The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Monday, December 9, 2013

[bgp-stats] Routing Table Report - Washington view

* BGP Routing Table Analysis Reports *
Routing Table Report 09:00 +10GMT Tue 10 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/us/

Analysis Summary
----------------

BGP routing table entries examined: 467331
Prefixes after maximum aggregation: 188616
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 235195
Total ASes present in the Internet Routing Table: 45513
Prefixes per ASN: 10.27
Origin-only ASes present in the Internet Routing Table: 35426
Origin ASes announcing only one prefix: 16270
Transit ASes present in the Internet Routing Table: 5822
Transit-only ASes present in the Internet Routing Table: 154
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 1001
Unregistered ASNs in the Routing Table: 262
Number of 32-bit ASNs allocated by the RIRs: 5480
Number of 32-bit ASNs visible in the Routing Table: 4265
Prefixes from 32-bit ASNs in the Routing Table: 13338
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1352
Number of addresses announced to Internet: 2655469920
Equivalent to 158 /8s, 71 /16s and 65 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163151

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 107983
Total APNIC prefixes after maximum aggregation: 33504
APNIC Deaggregation factor: 3.22
Prefixes being announced from the APNIC address blocks: 110219
Unique aggregates announced from the APNIC address blocks: 47840
APNIC Region origin ASes present in the Internet Routing Table: 4841
APNIC Prefixes per ASN: 22.77
APNIC Region origin ASes announcing only one prefix: 1227
APNIC Region transit ASes present in the Internet Routing Table: 820
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 781
Number of APNIC addresses announced to Internet: 727313152
Equivalent to 43 /8s, 89 /16s and 235 /24s
Percentage of available APNIC address space announced: 85.0

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161836
Total ARIN prefixes after maximum aggregation: 81351
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162553
Unique aggregates announced from the ARIN address blocks: 75676
ARIN Region origin ASes present in the Internet Routing Table: 15875
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6004
ARIN Region transit ASes present in the Internet Routing Table: 1615
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 44
Number of ARIN addresses announced to Internet: 1072686336
Equivalent to 63 /8s, 239 /16s and 229 /24s
Percentage of available ARIN address space announced: 56.7

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119136
Total RIPE prefixes after maximum aggregation: 61132
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122988
Unique aggregates announced from the RIPE address blocks: 79117
RIPE Region origin ASes present in the Internet Routing Table: 17521
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8277
RIPE Region transit ASes present in the Internet Routing Table: 2792
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2514
Number of RIPE addresses announced to Internet: 656174688
Equivalent to 39 /8s, 28 /16s and 110 /24s
Percentage of available RIPE address space announced: 95.4

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, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52591
Total LACNIC prefixes after maximum aggregation: 9811
LACNIC Deaggregation factor: 5.36
Prefixes being announced from the LACNIC address blocks: 57832
Unique aggregates announced from the LACNIC address blocks: 27422
LACNIC Region origin ASes present in the Internet Routing Table: 2040
LACNIC Prefixes per ASN: 28.35
LACNIC Region origin ASes announcing only one prefix: 555
LACNIC Region transit ASes present in the Internet Routing Table: 386
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 918
Number of LACNIC addresses announced to Internet: 146172928
Equivalent to 8 /8s, 182 /16s and 108 /24s
Percentage of available LACNIC address space announced: 87.1

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11745
Total AfriNIC prefixes after maximum aggregation: 2589
AfriNIC Deaggregation factor: 4.54
Prefixes being announced from the AfriNIC address blocks: 12387
Unique aggregates announced from the AfriNIC address blocks: 4076
AfriNIC Region origin ASes present in the Internet Routing Table: 692
AfriNIC Prefixes per ASN: 17.90
AfriNIC Region origin ASes announcing only one prefix: 207
AfriNIC Region transit ASes present in the Internet Routing Table: 137
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48666112
Equivalent to 2 /8s, 230 /16s and 150 /24s
Percentage of available AfriNIC address space announced: 48.3

