 199:4721 200:5794 201:1946 202:8340
203:8480 204:4264 205:2507 206:2679 207:2730 208:4004
209:3595 210:2702 211:1524 212:2037 213:1937 214:873
215:97 216:5072 217:1568 218:539 219:306 220:1230
221:553 222:287 223:309
End of report
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