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2723 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2156 11550 652 Korea Telecom (KIX)
7545 1959 319 109 TPG Internet Pty Ltd
4755 1780 391 189 TATA Communications formerly
9829 1544 1248 47 BSNL National Internet Backbo
9583 1418 113 570 Sify Limited
9498 1218 309 71 BHARTI Airtel Ltd.
7552 1171 1080 13 Vietel Corporation
24560 1098 382 166 Bharti Airtel Ltd., Telemedia
4808 1081 2022 310 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3038 3688 53 BellSouth.net Inc.
22773 2302 2939 139 Cox Communications, Inc.
18566 2053 379 178 MegaPath Corporation
1785 2048 686 132 PaeTec Communications, Inc.
20115 1681 1657 596 Charter Communications
4323 1645 1113 417 Time Warner Telecom
701 1506 11144 777 MCI Communications Services,
30036 1381 311 576 Mediacom Communications Corp
7018 1334 17797 872 AT&T WorldNet Services
6983 1293 771 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1893 544 16 OJSC "Vimpelcom"
34984 1366 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1173 444 880 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 898 99 42 TOV "Bank-Inform"
6849 854 363 39 JSC UKRTELECOM,
8551 794 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3431 1829 94 NET Servicos de Comunicao S.A
10620 2693 436 200 Telmex Colombia S.A.
7303 1735 1161 230 Telecom Argentina Stet-France
18881 1721 908 20 Global Village Telecom
8151 1355 2852 418 UniNet S.A. de C.V.
11830 869 364 15 Instituto Costarricense de El
27947 823 94 90 Telconet S.A
6147 789 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 772 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 414 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
29571 250 21 13 Ci Telecom Autonomous system
3741 247 921 209 The Internet Solution
36992 246 525 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3431 1829 94 NET Servicos de Comunicao S.A
6389 3038 3688 53 BellSouth.net Inc.
17974 2723 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2693 436 200 Telmex Colombia S.A.
22773 2302 2939 139 Cox Communications, Inc.
4766 2156 11550 652 Korea Telecom (KIX)
18566 2053 379 178 MegaPath Corporation
1785 2048 686 132 PaeTec Communications, Inc.
7545 1959 319 109 TPG Internet Pty Ltd
8402 1893 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3038 2985 BellSouth.net Inc.
17974 2723 2635 PT TELEKOMUNIKASI INDONESIA
10620 2693 2493 Telmex Colombia S.A.
22773 2302 2163 Cox Communications, Inc.
1785 2048 1916 PaeTec Communications, Inc.
8402 1893 1877 OJSC "Vimpelcom"
18566 2053 1875 MegaPath Corporation
7545 1959 1850 TPG Internet Pty Ltd
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1721 1701 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/us/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom
62850 UNALLOCATED 8.25.147.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio
62773 UNALLOCATED 8.35.180.0/22 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
62719 UNALLOCATED 12.27.130.0/24 4323 Time Warner Telecom
62861 UNALLOCATED 12.37.197.0/24 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

Complete listing at http://thyme.rand.apnic.net/us/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/us/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:470 /14:923 /15:1618 /16:12786 /17:6691 /18:11085
/19:22899 /20:32790 /21:35423 /22:49661 /23:43465 /24:248989
/25:43 /26:32 /27:17 /28:18 /29:7 /30:2
/31:0 /32:9

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2008 2053 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3038 BellSouth.net Inc.
8402 1605 1893 OJSC "Vimpelcom"
22773 1553 2302 Cox Communications, Inc.
30036 1221 1381 Mediacom Communications Corp
11492 1184 1225 Cable One
1785 1088 2048 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom
22561 965 1241 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/us/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:925 2:840 3:3 4:16 5:813 6:21
8:611 12:1880 13:3 14:834 15:11 16:3
17:19 18:19 20:36 23:611 24:1754 27:1700
31:1525 32:43 33:2 34:5 36:99 37:1943
38:910 39:5 40:181 41:3251 42:229 44:13
46:2079 47:10 49:683 50:858 52:12 54:44
55:5 56:4 57:26 58:1080 59:581 60:362
61:1473 62:1235 63:1973 64:4381 65:2330 66:4149
67:2120 68:1093 69:3286 70:906 71:505 72:2016
74:2573 75:323 76:293 77:1220 78:1007 79:670
80:1279 81:1045 82:629 83:753 84:583 85:1251
86:382 87:1034 88:537 89:1567 90:154 91:5718
92:619 93:1607 94:2113 95:1541 96:516 97:350
98:1087 99:41 100:33 101:443 103:3791 105:531
106:146 107:236 108:519 109:2007 110:956 111:1115
112:576 113:800 114:732 115:978 116:997 117:805
118:1217 119:1269 120:331 121:733 122:1782 123:1204
124:1338 125:1433 128:598 129:217 130:338 131:661
132:344 133:158 134:295 135:72 136:275 137:264
138:351 139:165 140:171 141:328 142:538 143:400
144:502 145:90 146:544 147:433 148:725 149:368
150:149 151:486 152:414 153:207 154:46 155:515
156:307 157:367 158:284 159:696 160:361 161:453
162:909 163:205 164:619 165:571 166:275 167:637
168:1036 169:120 170:1128 171:185 172:11 173:1641
174:661 175:523 176:1319 177:2546 178:1875 179:312
180:1582 181:877 182:1399 183:473 184:620 185:1106
186:2652 187:1451 188:1964 189:1256 190:7231 192:7008
193:5469 194:4028 195:3381 196:1328 197:1064 198:4701
199:5476 200:6036 201:2523 202:8798 203:8822 204:4460
205:2623 206:2802 207:2738 208:3957 209:3651 210:2938
211:1598 212:2174 213:1996 214:888 215:84 216:5394
217:1724 218:629 219:312 220:1254 221:587 222:329
223:531

End of report
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